GMT G9612DTEU, G9612CTEU, G9612BTEU, G9612ATEU Datasheet
Global Mixed-mode Technology Inc.
G9612
Low-Dropout, 500mA Linear Regulator with Reset
Features
500mA Output Current, with Foldback Current
Limiting
High Ripple Rejection
1.5% 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 89-5 package with 0.18 inch
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
hysteresis, keeping it asserted for time delay determined by external capacitor. The reset output is active low open-drain output. The detection threshold
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.
2
copper heat sink.
level with
CC
Ordering Information
PART
NUMBER
MARKING
REGULATOR
OUTPUT VOLTAGE
G9612ATEU G9612A 3.4 4.2 -40°C to +85°C SOT89-5L
G9612BTEU G9612B 3.3 4.2 -40°C to +85°C SOT89-5L
G9612CTEU G9612C 3.3 3.9 -40°C to +85°C SOT89-5L
G9612DTEU G9612D 2.5 4.2 -40°C to +85°C SOT89-5L
RESET THRESHOLD
VOLTAGE
TEMO.
RANGE
PACKAGE
Pin Configuration Typical Operation Circuit
V
V
CC
CC
R
R
pull-high
pull-high
10k
10k
Ω
Ω
V
V
IN
IN
1µF
1µF
C
C
D
D
G9612
G9612
GND
GND
RESET
RESET
V
V
OUT
OUT
OUTPUT
OUTPUT
VOLTAGE
VOLTAGE
10µF
10µF
(Tantalum or Aluminum)
(Tantalum or Aluminum)
RESET
RESET
RESET
5
5
5
1
1
1
V
V
V
IN
IN
IN
G9612
G9612
G9612
23
23
23
GND
GND
GND
SOT 89-5L
SOT 89-5L
SOT 89-5L
C
C
C
D
D
D
4
4
4
V
V
V
OUT
OUT
OUT
PIN-
Ver: 1.2
Feb 13, 2003
TEL: 886-3-5788833
http://www.gmt.com.tw
1
Global Mixed-mode Technology Inc.
G9612
Absolute Maximum Ratings
Supply Voltage (IN or OUT to GND)..….+0.3V to +6.5V
Input Voltage….…….………………………………+ 6.5V
Continuous Power Dissipation (T
Minimum footprint (
)…..…………………….178°C/W
θ
JA
= +25°C)…...…0.7W
A
With 400mil x 450mil heatsink copper..………..….1.0W
……………………………………………..…125°C/W
θ
JA
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress rat-
ings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of
the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability
Output Short-Circuit Duration…….……..…..……1 min
Operating Temperature Range……….-40°C to +85°C
Junction Temperature…………….……….……+160°C
Storage Temperature Range….….…-65°C to +160°C
Lead Temperature (soldering, 10sec)……...…+300°C
Electrical Characteristics
VIN=5V, CIN=1µF, C
at V
=5V.
IN
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Voltage VIN 2.5 6.0 V
Output Voltage (Note 1) V
Load Regulation
Line Regulation
Dropout Voltage (Note 2)
Parameter Tempco V
Ripple Rejection PSRR
Output Noise en 20Hz to 100kHz, I
Quiescent Current IQ 320 450 µA
Foldback Current Limit I
Foldback Voltage V
Thermal Shutdown Temperature TSD 160 °C
Thermal Shutdown Hysteresis
Reset Threshold V
Reset Threshold Hysteresis V
Reset Threshold Tempco 40 ppm/°C
CD Delay Pin Threshold Voltage V
CD Pin Sink Current ICD VCC=1.5V, VCD=0.5V 3 4.3 mA
CD Pin Pullup Resistance RD 100 200 400 kΩ
RESET Output Current Low IOL
RESET Function Operating Voltage VOP
Note 1: (VIN-V
OUT
limits.
Note 2: Dropout Voltage is (V
example, the G9612 is tested by measuring the V
100mV below the measured value. The difference (V
Note 3: Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
=10µF, TJ =TA=25°C (Note3), unless otherwise noted. Typical values for regulators are
OUT
G9612A 3.35 3.4 3.45
G9612B/C 3.25 3.3 3.35
OUT
V
G9612D 2.45 2.5 2.55
V
I
∆
LDR
V
∆
LNR
VDO I
∆
40 ppm/°C
OUT
LIM
FOLDBACK
TSD 30 °C
∆
TH-
HYS
TCD
) is limited to keep the product (I
- V
IN
) when V
OUT
=1mA to 500mA, VIN=V
OUT
(V
+0.5V) ≤ V
OUT
=500mA
OUT
f=120HZ, I
f=120HZ, I
V
OUT<VFOLDBACK
V
OUT>VFOLDBACK
6V, I
≤
IN
G9612A/B/C 560 610
G9612D 650 700
=30mA 70
OUT
=300mA 65
OUT
=30mA~500mA. 320 µV
OUT
260 400 580
650 900 1200
0.6 0.78 0.95 V
G9612A/B/D 4.11 4.2 4.29
G9612C 3.81 3.9 3.99
G9612A/B/D 150
G9612C 130
VCC = 5V 3.5 3.9 4.3 V
V
=2.5V, V
CC
RESET
sink current>10µA
x (VIN - V
OUT
falls to 100mV below its nominal value at VIN = V
OUT
RESET
OUT
=0.4V
OUT
at VIN = V
- V
IN
+1V 8 17 mV
OUT
=25mA -8 0.3 8 mV
OUT
mV
dB
RMS
mA
V
mV
8 11.5 mA
0.7 0.85 V
)) from exceeding the package power dissipation
+1V. For
OUT
+1V, then VIN is lowered until V
OUT
) is then measured and defined as ∆VDO.
OUT
OUT
falls
Ver: 1.2
Feb 13, 2003
TEL: 886-3-5788833
http://www.gmt.com.tw
2
Global Mixed-mode Technology Inc.
Typical Performance Characteristics
(VIN=5V,CIN=C
CONT Pin vs. Output Load transient
Load Transient Line Transient
=10µF, CONT=VIN, TJ=25°C, unless otherwise noted)
OUT
G9612
Line Transient Line Transient
Ver: 1.2
Feb 13, 2003
3
TEL: 886-3-5788833
http://www.gmt.com.tw
Loading...