G9612 Datasheet, PDF (1/8 Pages) Global Mixed-mode Technology Inc – Low-Dropout, 500mA Linear Regulator with Reset

Global Mixed-mode Technology Inc.
G9612
Low-Dropout, 500mA Linear Regulator with Reset
Features
„ 500mA Output Current, with Foldback Current
Limiting
„ High Ripple Rejection
„ ±2% Output Accuracy
„ ±2% Reset Threshold Accuracy
„ Externally Programmable Reset Time Delay
Generator
„ Internal 500mA P-Channel Pass Transistor
„ 320µA quiescent Current
„ Thermal Overload Protection
„ SOT89-5 Package
Applications
„ CD ROM or DVD ROM
„ Slim-Type CD/DVD
„ DVD Player
General Description
The G9612 are low-dropout, linear regulator with
reset function supply 3.4V, 3.3V or 2.5V output for
currents up to 500mA. They are available in a 1.0W
SOT 89-5L package with 0.18 inch² copper heat
sink. Typical dropouts are 560mV at 5V and 500mA.
Other features include foldback current limiting and
thermal overload protection.
The reset function in G9612 detect V_CC level with
hysteresis, keeping it asserted for time delay de-
termined by external capacitor. The reset output is
active low open-drain output. The detection thresh-
old are 3.9V or 4.2V.
The output is preset at 3.4V for the G9612A, 3.3V
for the G9612B/C, and 2.5V for G9612D. The reset
threshold is preset at 4.2V for G9612 A/B/D and
3.9V for G9612C.
Ordering Information
ORDER
NUMBER
ORDER NUMBER
(Pb free)
MARKING
REGULATOR
OUTPUT VOLTAGE
RESET THRESHOLD
VOLTAGE
TEMP.
RANGE
PACKAGE
G9612ATEU G9612ATEUf
9612AX
3.4
4.2
-40°C to +85°C SOT-89-5
G9612BTEU G9612BTEUf
9612BX
3.3
4.2
-40°C to +85°C SOT-89-5
G9612CTEU G9612CTEUf
9612CX
3.3
3.9
-40°C to +85°C SOT-89-5
G9612DTEU G9612DTEUf
9612DX
2.5
4.2
-40°C to +85°C SOT-89-5
Pin Configuration
Typical Operation Circuit
G9612
RESET
CD
5
4
1
2
3
VIN _GND ^VOUT
SOT-89-5
VCC
VIN
1µF
RESET
G9612
CD
VOUT
GND
Rpull-high
10kΩ
OUTPUT
VOLTAGE
10µF
(Tantalum or Aluminum)
Ver: 1.7
Apr 01, 2005
TEL: [phone]
http://www.gmt.com.tw
1