G9661

G9661
Global Mixed-mode Technology
Peak 3A, Low Dropout Regulator with Enable
Features
General Description
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The G9661 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 2 amps. It operates with a VIN as low as 1.4V and
VPP voltage 5V with output voltage programmable as
low as 0.8V. The G9661 features ultra low dropout,
ideal for applications where VOUT is very close to VIN.
Additionally, the G9661 has an enable pin to further
reduce power dissipation while shutdown. The G9661
provides excellent regulation over variations in line,
load and temperature. The G9661 provides a power
OK signal to indicate if the voltage level of VO reaches
92% of its rating value.
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Adjustable Output Low to 0.8V
Input Voltage as Low as 1.4V and VPP Voltage
5V
300mV Dropout @ 2A, VO 2.5V
Over Current and Over Temperature Protection
Enable Pin
Low Reverse Leakage (Output to Input )
TSOT-23-6, SOP-8(FD), MSOP-10(FD) and
TDFN3X3-10 Packages
±1.5% ADJ Voltage
VO Power OK Signal
2.5V Options by Setting ADJ Pin Below 0.2V
and Adjustable Externally Using Resistors
VO Pull Low Resistance when Disable
VO Soft Start When Enable
The G9661 is available in the power TSOT-23-6,
SOP-8(FD), MSOP-10(FD) and TDFN3X3-10 package.
It is available with 2.5V internally preset outputs that
are also adjustable using external resistors.
Applications
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Motherboards
Peripheral Cards
„ Network Cards
„ Set Top Boxes
„ Notebook Computers
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Ordering Information
ORDER
NUMBER
TEMP.
RANGE
MARKING
PACKAGE
(Green)
G9661-25ADJTP1U
961Ax
-40°C~+85°C
TSOT-23-6
G9661-25ADJF11U
9661-25
-40°C~+85°C
SOP-8 (FD)
G9661-25ADJF61U
G9661-25ADJRE1U
9661-25
9661A
-40°C~+85°C
-40°C~+85°C
MSOP-10 (FD)
TDFN3X3-10
Note:TP: TSOT-23-6
F1: SOP-8 (FD)
F6: MSOP-10 (FD)
1:Bonding Code
U : Tape & Reel
e.g. 25 denotes the 2.5V output voltage
RE: TDFN3X3-10
Pin Configuration
Typical Application Circuit
G9661
G9661
VO
GND
VIN
6 ADJ
1
2
POK
1
8
GND
VEN
2
7
ADJ
VIN
3
6
VO
VPP
4
5
NC
Thermal
Pad*
5 VPP
4 VEN
3
G9661
1
10
GND
NC
1
VEN
2
9
ADJ
VO
2
8
VO
VO
3
7
VO
ADJ
4
6
NC
POK
5
3
4
VPP
5
Thermal
Pad*
MSOP-10 (FD)
VPP
VIN
VIN
VO
VO
R1
CPP
1µF
10 VPP
Thermal
Pad*
(GND)
9
C1
10µF
8
VIN
VIN
6
VEN
10KΩ
VIN
GND
ADJ
C2
10µF
R2
NC
7
POK
VEN
G9661
POK
NC
VPP (5V)
SOP-8 (FD)
TSOT-23-6
VIN
G9661
0.8 (R1+R2)
Volts
R2
R2<120kΩ is recommended
VO =
TDFN3X3-10
* Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 0.93
Sep 10, 2013
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