Global Mixed-mode Technology Inc.
G9612
Low-Dropout, 500mA Linear Regulator with Reset
Features
500mA Output Current, with Foldback Current
Limiting
High Ripple Rejection
卤2%
Output Accuracy
卤2%
Reset Threshold Accuracy
Externally Programmable Reset Time Delay
Generator
Internal 500mA P-Channel Pass Transistor
320碌A quiescent Current
Thermal Overload Protection
SOT89-5 Package
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 inch
2
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.
Applications
CD ROM or DVD ROM
Slim-Type CD/DVD
DVD Player
Ordering Information
ORDER
NUMBER
G9612ATEU
G9612BTEU
G9612CTEU
G9612DTEU
ORDER NUMBER
REGULATOR
RESET THRESHOLD
MARKING
(Pb free)
OUTPUT VOLTAGE
VOLTAGE
G9612ATEUf
G9612BTEUf
G9612CTEUf
G9612DTEUf
9612AX
9612BX
9612CX
9612DX
3.4
3.3
3.3
2.5
4.2
4.2
3.9
4.2
TEMP.
RANGE
-40掳C to +85掳C
-40掳C to +85掳C
-40掳C to +85掳C
-40掳C to +85掳C
PACKAGE
SOT-89-5
SOT-89-5
SOT-89-5
SOT-89-5
Pin Configuration
Typical Operation Circuit
G9612
RESET
5
C
D
4
V
CC
R
pull-high
10k惟
V
IN
1碌F
RESET
G9612
C
D
1
V
IN
2
GND
3
V
OUT
GND
V
OUT
OUTPUT
VOLTAGE
10碌F
(Tantalum or Aluminum)
SOT-89-5
Ver: 1.7
Apr 01, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
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