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CMOS LDO Regulator Series for Portable Equipments
High-speed Load Response FULL CMOS LDO Regulators
BUTA2WNVX Series, BUTA2WHFV Series
No.09020EAT01
Description BUTA2WNVX /HFV series is high-performance FULL CMOS regulator with 200-mA output, which is mounted on microminiature package SSON004X1216 (1.2 mm 1.6 mm 0.6 mm) &HVSOF5(1.6mm X 1.6mm X0.6mm). It has excellent noise characteristics and load responsiveness characteristics despite its low circuit current consumption of 40 A. It is most appropriate for various applications such as power supplies for logic IC, RF, and camera modules. Microminiature package SSON004X1216 & HVSOF5 with built-in heatsink is adopted for the package, which contributes to the space-saving design of the set. Features 1) High-accuracy output voltage of 1% (25 mV on 1.5-V & 1.8-V products 2) High ripple rejection: 70 dB (Typ., 1 kHz, VOUT1.8 V)) 3) Compatible with small ceramic capacitor (CIN=Co=1.0 F) 4) Low current consumption: 40 A 5) ON/OFF control of output voltage 6) With built-in overcurrent protection circuit and overheat protection circuit 7) With built-in output discharge circuit 8) Adopting microminiature power package SSON004X1216 Applications Battery-powered portable equipment, etc. Absolute maximum rating Parameter Maximum applied power voltage Power dissipation Maximum junction temperature Operational temperature range Storage temperature range
Symbol VMAX Pd1 Pd2 TjMAX Topr Tstg
Limits -0.3 ~ +6.5 220*1 (SSON004X1216) 410*2 (HVSOF5) +125 -40 ~ +85 -55 ~ +125
Unit V mW mW C C C
*1 When 1 PCB (70 mm 70 mm, thickness 1.6-mm glass epoxy) a standard ROHM board is implemented. Reduced to 2.2 mW/C when used at Ta=25C or higher. *2 When 1 PCB (70 mm 70 mm, thickness 1.6-mm glass epoxy) a standard ROHM board is implemented. Reduced to 4.1 mW/C when used at Ta=25C or higher.
Recommended operating range (Do not exceed Pd. Parameter Symbol Limits Input power supply voltage VIN 2.5 ~ 5.5 Maximum output current IMAX 200 Recommended operating conditions Parameter Symbol Min. Typ. Max. Input capacitor CIN 0.5*3 1.0 Output capacitor CO 0.5*3 1.0 *3 Set the capacity value of the capacitor so that it does not fall below DC device characteristics, and change with time into consideration.
Unit V mA
Unit Conditions F A ceramic capacitor is recommended. F A ceramic capacitor is recommended. the minimum value, taking temperature characteristics,
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1/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Block diagram, recommended circuit diagram, and pin configuration diagram BHTA2WNVX
Technical Note
VIN
VIN
4/3
Cin
2
VREF OCP
VOUT
1 1/4
VOUT Co
GND VSTBY STBY STBY
3/1
Discharge
Fig.1 Recommended circuit diagram
Recommended ceramic capacitor for Cin & Co Murata Manufacturing Co., Ltd. GRM188B11A105KA61D
BUTA2WNVX(SSON004X1216)
4
3
PIN No. 1 2 3
1 2
Symbol VOUT GND STBY VIN
Function Voltage output Grounding
ON/OFF control of output voltage (High: ON, Low: OFF)
4
Power input
BUTA2WHFV(HVSOF5)
PIN No.
5 4
Symbol STBY GND VIN VOUT N.C.
Function ON/OFF control of output voltage (High:ON, Low:OFF) Grounding Power input Voltage output No Connect
1 2 3 4
1
2
3
5
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2/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Technical Note
Electrical characteristics(Ta=25C, VIN=VOUT+1.0 V (VIN=3.5 V on VOUT=1.8-V and1.5-V products), STBY=1.5 V, CIN=1.0 F, CO=1.0 F, unless otherwise specified) Parameter Output voltage Circuit current Circuit current (at STBY) Symbol VOUT Min. VOUTx0.99 VOUT-25 mV Typ. VOUT Max. VOUTx1.01 VOUT+25 mV Unit Conditions V IOUT=10 AVOUT2.5 V IOUT=10 AVOUT<2.5 V
IIN
ISTBY
-
40
70
95
1
A IOUT=0mA
A STBY=0 V VRR=-20 dBv, fRR=1 kHz, IOUT=10 mA 1.5 VVOUT1.8 V VRR=-20 dBv,fRR=1 kHz, IOUT=10 mA 2.5 VVOUT 2.5 VVOUT2.6 V (VIN=0.98*VOUT, IOUT=200 mA) 2.7 VVOUT2.85 V (VIN=0.98*VOUT, IOUT=200 mA) 2.9 VVOUT3.1 V (VIN=0.98*VOUT,IOUT=200 mA) 3.2 VVOUT3.4 V (VIN=0.98*VOUT, IOUT=200 mA) VIN=VOUT+1.0 V to 5.5 V, IOUT=10 A IOUT=0.01 mA to 100 mA Vo=VOUT*0.8 Vo=0 V VIN=4.0 V, STBY=0 V
Ripple rejection
RR
55 65
-
dB
-
400
800
mV
Input/Output voltage difference VSAT -
360
720
mV
330
660
mV
Line regulation Load regulation Overcurrent protection detection current Output short-circuit current Output discharge resistance Standby pull-down resistance Standby control ON OFF VDL VDLO ILMAX ISHORT RDSC RSTB VSTBH VSTBL 250 20 20 500 1.5 -0.3
300 2 10 400 70 40 1000 -
600 20 80 700 150 80 2000 5.5 0.3
mV mV mV mA mA k V V
* This product does not have radiation-proof design.
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3/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Lineup 200 mA BUTA2WNVX / HFV series Product Name 1.5 1.8 2.5 2.6 BUTA2WNVX BUTA2WHFV
Technical Note
2.7
2.8
2.85
Package SSON004X1216 HVSOF5
2.9
3.0
3.1
3.2
3.3
3.4
-

Model name: BUTA2WNVX / HFV a
Symbol Output voltage (V) 1.5 V(Typ.) 1.8 V(Typ.) 2.5 V(Typ.) 2.5 V(Typ.) 2.7 V(Typ.) Contents Specification of output voltage Output voltage (V) 28 2J 29 30 31 2.8 V(Typ.) 2.85 V(Typ.) 2.9 V(Typ.) 3.0 V(Typ.) 3.1 V(Typ.) Output voltage (V) 3.2 V(Typ.) 3.3 V(Typ.) 3.4 V(Typ.) -
15 a 18 25 26 27
32 33 34 -
Input/Output terminal equivalent circuit schematic 1pin (VOUT) 2pin (GND)
VIN
3pin (STBY)
VIN
4pin (VIN)
VOUT
STBY
Fig. About input/output capacitor
Input/Output equivalent circuit
Capacity value of ceramic capacitor - DC bias characteristics (Example) 10 0 -10 Capacitance Change [%] -20 -30 -40 -50 -60 -70 -80 -90 -100 0 0.5 1 1.5 2 2.5 3 3.5 4
10-V withstand voltage F characteristics 4-V withstand voltage X6S characteristics 10-V withstand voltage F characteristics 10-V withstand voltage B characteristics 6.3-V withstand voltage B characteristics 10-V withstand voltage B1characteristics GRM188B11A105KA61D
It is recommended to place a capacitor as close as possible to the pins between the input terminal and GND or between the output terminal and GND. The capacitor between the input terminal and GND becomes valid when source impedance increases or when wiring is long. The larger the capacity of the output capacitor between the output terminal and GND is, the better the stability and characteristics in output load fluctuation become. However, please check the status of actual implementation. Ceramic capacitors generally have variation, temperature characteristics, and direct current bias characteristics and the capacity value also decreases with time depending on the usage conditions. It is recommended to select a ceramic capacitor upon inquiring about detailed data of the related manufacturer. About the equivalent series resistance (ESR) of a ceramic capacitor Capacitors generally have ESR (equivalent series resistance) and it operates stably in the ESR-IOUT area shown on the right. Since ceramic capacitors, tantalum capacitors, electrolytic capacitors, etc. generally have different ESR, please check the ESR of the capacitor to be used and use it within the stability area range shown in the right graph for evaluation of the actual application.
DC Bias Voltage [V]
Fig.3 Capacity - bias characteristics
100
Unstable area
ESR []
10 1 0.1 0.01 0 50 100 IOUT [mA] 150 200
Stability area
Fig.4 Stability area characteristics (Example)
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4/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Reference data
Technical Note
BU15TA2WNVX / HFV
1.55
(Ta=25C unless otherwise specified.)
100
1.8
1.54
Output Voltage (V)
Output Voltage (V)
1.5 1.2 0.9 0.6 0.3 0.0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 IO=0uA IO=100uA IO=50mA IO=200mA Temp=25C VIN = STBY
1.52 1.51 1.50 1.49 1.48 1.47 1.46 1.45 1.25 1.35 1.45
Gnd Current (uA)
1.53
IO=0uA IO=100uA IO=50mA IO=200mA
80
60
40
Temp=25C VIN = STBY
1.55 1.65 1.75 1.85 1.95 2.05 2.15 2.25
20
Temp=-40C Temp=25C Temp=85C
IO=0uA VIN = STBY
4 4.5 5 5.5
0 0 0.5 1 1.5 2 2.5 3 3.5
Vin Voltage (V)
Vin Voltage (V)
Vin Voltage (V)
Fig. 5 Output Voltage
Fig. 6 Line Regulation
Fig. 7 Circuit Current IGND
140 120
10
120 110
STBY Current (uA)
Gnd Current (uA)
Gnd Current (uA)
8
Temp=85C Temp=25C Temp=-40C
Temp=85C
100 90 80 70 60 50
100 80 60 40 20 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
Temp=25C
6
Temp=-40C Temp=25C Temp=85C
4
Temp=-40C
IO=200mA VIN = STBY
2
VIN = STBY
0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
VIN = 3.5V STBY = 1.5V
0 0.05 0.1 0.15 0.2
40
Vin Voltage (V)
STBY Voltage (V)
Output Current (A)
Fig. 8 Circuit Current IGND
Fig. 9 STBY Input Current
Fig. 10 IOUT - IGND
1.55 1.54
2.00 1.75 VIN=5.5V
2.00 1.75
Output Voltage (V)
1.50 1.25 1.00 0.75 0.50 0.25 0.00 VIN=2.5V
Output Voltage (V)
1.53 1.52 1.51 1.50 1.49 1.48 1.47 1.46 1.45 0 0.05
Output Voltage (V)
Temp=25C Temp=-40C
VIN=3.5V
1.50 1.25 1.00 0.75 0.50 0.25 0.00
Temp=85C
VIN = 3.5V STBY = 1.5V
0.15 0.2
Temp=25C STBY = 1.5V
0.10 0.20 0.30 0.40 0.50 0.60
Temp=85C Temp=25C Temp=-40C
0.1
0.00
0
0.5
1
1.5
Output Current (A)
Output Current (A)
STBY Voltage (V)
Fig. 11 Load Regulation
Fig. 12 OCP Threshold
Fig. 13 STBY Threshold
1.55 1.54
50.00
Output Voltage (V)
1.52 1.51 1.50 1.49 1.48 1.47 1.46 1.45 -40 -15 10 35 60 85
Input Current (uA)
1.53
40.00
30.00
20.00
VIN=3.5V STBY=1.5V Io=0.1mA
10.00
VIN=3.5V STBY=1.5V Io=0mA
-40 -15 10 35 60 85
0.00
1.000 0.900 0.800 0.700 0.600 0.500 0.400 0.300 0.200 0.100 0.000 -0.100 -40
Gnd Current (uA)
VIN=3.5V STBY=0V
-15
10
35
60
85
Temp (C)
Temp (C)
Temp (C)
Fig. 14 VOUT vs. Temp
Fig. 15 IGND vs. Temp
Fig. 16 IGND vs. Temp (STBY)
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5/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Reference data
80 70
Technical Note
BU15TA2WNVX /HFV
80 70 Ripple Rejection [dB] 60 50 40 30 20 10 0 2.5
(Ta=25C unless otherwise specified.)
f= 0 .1 kHz
0.7 O u tpu t N o is e D e n s ity [ V / H z ] 0.6 0.5 0.4 0.3 0.2 0.1 0 0.1 1 10 Frequency f [kHz] 100
Co=1.0F Cin=1.0F Iout=10mA temp=25
Ripple Re je c tion (dB )
60 50 40 30 20 10 0 0.1 1 10 100 1000 Vin= 3.5V Io=10mA Ta = 25
f= 1 kHz f= 1 0 kHz
f= 1 0 0 kHz Co=1.0F Cin=none Iout=10mA temp=25
3.5
4.5
5.5
Frequency (kHz)
Input Voltage VIN[V]
Fig. 17 Ripple Rejection vs. Freq.
Fig. 18 Ripple Rejection vs. VIN (Iout=10 mA)
Fig. 19 Output Noise Spectral Density vs. Freq.
Fig. 20 Load Response
Fig. 21 Load Response
Fig. 22 Load Response
Fig. 23 Load Response
Fig. 24 Load Response Current Pulse=10 kHz
Fig. 25 Load Response Current Pulse=10 kHz
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6/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Reference data
Technical Note
BU15TA2WNVX / HFV
(Ta=25C unless otherwise specified.)
Fig. 26 Load Response Current Pulse=100 kHz
Fig. 27 Load Response Current Pulse=100 kHz
Fig. 28 Startup Time Iout = 0 mA
Fig. 29 Startup Time Iout = 200 mA
Fig. 30 Startup Time (STBY=VIN) Iout = 0 mA
Fig. 31 Startup Time (STBY=VIN) Iout = 200mA
Fig. 32 Discharge Time Iout = 0 mA
Fig. 33 VIN Response Iout = 10 mA
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7/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Reference data
Technical Note
BU18TA2WNVX / HFV
1.85 1.84
(Unless otherwise specified, Ta=25)
3.5 3.0
100
Output Voltage (V)
Output Voltage (V)
2.5 2.0 1.5 1.0 0.5 0.0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 IO=0uA IO=100uA IO=50mA IO=200mA
1.82 1.81 1.80 1.79 1.78 1.77 1.76 1.75 1.75 1.85 1.95 2.05
Gnd Current (uA)
1.83
IO=0uA IO=100uA IO=50mA IO=200mA
80
60
40
Temp=25C VIN = STBY
Temp=25C VIN = STBY
2.15 2.25 2.35
20
Temp=-40C Temp=25C Temp=85C
IO=0uA VIN = STBY
4 4.5 5 5.5
0 0 0.5 1 1.5 2 2.5 3 3.5
Vin Voltage (V)
Vin Voltage (V)
Vin Voltage (V)
Fig. 34 Output Voltage
Fig. 35 Line Regulation
Fig. 36 Circuit Current IGND
140 120
10
120 110
STBY Current (uA)
Gnd Current (uA)
Gnd Current (uA)
8
Temp=85C Temp=25C Temp=-40C
Temp=85C
100 90 80 70 60 50
100 80 60 40 20 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
Temp=25C
6
4
Temp=-40C Temp=25C Temp=85C
Temp=-40C
IO=200mA VIN = STBY
2
VIN = STBY
0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
40 0 0.05 0.1
VIN = 3.5V STBY = 1.5V
0.15 0.2
Vin Voltage (V)
STBY Voltage (V)
Output Current (A)
Fig. 37 Circuit Current IGND
Fig. 38 STBY Input Current
Fig. 39 IOUT - IGND
1.85 1.84
3.50 3.00
3.50 3.00
Output Voltage (V)
Output Voltage (V)
1.82 1.81 1.80 1.79 1.78 1.77 1.76 1.75 0 0.05 0.1
2.50 2.00
Output Voltage (V)
1.83
Temp=25C Temp=-40C
VIN=5.5V
2.50 2.00 1.50 1.00 0.50 0.00
VIN=3.5V 1.50 1.00 0.50 0.00 VIN=2.5V
Temp=85C
VIN = 3.5V STBY = 1.5V
0.15 0.2
Temp=25C STBY = 1.5V
0.50 0.60
Temp=85C Temp=25C Temp=-40C
0.00
0.10
0.20
0.30
0.40
0
0.5
1
1.5
Output Current (A)
Output Current (A)
STBY Voltage (V)
Fig. 40 Load Regulation
Fig. 41 OCP Threshold
Fig. 42 STBY Threshold
1.85 1.84
50.00
Output Voltage (V)
1.82 1.81 1.80 1.79 1.78 1.77 1.76 1.75 -40 -15 10 35 60 85
Input Current (uA)
1.83
40.00
30.00
20.00
VIN=3.5V STBY=1.5V Io=0.1mA
10.00
VIN=3.5V STBY=1.5V Io=0mA
0.00 -40 -15 10 35 60 85
1.000 0.900 0.800 0.700 0.600 0.500 0.400 0.300 0.200 0.100 0.000 -0.100 -40
G nd Current (uA)
VIN=3.5V STBY=0V
-15
10
35
60
85
Temp (C)
Temp (C)
Temp (C)
Fig. 43 VOUT vs Temp
Fig. 44 IGND vs Temp
Fig. 45 IGND vs Temp (STBY)
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8/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Reference data
80 70
Technical Note
BU18TA2WNVX / HFV
80 70 Ripple Rejection [dB] 60 50 40 30 20 10 0 2.5
(Unless otherwise specified, Ta=25)
0.7 O u tpu t N oise D e n sity [ V / H z] 0.6 0.5 0.4 0.3 0.2 0.1 0 0.1 1 10 Frequency f [kHz] 100
Co=1.0F Cin=1.0F Iout=10mA temp=25
f= 0 .1 kHz
R ipple R ejection (dB)
60 50 40 30 20 10 0 0.1 1 10 100 1000 Vin= 3.5V Io=10mA Ta = 25
f= 1 kHz f= 1 0 kHz
f= 1 0 0 kHz Co=1.0F Cin=none Iout=10mA temp=25
3.5
4.5
5.5
Frequency (kHz)
Input Voltage VIN[V]
Fig. 46 Ripple Rejection VS Freq.
Fig. 47 Ripple Rejection VS VIN
Fig. 48 Output Noise Spectrl Density VS Freq.
Fig. 49 Load Response
Fig. 50 Load Response
Fig. 51 Load Response
Fig. 52 Load Response
Fig. 53 Load Response Current Pulse=10kHz
Fig. 54 Load Response Current Pulse=10kHz
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9/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Reference data
Technical Note
BU18TA2WNVX / HFV
(Unless otherwise specified, Ta=25)
Fig. 55 Load Response Current Pulse=100kHz
Fig. 56 Load Response Current Pulse=100kHz
Fig. 57 Start Up Time Iout = 0mA
Fig. 58 Start Up Time Iout = 200mA
Fig. 59 Start Up Time (STBY=VIN) Iout = 0mA
Fig. 60 Start Up Time(STBY=VIN) Iout = 200mA
Fig. 61 Discharge Time Iout = 0mA
Fig. 62 VIN Response Iout = 10mA
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10/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Reference data
Technical Note
BU25TA2WNVX / HFV
(Unless otherwise specified, Ta=25)
3.5 3.0
2.55 2.54
100
Output Voltage (V)
2.5 2.0 1.5 1.0 0.5 0.0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 IO=0uA IO=100uA IO=50mA IO=200mA
Output Voltage (V)
2.52 2.51 2.50 2.49 2.48 2.47 2.46 2.45 2.4 2.5 2.6 2.7
Gnd Current (uA)
2.53
IO=0uA IO=100uA IO=50mA IO=200mA
80
60
40
20
Temp.=25C VIN=STBY
Temp.=25C VIN=STBY
0 2.8 2.9 3 0 0.5 1 1.5 2 2.5
Temp.=-40C Temp.=25C Temp.=85C
IO=0uA VIN=STBY
4 4.5 5 5.5
3
3.5
Vin Voltage (V)
Vin Voltage (V)
Vin Voltage (V)
Fig. 63 Output Voltage
Fig. 64 Line Regulation
Fig. 65 Circuit Current IGND
0.50 0.45
10
120 110
Dropout Voltage (V)
STBY Current (uA)
Temp.=85C Temp.=25C
Gnd Current (uA)
0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 0 0.05
8
Temp.=85C Temp.=25C Temp.=-40C
Temp.=-40C
100 90 80 70 60 50
Temp.=25C
6
Temp.=-40C
4
Temp.=85C
VIN=0.98*VOUT STBY=1.5V
2
0 0.1 0.15 0.2 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
40 0 0.05 0.1 0.15 0.2
Output Current (A)
STBY Voltage (V)
Output Current (A)
Fig. 66 Dropout Voltage
Fig. 67 STBY Input Current
Fig. 68 IOUT - IGND
2.55 2.54
3.00
3.50 3.00 VIN=3.5V VIN=3.0V
Output Voltage (V)
Output Voltage (V)
2.53 2.52
Temp.=25C
2.50
Output Voltage (V)
VIN=5.5V 2.00
Temp.=85C
2.51 2.50 2.49 2.48 2.47 2.46 2.45 0 0.05 0.1 0.15 0.2
2.50 2.00 1.50 1.00 0.50 0.00
1.50
1.00
Temp.=-40C
VIN=3.5V STBY=1.5V
0.50
Temp.=25C STBY=1.5V
Temp.=85C Temp.=25C Temp.=-40C
0.00 0 0.1 0.2 0.3 0.4 0.5 0.6
0
0.5
1
1.5
Output Current (A)
Output Current (A)
STBY Voltage (V)
Fig. 69 Load Regulation
Fig. 70 OCP Threshold
Fig. 71 STBY Threshold
2.55 2.54
50.00
1.000 0.900
Output Voltage (V)
Gnd Current (uA)
Gnd Current (uA)
2.53 2.52 2.51 2.50 2.49 2.48 2.47 2.46 2.45 -40
VIN=3.5V STBY=1.5V Io=0.1mA
40.00
0.800 0.700 0.600 0.500 0.400 0.300 0.200 0.100 0.000
30.00
VIN=3.5V STBY=1.5V Io=0mA
20.00
10.00
VIN=3.5V STBY=0V
0.00 -15 10 35 60 85 -40 -15 10 35 60 85
-0.100 -40 -15 10 35 60 85
Temp. (C)
Temp. (C)
Temp. (C)
Fig. 72 VOUT vs Temp
Fig. 73 IGND vs Temp
Fig. 74 IGND vs Temp (STBY)
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11/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Reference data
Technical Note
BU25TA2WNVX / HFV
80 70 Ripple Rejection [dB]
(Unless otherwise specified, Ta=25)
80
O utput N oise D ensity [ V / H z]
70
f= 0 .1 kHz
1.2 1 0.8 0.6 0.4 0.2 0 0.1 1 10 Frequency f [kHz] 100
Co=1.0F Cin=1.0F Iout=10mA temp=25
Ripple Rejection (dB )
60 50 40 30 20 10 0 0.1 1 10 100 1000 Vin= 3.5V Io=10mA Ta = 25
60 50 40 30 20 10 0 2.5
f= 1 kHz f= 1 0 kHz
f= 1 0 0 kHz Co=1.0F Cin=none Iout=10mA temp=25
3.5
4.5
5.5
Frequency (kHz)
Input Voltage VIN[V]
Fig. 75 Ripple Rejection VS Freq.
Fig. 76 Ripple Rejection VS VIN
Fig. 77 Output Noise Spectrl Density VS Freq.
I OU T=0m A 100m A
I OU T=100m A 0m A
Fig. 78 Load Response
Fig. 79 Load Response
Fig. 80 Load Response
Fig. 81 Load Response
Fig. 82 Load Response Current Pulse=10kHz
Fig. 83 Load Response Current Pulse=10kHz
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12/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Reference data
Technical Note
BU25TA2WNVX / HFV
(Unless otherwise specified, Ta=25)
Fig. 84 Load Response Current Pulse=100kHz
Fig. 85 Load Response Current Pulse=100kHz
Fig. 86 Start Up Time Iout = 0mA
Fig. 87 Start Up Time Iout = 200mA
Fig. 88 Start Up Time (STBY=VIN) Iout = 0mA
Fig. 89 Start Up Time(STBY=VIN) Iout = 200mA
Fig. 90 Discharge Time Iout = 0mA
Fig. 91 VIN Response Iout = 10mA
www.rohm.com (c) 2009 ROHM Co., Ltd. All rights reserved.
13/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Reference data
Technical Note
BU28TA2WNVX / HFV
(Unless otherwise specified, Ta=25)
3.5 3.0
2.85 2.84
100
IO=0uA
Output Voltage (V)
2.82 2.81 2.80 2.79 2.78 2.77 2.76 2.75
Gnd Current (uA)
2.5 2.0 1.5 1.0 0.5 0.0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 IO=0uA IO=100uA IO=50mA IO=200mA Temp.=25C VIN = STBY
Output Voltage (V)
2.83
IO=0uA IO=100uA IO=50mA IO=200mA
80 60 40 20 0
VIN = STBY
Temp.=25C VIN = STBY
2.7 2.8 2.9 3 3.1 3.2
Temp.=-40C Temp.=25C Temp.=85C
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 Vin Voltage (V)
Vin Voltage (V)
Vin Voltage (V)
Fig. 92 Output Voltage
Fig. 93 Line Regulation
Fig. 94 Circuit Current IGND
0.40 0.35
10
120 110
Dropout Voltage (V)
STBY Current (uA)
8
Gnd Current (uA)
0.30 0.25
Temp.=25C
Temp.=85C
Temp.=85C
100 90
Temp.=25C
Temp.=85C
6
Temp.=25C
0.20 0.15 0.10 0.05 0.00 0 0.05 0.1 0.15 0.2
VIN=0.98 x VOUT STBY = 1.5V Temp.=-40C
80 70 60 50 40
VIN = 3.8V STBY = 1.5V Temp.=-40C
4
Temp.=-40C
2
VIN = STBY
0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
0
0.05
0.1
0.15
0.2
Output Current (A)
STBY Voltage (V)
Output Currnt (A)
Fig. 95 Dropout Voltage
Fig. 96 STBY Input Current
Fig. 97 IOUT - IGND
2.85 2.84
VIN = 3.8V
3.50 3.00
3.50
VIN=3.8V
3.00
Output Voltage (V)
Output Voltage (V)
2.83 2.82
STBY = 1.5V
2.50 VIN=5.5V 2.00
VIN=3.8V
Output Voltage (V)
2.50
Temp.=-40C
2.81 2.80 2.79 2.78 2.77 2.76 2.75 0 0.05 0.1 0.15 0.2
Temp.=85C Temp.=25C
2.00
VIN=3.3V 1.50 1.00 0.50 0.00 0 0.1 0.2 0.3 0.4 0.5 0.6
1.50
1.00
Temp=25C STBY = 1.5V
Temp.=85C Temp.=25C Temp.=-40C
0.50
0.00 0 0.5 1 1.5
Output Currnt (A)
Output Current (A)
STBY Voltage (V)
Fig. 98 Load Regulation
Fig. 99 OCP Threshold
Fig. 100 STBY Threshold
2.85 2.84
50.00
1.000 0.900
Output Voltage (V)
Gnd Current (uA)
Gnd Current (uA)
2.83 2.82 2.81 2.80 2.79 2.78 2.77 2.76 2.75 -40 -15 10 35 60 85
40.00
0.800 0.700 0.600 0.500 0.400 0.300 0.200 0.100 0.000 -0.100
30.00
20.00
VIN=3.8V STBY=1.5V Io=0.1mA
10.00
VIN=3.8V STBY=1.5V Io=0mA
VIN=3.8V STBY=0V
0.00 -40 -15 10 35 60 85
-40
-15
10
35
60
85
Temp. (C)
Temp. (C)
Temp. (C)
Fig. 101 VOUT vs Temp
Fig. 102 IGND vs Temp
Fig. 103 IGND vs Temp (STBY)
www.rohm.com (c) 2009 ROHM Co., Ltd. All rights reserved.
14/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Reference data
80 70
Technical Note
BU28TA2WNVX / HFV
80 70 Ripple Rejection [dB] 60 50 40 30 20 10 0
100 1000
(Unless otherwise specified, Ta=25)
1.6 O utput N oise D ensity [ V / H z] 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0.1 1 10 Frequency f [kHz] 100
Co=1.0F Cin=1.0F Iout=10mA temp=25
f= 0 .1 kHz
Ripple Rejection (dB )
60 50 40 30 20 10 0 0.1 1 10
Vin= 3.8V Io=10mA Ta = 25
f= 1 kH z f= 1 0 kH z
f= 1 0 0 kH z Co=1.0F Cin=none Iout=10mA temp=25
2.8
3.8
4.8
Frequency (kHz)
Input Voltage VIN[V]
Fig. 104 Ripple Rejection VS Freq.
Fig. 105 Ripple Rejection VS VIN
Fig. 106 Output Noise Spectrl Density VS Freq.
Fig. 107 Load Response
Fig. 108 Load Response
Fig.109 Load Response
Fig. 110 Load Response
Fig. 111 Load Response Current Pulse=10kHz
Fig. 112 Load Response Current Pulse=10kHz
www.rohm.com (c) 2009 ROHM Co., Ltd. All rights reserved.
15/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Reference data
Technical Note
BU28TA2WNVX / HFV
(Unless otherwise specified, Ta=25)
Fig. 113 Load Response Current Pulse=100kHz
Fig. 114 Load Response Current Pulse=100kHz
Fig. 115 Start Up Time Iout = 0mA
Fig. 116 Start Up Time Iout = 200mA
Fig. 117 Start Up Time (STBY=VIN) Iout = 0mA
Fig. 118 Start Up Time(STBY=VIN) Iout = 200mA
Fig. 119 Discharge Time Iout = 0mA
Fig.120 VIN Response Iout = 10mA
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16/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Reference data
Technical Note
BU30TA2WNVX / HFV
(Unless otherwise specified, Ta=25)
3.5 3.0
3.05 3.04
100
Output Voltage (V)
Output Voltage (V)
2.5 2.0 1.5 1.0 0.5 0.0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 IO=0uA IO=100uA IO=50mA IO=200mA Temp.=25C VIN=STBY
3.02 3.01 3.00 2.99 2.98 2.97 2.96 2.95 2.9 3 3.1 3.2
Gnd Current (uA)
3.03
IO=0uA IO=100uA IO=50mA IO=200mA
80
60
40
Temp.=25C VIN=STBY
3.3 3.4 3.5
20
Temp.=-40C Temp.=25C Temp.=85C
IO=0uA VIN=STBY
4 4.5 5 5.5
0 0 0.5 1 1.5 2 2.5 3 3.5
Vin Voltage (V)
Vin Voltage (V)
Vin Voltage (V)
Fig. 121 Output Voltage
Fig. 122 Line Regulation
Fig. 123 Circuit Current IGND
0.40 0.35
10
120 110
Dropout Voltage (V)
STBY Current (uA)
0.30 0.25 0.20
Gnd Current (uA)
Temp.=85C Temp.=25C Temp.=-40C
8
Temp.=85C Temp.=25C Temp.=-40C
Temp.=25C Temp.=85C
100 90 80
6
0.15 0.10 0.05 0.00 0 0.05 0.1 0.15 0.2
4
Temp=-40C
70 60 50 40
VIN=0.98*VOUT STBY=1.5V
2
VIN=STBY
0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5
0
0.05
0.1
0.15
0.2
Output Current (A)
STBY Voltage (V)
Output Current (A)
Fig. 124 Dropout Voltage
Fig. 125 STBY Input Current
Fig. 126 IOUT - IGND
3.05 3.04
3.50 3.00
3.50
VIN=4.0V
3.00 VIN=4.0V VIN=3.5V
Output Voltage (V)
Output Voltage (V)
3.02 3.01 3.00 2.99 2.98 2.97 2.96 2.95 0 0.05 0.1 0.15 0.2
2.50 2.00 1.50 1.00 0.50 0.00 0 0.1 0.2 0.3 0.4
Output Voltage (V)
3.03
Temp.=25C
VIN=5.5V
2.50 2.00 1.50 1.00 0.50 0.00
Temp.=-40C
VIN=4.0V STBY=1.5V
Temp.=85C
Temp.=25C STBY=1.5V
0.5 0.6
Temp.=85C Temp.=25C Temp.=-40C
0
0.5
1
1.5
Output Current (A)
Output Current (A)
STBY Voltage (V)
Fig. 127 Load Regulation
Fig.128 OCP Threshold
Fig. 129 STBY Threshold
3.05 3.04
50.00
1.000 0.900
Output Voltage (V)
Input Current (A)
Input Current (A)
3.03 3.02 3.01 3.00 2.99 2.98 2.97 2.96 2.95 -40
VIN=4.0V STBY=1.5V Io=0.1mA
40.00
0.800 0.700 0.600 0.500 0.400 0.300 0.200 0.100 0.000 -0.100 -40 -15 10 35 60 85 -40 -15 10 35 60 85
30.00
20.00
10.00
VIN=4.0V STBY=1.5V Io=0mA
VIN=4.0V STBY=0V Io=0mA
0.00 -15 10 35 60 85
Temp. (C)
Temp. (C)
Temp. (C)
Fig. 130 VOUT vs Temp
Fig. 131 IGND vs Temp
Fig. 132 IGND vs Temp (STBY)
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17/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Reference data
Technical Note
BU30TA2WNVX / HFV
80
(Unless otherwise specified, Ta=25)
80
Ripple Re je c tio n (dB )
70 Ripple Rejection [dB] 60 50 40 30 20 10 0 3
0.1 1 10 100 1000
f= 1 0 0 kHz Co=1.0F Cin=none Iout=10mA temp=25 f= 1 kH z f= 1 0 kHz
O u tpu t N o ise D e n sity [ V / H z]
70 60 50 40 30 20 10 0 Vin= 4.0V Io=10mA Ta = 25
f= 0 .1 kHz
1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0.1 1 10 Frequency f [kHz] 100
Co=1.0F Cin=1.0F Iout=10mA temp=25
4 Input Voltage VIN[V]
5
Frequency (kHz) Fig. 133 Ripple Rejection VS Freq.
Fig. 134 Ripple Rejection VS VIN
Fig. 135 Output Noise Spectrl Density VS Freq.
Fig. 136 Load Response
Fig. 137 Load Response
Fig. 138 Load Response
Fig. 139 Load Response
Fig. 140 Load Response Current Pulse=10kHz
Fig. 141 Load Response Current Pulse=10kHz
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18/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Reference data
Technical Note
BU30TA2WNVX / HFV
(Unless otherwise specified, Ta=25)
Fig. 142 Load Response Current Pulse=100kHz
Fig. 143 Load Response Current Pulse=100kHz
Fig. 144 Start Up Time Iout = 0mA
Fig. 145 Start Up Time Iout = 200mA
Fig. 146 Start Up Time (STBY=VIN) Iout = 0mA
Fig. 147 Start Up Time(STBY=VIN) Iout = 200mA
Fig. 148 Discharge Time Iout = 0mA
Fig. 149 VIN Response Iout = 10mA
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19/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Reference data
Technical Note
BU33TA2WNVX / HFV
(Unless otherwise specified, Ta=25)
3.5 3.0
3.35 3.34
100
Output Voltage (V)
Output Voltage (V)
2.5 2.0 1.5 1.0 0.5 0.0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 IO=0uA IO=100uA IO=50mA IO=200mA Temp.=25C VIN = STBY
3.32 3.31 3.30 3.29 3.28 3.27 3.26 3.25 3.2 3.3 3.4
Gnd Current (uA)
3.33
IO=0uA IO=100uA IO=50mA IO=200mA
80
60
40
20
Temp=25C VIN = STBY
0 3.5 3.6 3.7 0 0.5 1 1.5 2 2.5
Temp.=-40C Temp.=25C Temp.=85C
IO=0uA VIN = STBY
4 4.5 5 5.5
3
3.5
Vin Voltage (V)
Vin Voltage (V)
Vin Voltage (V)
Fig. 150 Output Voltage
Fig. 151 Line Regulation
Fig. 152 Circuit Current IGND
0.35 0.30
10
120 110
Dropout Voltage (V)
Gnd Current (uA)
Temp.=85C
0.25 0.20 0.15 0.10 0.05 0.00 0 0.05 0.1 0.15 0.2
STBY Current (uA)
8
Temp.=85C Temp.=25C Temp.=-40C
Temp.=85C Temp.=25C Temp.=-40C
100 90 80 70 60 50
Temp.=25C Temp.=-40C
6
4
VIN=0.98 x VOUT STBY = 1.5V
2
VIN = STBY
0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 40 0 0.05 0.1
VIN = 4.3V STBY = 1.5V
0.15 0.2
Output Current (A)
VSTBY Voltage (V)
Output Current (A)
Fig. 153 Dropout Voltage
Fig. 154 STBY Input Current
Fig. 155 IOUT - IGND
3.35 3.34
3.50 3.00
3.50
VIN=4.3V
3.00 VIN=5.5V 2.50 VIN=4.3V 2.00 1.50 1.00
Output Voltage (V)
Output Voltage (V)
Output Voltage (V)
3.33 3.32 3.31 3.30 3.29 3.28 3.27 3.26 3.25 0 0.05 0.1 0.15 0.2
VIN=3.8V
2.50 2.00 1.50 1.00 0.50 0.00
Temp.=25C
Temp.=-40C
Temp.=85C VIN = 4.3V STBY = 1.5V
STBY = 1.5V
0.50 0.00 0 0.1 0.2 0.3 0.4 0.5 0.6
Temp=25
Temp.=85C Temp.=25C Temp.=-40C
0
0.5
1
1.5
Output Current (A)
Output Current (A)
STBY Voltage (V)
Fig. 156 Load Regulation
Fig. 157 OCP Threshold
Fig. 158 STBY Threshold
3.35 3.34
50.00
1.000 0.900
Output Voltage (V)
Gnd Current (uA)
Gnd Current (uA)
3.33 3.32 3.31 3.30 3.29 3.28 3.27 3.26 3.25 -40 -15 10 35 60 85
40.00
0.800 0.700 0.600 0.500 0.400 0.300 0.200 0.100 0.000 -0.100 -40 -15 10 35 60 85 -40 -15 10 35 60 85
30.00
20.00
VIN=4.3V STBY=1.5V Io=0.1mA
10.00
VIN=4.3V STBY=1.5V Io=0mA
VIN=4.3V STBY=0V
0.00
Temp. (C)
Temp. (C)
Temp. (C)
Fig. 159 VOUT vs Temp
Fig. 160 IGND vs Temp
Fig. 161 IGND vs Temp (STBY)
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20/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Reference data
80
Technical Note
BU33TA2WNVX / HFV
80
(Unless otherwise specified, Ta=25)
1.8 O u tpu t N o ise D e n sity [ V / H z ]
f= 1 kHz f= 0 .1 kHz f= 1 0 kHz
70
R ipple R e je c tio n (dB )
70 Ripple Rejection [dB] 60 50 40 30 20 10 0 3.3
0.1 1 10 100 1000
1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 0.1 1 10 Frequency f [kHz]
60 50 40 30 20 10 0 Vin= 4.3V Io=10mA Ta = 25
Co=1.0F Cin=1.0F Iout=10mA temp=25
f= 1 0 0 kHz
Co=1.0F Cin=none Iout=10mA temp=25
4.3 Input Voltage VIN[V]
5.3
100
Frequency (kHz)
Fig. 162 Ripple Rejection VS Freq.
Fig. 163 Ripple Rejection VS VIN
Fig. 164 Output Noise Spectrl Density VS Freq.
Fig. 165 Load Response
Fig. 166 Load Response
Fig. 167 Load Response
Fig. 168 Load Response
Fig. 169 Load Response Current Pulse=10kHz www.rohm.com (c) 2009 ROHM Co., Ltd. All rights reserved.
Fig. 170 Load Response Current Pulse=10kHz
21/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Reference data
Technical Note
BU33TA2WNVX / HFV
(Unless otherwise specified, Ta=25)
Fig. 171 Load Response Current Pulse=100kHz
Fig. 172 Load Response Current Pulse=100kHz
Fig. 173 Start Up Time Iout = 0mA
Fig. 174 Start Up Time Iout = 200mA
Fig. 175 Start Up Time (STBY=VIN) Iout = 0mA
Fig. 176 Start Up Time(STBY=VIN) Iout = 200mA
Fig. 177 Discharge Time Iout = 0mA
Fig. 178 VIN Response Iout = 10mA
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22/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Technical Note
About power dissipation (Pd) As for power dissipation, an approximate estimate of the heat reduction characteristics and internal power consumption of IC are shown, so please use these for reference. Since power dissipation changes substantially depending on the implementation conditions (board size, board thickness, metal wiring rate, number of layers and through holes, etc.), it is recommended to measure Pd on a set board. Exceeding the power dissipation of IC may lead to deterioration of the original IC performance, such as causing operation of the thermal shutdown circuit or reduction in current capability. Therefore, be sure to prepare sufficient margin within power dissipation for usage. Calculation of the maximum internal power consumption of IC (PMAX) PMAX=(VIN-VOUT)xIOUT(MAX.) (VIN: Input voltage VOUT: Output voltage IOUT(MAX): Maximum output current) SSON004X1216
Measurement conditions Evaluation Board 1 (Single-side Board)
40 20
Evaluation Board 2 (Double-side Board)
40 20
40 20
40 20
Layout of Board for Measurement (Unit: mm)
Top Layer (Top View)
40
Top Layer (Top View)
40 20
IC Implementation Position
40 40 20
Bottom Layer (Top View) Measurement State Board Material Board Size Wiring Rate Top layer Bottom layer
With board implemented (Wind speed 0 m/s)
Bottom Layer (Top View)
With board implemented (Wind speed 0 m/s)
Glass epoxy resin (Single-side board) 40 mm x 40 mm x 0.8 mm Metal (GND) wiring rate: Approx. 25% Metal (GND) wiring rate: Approx 0% 0 holes 1100 mW ja=91C/W
Glass epoxy resin (Double-side board) 40 mm x 40 mm x 0.8 mm Metal (GND) wiring rate: Approx. 25% Metal (GND) wiring rate: Approx 25% Diameter 0.5 mm 12 holes 1250 mW ja=80C/W
Through Hole Power Dissipation Thermal Resistance
1500 1250 mW Evaluation board 2 (Double-side board) 1000 Pd (mW) 1100 mW Evaluation board 1 (Single-side board) 500 Standard ROHM board 220 mW 0 0 25 50 Ta ( ) 75 100 125
* Please design the margin so that PMAX becomes is than Pd (PMAXPd) within the usage temperature range.
- Standard ROHM board Size: 70 mm 70 mm 1.6 mm Material: Glass epoxy board
Fig.179 SSON004X1216
Power dissipation heat reduction characteristics (Reference)
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23/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
HVSOF5
Technical Note
PdW)
* Please design the margin so that PMAX becomes is than Pd (PMAXPd) within the usage temperature range.
Fig.180
HVSOF5 Power dissipation heat reduction characteristics (Reference)
DEVICE TYPE & Mark
SSON004X1216 HVSOF5
Device type:
BUXXTA2WNVX
a
Device typce:
BUXXTA2WHFV
a
package XX 15 18 23 25 26 a 27 28 2J 29 30 31 32 33 34 output voltage 1.5V typ. 1.8V typ. 2.3V typ. 2.5V typ. 2.6V typ. 2.7V typ. 2.8V typ. 2.85V typ. 2.9V typ. 3.0V typ. 3.1V typ. 3.2V typ. 3.3V typ. 3.4V typ. SSON004 X1216 AA AB AG AC AD AE AF AG AH AJ AK AL AM AN HVSOF5 BA BB BC BD BE BF BG BH BJ BK BL BM BN BP
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24/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
SSON004X1216 Mark
Technical Note
Lot No.
HVSOF5
Makrk
Lot No.
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25/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Other notes
Technical Note
- About absolute maximum rating Breakage may occur when absolute maximum ratings such as applied voltage and operating temperature range are exceeded. Short mode or open mode cannot be specified at occurrence of a break, so please prepare physical safety measures (e.g., fuse) if such special mode in which the absolute maximum rating is exceeded can be assumed. - About GND potential Please be sure that the potential of the GND terminal is the lowest in any operating condition. - About thermal design Please provide thermal design with sufficient margin, taking power dissipation (Pd) in actual usage conditions into consideration.
- About short between pins and misattachment Please be careful regarding the IC direction and misalignment at attachment onto a printed circuit board. Misattachment may cause a break of IC. Short caused by foreign matter between outputs, output and power supply, or GNDs may also lead to a break. - About operation in a strong electromagnetic field Please note that usage in a strong electromagnetic field may cause malfunction. - About common impedance Please give due consideration to wiring of the power source and GND by reducing common-mode ripple or making ripple as small as possible (e.g., making the wiring as thick and short as possible, or reducing ripple by LC), etc. - About STBY terminal voltage Set STBY terminal voltage to 0.3 V or less to put each channel into a standby state and to 1.5 V or more to put each channel into an operating state. Do not fix STBY terminal voltage to 0.3 V or more and 1.5 V or less or do not lengthen the transition time. This may cause malfunction or failure. When shorting the VIN terminal and STBY terminal for usage, the status will be "STBY=VINLOW" at turning the power OFF, and discharge of the VOUT terminal cannot operate, which means voltage may remain for a certain time in the VOUT terminal. Since turning the power ON again in this state may cause overshoot, turn the power ON for use after the VOUT terminal is completely discharged. - About overcurrent protection circuit Output has a built-in overcurrent protection circuit, which prevents IC break at load short. Note that this protection circuit is effective for prevention of breaks due to unexpected accidents. Please avoid usage by which the protection circuit operates continuously. - About thermal shutdown Output is OFF when the thermal circuit operates since a temperature protection circuit is built in to prevent thermal breakdown. However, it recovers when the temperature returns to a certain temperature. The thermal circuit operates at emergency such as overheating of IC. Since it is prepared to prevent IC breakdown, please do not use it in a state in which protection works.
Reverse current
About reverse current For applications on which reverse current is assumed to flow into IC, it is recommended to prepare a path to let the current out by putting a bypass diode between the VIN-VOUT terminals.
VIN STBY
OUT
GND
Fig.181 Example of bypass diode connection About testing on a set board When connecting a capacitor to a terminal with low impedance for testing on a set board, please be sure to discharge for each process since IC may be stressed. As a countermeasure against static electricity, prepare grounding in the assembly process and take sufficient care in transportation and storage. In addition, when connecting a capacitor to a jig in a testing process, please do so after turning the power OFF and remove it after turning the power OFF.
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26/27
2009.05 - Rev.B
BUTA2WNVX Series, BUTA2WHFV Series
Selection of order type
Technical Note
B
U
1
5
TA2
W
N
V
X
T
R
ROHM type
Output voltage 15 : 1.5V 18 : 1.8V 25 : 2.5V 26 : 2.6V 27 : 2.7V 28 : 2.8V 2J : 2.85V 29 : 2.9V 30 : 3.0V 31 : 3.1V 32 : 3.2V 33 : 3.3V 34 : 3.4V
Lineup High-speed Load Response Full CMOS LDO Regulators
Package NVX : SSON004X1216 HFV : HVSOF5
Package specification
TR : reel shape emboss taping
SSON004X1216
1.20.1
1.6 0.1

Tape Quantity Direction of feed
S
+0.03 0.02 -0.02 (0.12)
Embossed carrier tape 5000pcs TR
The direction is the 1pin of product is at the upper right when you hold
1PIN MARK
0.6MAX
( reel on the left hand and you pull out the tape on the right hand
)
0.08 S +0.05 0.2 -0.04
0.2 0.1
0.650.1
1 2
4
3
0.8 0.1
0.750.1
1pin
Direction of feed
(Unit : mm)
Reel
Order quantity needs to be multiple of the minimum quantity.
HVSOF5

1.60.05 (0.8)
0.2MAX
Tape Quantity Direction of feed
Embossed carrier tape 3000pcs TR
The direction is the 1pin of product is at the upper right when you hold
1.20.05 (MAX 1.28 include BURR)
1.00.05
(0.05)
(0.3)
1.60.05
5
4
4
5
(0.91)
(0.41)
( reel on the left hand and you pull out the tape on the right hand
1pin
)
123
321
0.130.05 S
0.6MAX
+0.03 0.02 -0.02
0.1 0.5 0.220.05
S 0.08
M
Direction of feed
(Unit : mm)
Reel
Order quantity needs to be multiple of the minimum quantity.
www.rohm.com (c) 2009 ROHM Co., Ltd. All rights reserved.
27/27
2009.05 - Rev.B
Notice
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. Great care was taken in ensuring the accuracy of the information specified in this document. However, should you incur any damage arising from any inaccuracy or misprint of such information, ROHM shall bear no responsibility for such damage. The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM and other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. The Products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices). The Products specified in this document are not designed to be radiation tolerant. While ROHM always makes efforts to enhance the quality and reliability of its Products, a Product may fail or malfunction for a variety of reasons. Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual. The Products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel-controller or other safety device). ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes. If a Product is intended to be used for any such special purpose, please contact a ROHM sales representative before purchasing. If you intend to export or ship overseas any Product or technology specified herein that may be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to obtain a license or permit under the Law.
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