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2001.Jul.21
800mA LDO REGULATOR
R1170X series
s OUTLINE
The R1170 Series are positive voltage regulator ICs by CMOS process. The R1170 Series have features of high ripple rejection, low dropout voltage, high output voltage accuracy, low consumption current. Each of these ICs consists of a voltage reference unit, an error amplifier, resistor net for setting output voltage, a current limit circuit at short mode, a chip enable circuit, and thermal-shunt circuit. Output Voltage of R1170 is fixed in the IC. Low consumption current by the merit of CMOS process and built-in transistors with low ON-resistance make low dropout voltage and chip enable function prolong the battery life. These regulators are remarkable improvement on the current regulators in terms of ripple rejection, input transient response, and load transient response. Maximum Output Current is large for its compact size. Thus, the R1170 Series are suitable for various power sources for portable appliances. Since the packages for these ICs are the SOT-89-5 package or HSON6, high density mounting of the ICs on boards is possible.
s FEATURES
qUltra-Low Supply Current* * * * * * * * TYP. 80A qLow Standby Current * * * * * * * * * * * TYP. 0.1A qOutput Current * * * * * * * * * * * * * * * MIN. 800mA(VIN=VOUT+1.0V) qOutput Voltage * * * * * * * * * * * * Stepwise setting with a step of 0.1V in the range of 1.5V to 4.0V qHigh Output Voltage Accuracy* * * * 2.0% qLow Dropout Voltage* * * * * * * * * * * * TYP. 0.12V(VOUT=3.0V, IOUT=300mA) qLine Regulation* * * * * * * * * * * * TYP. 0.05%/V qSmall Package * * * * * * * * * * * * * * * * SOT-89-5, HSON6 qBuilt-in Current Limit Circuit qBuilt-in Thermal Shunt Circuit qLow Temperature-drift Coefficient of Output Voltage * * * * * * * * * TYP.100ppm/C
s APPLICATIONS
qLocal Power source for Notebook PC. qLocal Power source for portable appliances, cameras, and videos. qLocal Power source for equipment of battery-use. qLocal Power source for home appliances.
Rev. 1.10
-1-
s BLOCK DIAGRAMS R1170H Series R1170D Series
5
+
VDD
4
VOUT
V DD 6 V DD 5
+
1 2
VOUT VOUT
Vref
Current Limit
Vref
GND
2
Current Limit
GND
4
CE
1
CE
3
s SELECTION GUIDE
The output voltage, the chip-enable polarity, the taping type can be selected at the user's request. The selection can be made with the part number as follows;
R1170X XXXX-XX Part Number
abc d
Code a b c
d
Contents Package Type; H: SOT89-5, D: HSON-6P Designation of Output Voltage(VOUT) Stepwise setting with 0.1V increment in the range from 1.5V to 4.0V Designation of option; A: Built-in Chip Enable Circuit, Active at "L" B: Built-in Chip Enable Circuit, Active at "H" Designation of Taping Type; T1 or T2 (SOT89-5), TR(HSON-6) (Refer to Taping Specifications)
s PIN CONFIGURATION
q SOT-89-5
5
4
Mark
Side 2 3
1
Rev. 1.10
-2-
q HSON-6P 6 5 4
s PIN DESCRIPTION
SOT89-5 Pin No. 1 2 3 4 5 HSON-6P Pin No. 1 2 3 4 5 6 Symbol CE or CE GND NC VDD VOUT
1
2
3
Description Chip Enable Pin Voltage Regulator Output Pin Ground Pin No Connection Input Pin Voltage Regulator Output Pin
Symbol VOUT VOUT CE or CE GND VDD VDD
Description Voltage Regulator Output Pin Voltage Regulator Output Pin Chip Enable Pin Voltage Regulator Output Pin Ground Pin Input Pin Input Pin
s ABSOLUTE MAXIMUM RATINGS
Item Input Voltage Input Voltage(CE or CE Input Pin)*Note Output Voltage Output Current Power Dissipation Operating Temperature Storage Temperature Symbol VIN VCE VOUT IOUT PD Topt Tstg Rating Unit 7.0 V -0.3 ~ VIN+0.3 V -0.3 ~ VIN+0.3 V 1.2 A Internally limited C -40 ~ 85 C -55 ~ 125
Rev. 1.10
-3-
s ELECTRICAL CHARACTERISTICS
qR1170XxxxA
Item Input Voltage Supply Current1 Standby Current Output voltage Output Current Load regulation Dropout Voltage Line regulation Ripple Rejection Output Voltage Temperature Coefficient Short Current Limit Pull-up resistance for CE pin CE Input Voltage "H" CE Input Voltage "L" Thermal Shutdown Detector Threshold Temperature Thermal Shutdown Released Temperature Symbol VIN Conditions VIN-VOUT=1.0V VCE=GND VIN=VCE=6.0V VIN-VOUT=1.0V IOUT=100mA VIN-VOUT=1.0V VIN-VOUT=1.0V 1mAIOUT300mA IOUT=300mA IOUT=100mA VOUT+0.5VVIN8.0V f=1kHz,Ripple 0.5Vp-p VIN-VOUT=1.0V IOUT=10mA -40C Topt 85C VOUT=0V MIN. (Topt=25C) TYP. MAX. 6.0 80 160 0.1 x0.98 800 30 100 Unit V A
ISS1
Istb VOUT IOUT1 VOUT/ IOUT VDIF VOUT/ VIN RR VOUT/ T ILIM RPU VCEH VCEL TTSD TTSR
1.0
x1.02
A
V mA mV
Refer to Dropout Voltage Table 0.05 0.30 %/V 50 100 40 2.50 dB ppm /C mA M V V C C
1.25 1.50 0.00 Junction Temperature Junction Temperature
5.00 VIN 0.25
150 120
Rev. 1.10
-4-
qR1170xxxxB
Item Input voltage Supply Current1 Standby Current Reference Voltage for Adjustable Voltage Regulator Output Current Load regulation Dropout Voltage Line regulation Ripple Rejection Output Voltage Temperature Coefficient Short Current Limit Pull-down resistance for CE pin CE Input Voltage "H" CE Input Voltage "L" Thermal Shutdown Detector Threshold Temperature Thermal Shutdown Released Temperature Symbol Conditions VIN ISS1 VIN-VOUT=1.0V VCE=VIN Istb VIN=6.0V, VCE=GND VOUT VIN-VOUT=1.0V IOUT=100mA IOUT1 VIN-VOUT=1.0V VOUT/ VIN-VOUT=1.0V IOUT 1mAIOUT300mA VDIF IOUT=300mA VOUT/ IOUT=100mA VIN VOUT+0.5VVIN8.0V RR f=1kHz,Ripple 0.5Vp-p VOUT/ -40CTopt85C T ILIM VOUT=0V RPD VCEH VCEL TTSD Junction Temperature TTSR Junction Temperature MIN. TYP. (Topt=25C) MAX. Unit 6.0 V A 80 160 1.0 A 0.1 x1.02 V mA mV
x0.98 800
30
100
Refer to Dropout Voltage Table 0.05 0.30 %/V 50 100 40 2.5 dB ppm /C mA M V V C C
1.25 1.5 0
5 VIN 0.25
150 120
qDropout Voltage by Output Voltage (Topt=25C) Output Voltage Dropout Voltage (V) VOUT(V) TYP. MAX. VOUT=1.5 0.35 0.45 VOUT=1.6 0.30 0.35 VOUT=1.7 1.8VOUT2.0 2.1VOUT2.4 2.5VOUT4.0 0.25 0.20 0.15 0.12 0.30 0.25 0.20 0.18
Rev. 1.10
-5-
s TEST CIRCUITS
CE 1 IN VDD 4
R1170Hxx1B Series 10F
1 VOUT 5 OUT Iout
10F 10F
CE VOUT 5 OUT
10F
IN ISS
VDD 4
R1170Hxx1B Series
2
GND
2
GND
Standard Test Circuit
Supply Current Test Circuit
1 IN VDD 4
CE VOUT 5 OUT Iout
10F 10F
1 IN VDD 4
CE VOUT 5 OUT
R1170Hxx1B Series
R1170Hxx1B Series
10F
P.G 2 GND 2 GND
I1 I2
Test Circuit for Ripple Rejection, Input Transient Response
Test Circuit for Load Transient Response
Rev. 1.10
-6-
s Technical Notes on External Components and Typical Application
Phase Compensation In these ICs, phase compensation is made with Output capacitor for securing stable operation even if the load current is varied. For this purpose, use as much as 10F Capacitor as CL. If you use a tantalum type capacitor and ESR value of the capacitor is large, output might be unstable. Evaluate your circuit with considering frequency characteristics. Further, refer to the Typical Characteristics No.12. Mounting on PCB Make VDD and GND lines sufficient. If the impedance of these is high, current flows, the noise might be picked up or be a cause of unstable operation. Further use as much as 10F Capacitor between VDD pin and GND pin as close as possible. Set an Output capcitor between VOUT pin and GND pin for phase compensation as close as possible. (Refer to the example of typical application)
Example of the typical application of R1170HxxxB
CE
IN
CI
VDD
R1170Hxx1B
VOUT
CL
OUT
GND
CI=10F(Ceramic), CL=10F(Ceramic)
Rev. 1.10
-7-
s TYPICAL CHARACTERISTICS
1)Output Voltage vs. Output Current(Topt=25C)
R1170X151B 2 VIN=3.5V
2.5 2 R1170X201B
Output Voltage VOUT(V)
1.5
1
VIN=3V VIN=2.5V
Output Voltage VOUT(V)
1.5 1 VIN=3V VIN=4V VIN=3.5V
0.5
0.5 0
0 0 500 1000 Output Current IOUT(mA) 1500
0
500 1000 Output Current IOUT(mA) R1170X401B
1500
R1170X301B
3.5 3 Output Voltage VOUT(V) 2.5 2 1.5 1 0.5 0 0 500 1000 Output Current IOUT(mA) 1500 Output Voltage VOUT(V) 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 0
VIN=4.5V VIN=4V VIN=5V
VIN=5.5V VIN=5V
VIN=6V
500 1000 Output Current IOUT(mA)
1500
2)Output Voltage vs. Input Voltage(Topt=25C)
R1170X151B 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1 2 3 4 Input Voltage VIN(V) 5 6 IOUT = 100mA IOUT = 300mA IOUT = 1mA IOUT = 10mA 2.2 2.1 Output Voltage VOUT(V) 2 IOUT = 10mA IOUT = 1mA R1170X201B
Output Voltage VOUT(V)
1.9 1.8 1.7 1.6 1.5 1.4 1 2 3 4 Input Voltage VIN(V) 5 6 IOUT = 100mA IOUT = 300mA
Rev. 1.10
-8-
R1170X301B 3.2 3.1 Output Voltage VOUT(V) IOUT = 10mA 3 2.9 2.8 2.7 2.6 2.5 2 3 4 Input Voltage VIN(V) 5 6 IOUT = 100mA IOUT = 300mA IOUT = 1mA Output Voltage VOUT(V) 4.2 4.1 4 3.9 3.8 3.7 3.6 3.5 3.4 3.5 4
R1170X401B
IOUT = 1mA IOUT = 10mA
IOUT=100mA IOUT=300mA
4.5
5
5.5
6
Input Voltage VIN(V)
3)Dropout Voltage vs. Output Current
R1170X151B 0.45 0.4 Dropout Voltage VDIF(V) 85C 25C Dropout Voltage VDIF(V) 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 0 100 200 300 400 Output Current IOUT(mA) R1170X301B 0.3 0.25 Dropout Voltage VDIF(V) 85C 0.2 0.15 0.1 0.05 0 0 100 200 300 400 500 Output Current IOUT(mA) 25C -40C Dropout Voltage VDIF(V) 0.25 500 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 0 100 200 300 400 Output Current IOUT(mA) R1170X401B 500 85C -40C 25C R1170X201B
-40C
0.2 85C 0.15 25C
0.1
-40C
0.05
0 0 100 200 300 400 Output Current IOUTmA 500
Rev. 1.10
-9-
4)Output Voltage vs. Temperature
R1170X151B 1.60 1.58 Output Voltage VOUT (V)
Output Voltage VOUT (V)
VIN=2.5V IOUT=10mA 2.10 2.08 2.05 2.03 2.00 1.98 1.95 1.93 1.90
R1170X201B
VIN=3V IOUT=10mA
1.55 1.53 1.50 1.48 1.45 1.43 1.40 -50 -25 0 25 50 Temperature Topt(C) R1170X301B 75 100
-50
-25
0
25
50
75
100
Temperature Topt (C) R1170X401B 4.20 4.15 Output Voltage VOUT (V) 4.10 4.05 4.00 3.95 3.90 3.85 3.80
VIN=4V IOUT=10mA
VIN=5V IOUT=10mA
3.20 3.15 Output Voltage VOUT (V) 3.10 3.05 3.00 2.95 2.90 2.85 2.80 -50 -25 0 25 50 (C) Temperature Topt 75 100
-50
-25
0 25 50 Temperature Topt(C)
75
100
5)Supply Current vs. Input Voltage(Topt=25C)
R1170X151B 120 100 Supply Current Iss(uA) 80 60 40 20 0 0 1 2 3 4 5 Input Voltage VIN(V) 6 7 Supply Current Iss(uA) 120 100 80 60 40 20 0 0 1 2 3 4 5 Input Voltage VIN(V) 6 7 R1170X201B
Rev. 1.10
- 10 -
120 100 Supply Current IssuA) 80 60 40 20 0 0 1 2
R1170X301B 120 100 Supply Current Iss(uA) 80 60 40 20 0 3 4 5 Input Voltage VIN(V) 6 7 0 1 2
R1170X401B
3 4 5 Input Voltage VIN(V)
6
7
6)Supply Current vs. Temperature
R1170X151B VIN=2.5V 160 140 Supply Current Iss (uA) Supply Current Iss (uA) 120 100 80 60 40 20 -50 -25 0 50 Temperature Topt (C) 25 75 100 160 140 120 100 80 60 40 20 -50 -25 0 25 50 Temperature Topt (C) R1170X401B VIN=4V 160 140 Supply Current Iss (uA) Supply Current Iss (uA) 120 100 80 60 40 20 -50 -25 0 25 50 Temperature Topt (C) 75 100 VIN=5V 160 140 120 100 80 60 40 20 -50 -25 0 25 50 75 100 Temperature Topt (C) 75 100 R1170X201B VIN=3V
R1170X301B
Rev. 1.10
-11-
7)Dropout Voltage vs. Set Output Voltage(Topt=25C)
R1170XXXXB 0.35 0.3 Dropout Voltage VDIF(V) 0.25 0.2 0.15 0.1 0.05 0 1 1.5 2 2.5 3 Set Output Voltage VSET(V) 3.5 4 IOUT=500mA IOUT=300mA
IOUT=100mA
8)Ripple Rejection vs. Frequency
R1170X151B 80 70 Ripple Rejection RR (dB) Ripple Rejection RR (dB) 60 50 40 30 20 10 0 0.01 0.1 1 10 Ripple Frequency f (kHz) R1170X301B 80 Ripple Rejection RR (dB) 70 60 50 40 30 20 10 0 0.01 0.1 1 10 Ripple Frequency f (kHz) 100 Ripple Rejection RR (dB) 100 VIN=2.5V+0.5Vp-p IOUT=100mA 80 70 60 50 40 30 20 10 0 0.01 R1170X201B VIN=3V+0.5Vp-p IOUT=100mA
0.1 1 10 Ripple Frequency f(kHz) R1170X401B VIN=5V+0.5Vp-p IOUT=100mA
100
VIN=4V+0.5Vp-p IOUT=100mA 80 70 60 50 40 30 20 10 0 0.01
0.1 1 10 Ripple Frequency f (kHz)
100
Rev. 1.10
- 12 -
9)Ripple Rejection vs. Input Voltage
R1170X301B 60 50 Ripple Rejection RR(dB) 40 30 20 10 0 3 3.2 3.4 Input Voltage VIN(V) R1170X301B 60 f = 400Hz 50 Ripple Rejection RR(dB) 40 30 20 10 0 3 3.2 3.4 Input Voltage VIN(V) 3.6 f = 10kHz f =1kHz IOUT = 100mA COUT = 10uF 3.6 f = 10kHz f = 400Hz Ripple Rejection RR(dB) f =1kHz IOUT = 1mA COUT = 10uF 60 f = 400Hz 50 40 30 20 10 0 3 3.2 3.4 3.6 Input Voltage VIN(V) f = 10kHz f =1kHz R1170X301B IOUT = 10mA COUT = 10uF
10)Input Transient Response (Topt=25C)
R1170X151B 1.8 1.75 Output Voltage VOUT(V) 1.7 1.65 1.6 1.55 1.5 1.45 1.4 0 20 40 60 80 100 Time t(us 120 140 160 180 Output Voltage Input Voltage tr=tf=10us IOUT=100mA COUT=Ceramic 10uF 4 3.5 Input Voltage VIN(V) 3 2.5 2 1.5 1 0.5 0 200
Rev. 1.10
-13-
R1170X301B
tr=tf=10us IOUT=100mA COUT=Ceramic 10uF
3.4 3.3 3.2 3.1 3 2.9 2.8
0 20 40 60 80 100 Time t(us) R1170X301B 3.4 3.3 Input Voltage 3.2 3.1 3 2.9 2.8 0 20 40 60 80 100 Time t(us) 120 140 160 180 120 140 160 180 Output Voltage Input Voltage
6 5 4 3 2 1 0
200 Input Voltage VIN(V) Output Current IOUT(mA) Input Voltage VIN(V)
Output Voltage VOUT(V)
tr=tf=10us IOUT=100mA COUT = Ceramic 4.7uF 6 5 4 3 2 1 0 200
Output Voltage VOUT(V)
Output Voltage
11)Load Transient ResponseTopt=25C)
R1170X151B 2 1.9 1.8 Output Current 1.7 1.6 1.5 1.4 0 20 40 60 80 100 Time t(us) 120 140 160 180 Output Voltage 60 40 20 0 200 tr=tf=3us VIN=2.5V CIN = Ceramic 10uF COUT =Ceramic 10uF 120 100 80
Rev. 1.10
Output Voltage VOUT(V)
- 14 -
R1170X301B 3.5 3.4 3.3 3.2 3.1 3 2.9 0 20 40 60 80 100 Time t(us) R1170X301B 3.5 3.4 3.3 3.2 3.1 3 2.9 0 20 40 60 80 100 Time t(us)
tr=tf=3us VIN=4V
CIN = Ceramic 10uF COUT =Ceramic 10uF 120 Output Current IOUT(mA) 120 100 Output Current 80 60 Output Voltage 40 20 0 200 Output Current IOUT(mA) 100 80 60 Output Voltage 40 20 0 200
Output Voltage VOUT(V)
Output Current
120
140
160
180
tr=tf=3us VIN=4V
CIN = Ceramic 10uF COUT =Ceramic 4.7uF
Output Voltage VOUT(V)
120
140
160
180
12)Stable Area(Topt=25C,VIN=Set Output Voltage+1V,CIN=Ceramic 10F)
CE Vout Ceramic Capacitor ESR IIout S.A. Spectrum Analyzer
R1170XXXXB
VIN Vin Ceramic Capacitor GND
As an output capacitor for this IC, Ceramic capacitor is recommendable. However, other low ESR type capacitor can be used with this IC. For your reference, noise level is tested with the circuit as shown above, and if the noise level is 40V or less than 40V, the ESR values are plotted as stable area. Upper limit is described in the next four graphs, or ESR vs. Output Current. (Hatched area is the stable area.)
Rev. 1.10
-15-
R1170X151B C OUT=Ceramic 10uF 100 10
ESROhm)
R1170X151B C OUT =Ceramic 4.7uF 100
10 ESROhm) 0 200 400 600 800 1
1
0.1 Output Current IOUT (mA) R1170X301B 100 COUT=Ceramic 10uF
0.1 0 200 400 600 800 Output Current IOUT(mA) R1170X301B 100 C OUT =Ceramic 4.7uF
ESROhm)
ESR(Ohm)
10
10
1
1
0.1 0 200 400 600 800 Output Current IOUT(mA)
0.1 0 200 400 600 800 Output Current I OUT (mA)
Rev. 1.10
- 16 -

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