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Global Mixed-mode Technology

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G972 Datasheet

5A Low Dropout Regulator

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Global Mixed-mode Technology
G972
5A Low Dropout Regulator with Enable
Features
„ Adjustable Output Low to 0.8V
„ Input Voltage as Low as 1.1V and VPP Voltage
5V
„ 200mV Dropout @ 5A, VO 1.2V
„ Over Current and Over Temperature Protection
„ Enable Pin
„ Low Reverse Leakage (Output to Input )
„ Power SOP-8 (FD) Packages with Thermal Pad
„ ±2% Output Voltage
„ VO Power OK Signal
„ VO Pull Low Resistance when Disable
„ VO Soft Start when Enable
Applications
„ Motherboards
„ Peripheral Cards
„ Network Cards
„ Set Top Boxes
„ Notebook Computers
Ordering Information
ORDER
NUMBER
G972F11U
Note: F1: SOP-8 (FD)
1: Bonding Code
U: Tape & Reel
MARKING
G972
General Description
The G972 is a high performance positive voltage
regulator designed for use in applications requiring
very low Input voltage and very low dropout voltage at
up to 5 amps. It operates with VPP voltage 5V and
output voltage programmable as low as 0.8V. The
G972 features ultra low dropout, ideal for applications
where VOUT is very close to VIN. Additionally, the G972
has an enable pin to further reduce power dissipation
while shutdown. The G972 provides excellent regula-
tion over variations in line, load and temperature. The
G972 provides a power OK signal to indicate if the
voltage level of VO reaches 92% of its rating value.
The G972 is available in the power SOP-8 (FD) pack-
age. It is adjustable using external resistors.
TEMP.
RANGE
-40°C~+85°C
PACKAGE
(Green)
SOP-8 (FD)
Pin Configuration
Typical Application Circuit
GND 1
G972
8 VEN
ADJ 2
VO 3
Thermal
Pad
7 POK
6 VPP
VO 4
5 VIN
Top View
SOP-8 (FD)
* Thermal Pad can be connected to VIN
** Connect Thermal Pad to ground plate will
have better thermal performance
VPP (5V)
VIN
VO
C1 R1
(optional)
CPP
1µF
CIN
22µF
CO
22µF
R2
G972
VPP POK
VEN
VIN
GND
VO
ADJ
10kΩ
VIN
1. VO = 0.8 (R1+R2) Volts, R2<120kΩ is recommended
R2
2. C1 is not necessary. VO is also stable if C1 = 22pF~150pF
Ver: 0.8
Dec 26, 2011
TEL: 886-3-5788833
http://www.gmt.com.tw
1


Part Number G972
Description 5A Low Dropout Regulator
Maker Global Mixed-mode Technology
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