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Ordering number : ENA1461
Bi-CMOS LSI
LV59012M
Overview
For Potable Electronic Devices
1.2V Constant-Voltage Power Supply IC
The LV59012M is a constant-voltage power supply IC for potable electronic devices incorporating the output ON/OFF function, which offers advantages such as small current drain when output OFF and saves power dissipation of the equipment.
Features
* Output voltage ON/OFF function with the control pin (active, high) * Output current of 1A obtainable * Small current drain (1A max) when output OFF and optimum for power saving * MFP8 (200mil) package, ensuring easy mounting design * Full compliment of protection circuits incorporated (including overcurrent protection, thermal protection)
Specifications
Absolute Maximum Ratings at Ta = 25C
Parameter Maximum power supply Symbol VIN1 VIN2 Allowable power dissipation Operating Temperature Storage Temperature Pd max Topr Tstg VIN1 pin VIN2 pin Mounted on a specified board.* Conditions Ratings 6.2 6.2 1.45 -30 to +85 -40 to +150 Unit V V W C C
* Specified board: 50mm x 50mm x 1.6mm, glass epoxy both sides
Recommended Operating Ranges at Ta = 25C
Parameter power supply Symbol VIN1 VIN2 Output current IO VIN1 pin VIN2 pin Conditions Ratings 1.6 to 6 1.8 to 6 0 to 1 Unit V V A
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42809 MS 20090413-S00007 No.A1461-1/7
LV59012M
Electrical Characteristics at Ta = 25C, VIN1 = VIN2 = 3V
Parameter Current drain Standby current Output Output voltage Dropout voltage 1 VO Vdrop1_1 Vdrop1_2 Dropout voltage 2 Vdrop2_1 Vdrop2_2 Load Regulation Line Regulation Voltage temperature coefficient Ripple Rejection Output Noise Voltage CTL pin High level voltage Low level voltage Input current * Design guarantee VCTLH VCTLL ICTL VCTL = 6V 1.5 0 5 0.3 8.5 V V A VLD VLN VT VRL VON IO = 10mA IO = 1A, VIN1 = VIN2 IO = 0.3A, VIN1 = VIN2 IO = 1A, VIN2 = 3V, VIN1 dropout voltage IO = 0.3A, VIN2 = 3V, VIN1 dropout voltage IO = 5mA to 1A VIN1 = VIN2 = 1.8V to 6V, IO = 10mA Ta = -30 to +85C, IO = 10mA IO = 10mA, VRpp=1V, fRR = 1kHz IO = 10mA, 20Hz < f < 20kHz * * * 10 10 100 70 60 1.176 1.2 1.224 1 0.6 1 0.4 50 50 V V V V V mV mV ppm/C dB Vrms Symbol IVIN ISTBY LDO ON CTL = Low Conditions min Ratings typ 110 max 160 1 A A Unit
Package Dimensions
unit : mm (typ) 3372
2.0
Pd max -- Ta
Specified board: 50x50x1.6mm3 glass epoxy both sides.
TOP VIEW 5.0 8
SIDE VIEW
BOTTOM VIEW
Allowable power dissipation, Pd max -- W
(3.4)
1.5 1.45
0.43
(2.6)
4.4
6.0
1.0
1 (0.65)
2 0.35 1.27 0.15
0.5
0.58
1.7 MAX
SIDE VIEW
0 -30 -20
0
20
40
60
80 85
100
0.05
(1.5)
Ambient temperature, Ta -- C
SANYO : MFP8(200mil)
No.A1461-2/7
LV59012M
Pin Assignment
VIN1 1 NC 2 8 GND 7 NC
LV59012M
VIN2 3 CTL 4 Top view 6 VO 5 NC
Specified Board (Top side)
Specified Board (Bottom side)
Block Diagram
VIN1 VIN2 1 3 6 VO
4.7F
10F
Signal power supply
CTL
4
Current Limit
BANDGAP Reference
Thermal Protection
8
GND
No.A1461-3/7
LV59012M
Pin Function
Pin No. 1 Pin name VIN1 Function Power system supply pin. Equivalent circuit
1 VIN1
6 VO
6 VO Output voltage pin.
300
8 GND
2 3 NC VIN2 No contact. Signal system power supply pin.
VIN2 3
4
CTL
ON/OFF control pin.
10k
CTL 4
1.5M
GND 8
5 7 8 NC NC GND No contact. No contact. Ground pin.
120
IVIN -- Ta
VIN1 = VIN2 = 3V
0.100
ISTBY -- Ta
VIN1 = VIN2 = 3V
Standby current, ISTBY -- A
Current drain, IVIN -- A
110
0.075
100
0.050
90
0.025
80 -40
-20
0
20
40
60
80
100
0 -40
-20
0
20
40
60
80
100
Ambient temperature, Ta -- C
1.5
Ambient temperature, Ta -- C
8
VLN -- Ta
VIN1 = VIN2 = 1.8 to 6V IO = 10mA
VLD -- Ta
VIN1 = VIN2 = 3V IO = 5mA to 1A
7 1.25
Load regulation, VLD -- mV
Line regulation, VLN -- mV
6
1.0
5
4
0.75
3
0.5 -40
-20
0
20
40
60
80
100
2 -40
-20
0
20
40
60
80
100
Ambient temperature, Ta -- C
Ambient temperature, Ta -- C
No.A1461-4/7
LV59012M
1.2100
VO -- Ta
CLT threshold voltage, VCLTth -- V
1.25
VCLTth -- Ta
VIN1 = VIN2 = 3V
VIN1 = VIN2 = 3V IO = 10mA
Output voltage, VO -- V
1.2075
1.00
1.2050
0.75
1.2025
1.2000 -40
-20
0
20
40
60
80
100
0.50 -40
-20
0
20
40
60
80
100
Ambient temperature, Ta -- C
6
Ambient temperature, Ta -- C
2.0
ICTL -- Ta
VCL = 6V
VO -- IO
VIN1 = VIN2 = 3V
CLT input current, ICLT -- A
Output voltage, VO -- V
4.5
1.5
3.0
1.0
1.5
0.5
0 -40
-20
0
20
40
60
80
100
0
0
0.5
1.0
1.5
2.0
Ambient temperature, Ta -- C
100
VRL -- fRR
VRpp = 1V IO = 10mA
Output current, IO -- A
Ripple rejection, VRL -- dB
80
60
40
20
0 0.01
23
5 7 0.1
23
571
23
5 7 10
23
5 7 100
Ripple frequency, fRR -- kHz
Output voltage, VO -- V Output current, IO -- A Output voltage, VO -- V Output current, IO -- A
800 600 400 200 0 1.3 1.2 1.1
Load response
100mA 600mA
200 150 100 50 0 1.22 1.20 1.18
Load response
50mA 150mA
t -- s
20s / div
t -- s
20s / div
No.A1461-5/7
LV59012M
Output voltage, VO -- V Input voltage, VIN -- V
6
Input response
tr,tf = 5s IO = 100mA
5 4 3 1.25 1.20 1.15 1.1 1.1
t -- S
100S / div
CTL ON
Output voltage, VO -- V CTL input voltage, VCLT -- V Output voltage, VO -- V CTL input voltage, VCLT -- V
4 2 0
CTL OFF
4 2 0
IO = 0mA CO = 4.7F
IO = 0mA CO = 4.7F
1.5 1.0 0.5 0
1.5 1.0 0.5 0
t -- ms
0.2ms / div
t -- ms
1ms / div
No.A1461-6/7
LV59012M
Radiation Pad * Radiation pad is high impedance and connected with a substrate of IC. * Use radiation pad by GND or opening.
VIN1 and VIN2 The dropout voltage can be lowered by making VIN1 and VIN2 another power supply within a some current range. Refer to Figure 1.
1.5
Vdrop max -- IO
(1) VIN1 and VIN2 are connected. (2) VIN1 and VIN2 are another power supplies. (VIN2 = 3V)
Maximum dropout voltage, Vdrop max -- V
1.0
0.6 0.5 0.4
(1)
(2)
0
0
300
530 600
900 1000
1200
Output current, IO -- mA
Figure 1
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This catalog provides information as of April, 2009. Specifications and information herein are subject to change without notice. PS No.A1461-7/7

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