G922 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – High Input Voltage, High PSRR, Low Quiescent Current LDO Regulator

Global Mixed-mode Technology Inc.
G922
High Input Voltage, High PSRR, Low Quiescent
Current LDO Regulator
Features
„ Low Current Consumption , Typically 10μA
„ Output Voltage Accuracy ±2.5%
„ Output Adjusts from 1.24 to (V_IN-1)V
„ Low Dropout Voltage of 320mV @ I_O = 30mA
„ Stable with Ceramic or Tantalum Capacitors
„ Wide Operating range : 5V ~ 24V
„ Low Shutdown Current , Typically 1µA
„ Good Line Regulation and Load Regulation
Specifications
„ Thermal Shutdown and Current Limit Protec-
tion Embedded
„ SOT-23-5 and SOP-8 Package Available
General Description
The G922 is a highly accurate, low dropout regulator
with 100mA output driving capacity and ultra-low
ground current. The G922 can work in a wide opera-
tion range from 5V up to 24V. The quiescent current is
small even at high input voltage. The typical current
consumption is about 10μA. It is stable with either ce-
ramic or tantalum output capacitor, the minimum out-
put capacitor is only 2.2μF required. It is very suitable
for the battery-powered portable equipment, especially
the keep-alive system. The G922 can provide the
higher performance and a longer battery service life.
Applications
„ Keep-Alive Supply in Notebook and Portable
Computers
„ Logic Supply for High-Voltage Batteries
„ Automotive Electronics
„ Battery Powered Systems
„ 3-4 Cell Li-Ion Battery Input Range
Ordering Information
ORDER
NUMBER
MARKING
TEMP.
RANGE
G922T11U 922Ax -40°C to 85°C
G922T12U 922Bx -40°C to 85°C
G922P11U G922A -40°C to 85°C
Note: T1: SOT-23-5 P1: SOP-8
1or 2: Bonding Code
U: Tape & Reel
PACKAGE
(Green)
SOT-23-5
SOT-23-5
SOP-8
Pin Configuration
Typical Application Circuit
G922 T11
IN 1
5 OUT
GND 2
V_IN
EN 3
4 ADJ
G922
SOT-23-5
EN 1
8 GND
IN 2
7 GND
G922 T12
IN 1
GND 2
5 _EN
ADJ 3
OUT 4
SOP-8
6 GND
5 GND
1
IN
5
OUT
C_IN=1µF
2
G922
GND
4
ADJ
3
EN
EN
R1
C_BYPASS
V_OUT
C_OUT=2.2µF
R2
OUT 3
SOT-23-5
4 _ADJ
Note: *R2(Feed back resistor) should be smaller than 300kΩ
**C_BYPASS is optional
Ver: 1.4
Aug 03, 2009
TEL: [phone]
http://www.gmt.com.tw
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