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Low Dropout Regulator for Tech Devices

The G9661 is a high performance positive voltage regulator with an adjustable output between 0.8V and 1.4V. It can operate with an input voltage as low as 1.4V and has a low dropout of 300mV at 2A. It features overcurrent and overtemperature protection, soft start, and enable functionality to reduce power dissipation during shutdown. The G9661 is available in small package sizes like TSOT-23-6 and SOP-8 and is suitable for applications that require close input/output voltage values like motherboards, networking equipment, and computers.

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luis alberto perez montero
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523 views1 page

Low Dropout Regulator for Tech Devices

The G9661 is a high performance positive voltage regulator with an adjustable output between 0.8V and 1.4V. It can operate with an input voltage as low as 1.4V and has a low dropout of 300mV at 2A. It features overcurrent and overtemperature protection, soft start, and enable functionality to reduce power dissipation during shutdown. The G9661 is available in small package sizes like TSOT-23-6 and SOP-8 and is suitable for applications that require close input/output voltage values like motherboards, networking equipment, and computers.

Uploaded by

luis alberto perez montero
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Global Mixed-mode Technology G9661

Peak 3A, Low Dropout Regulator with Enable


Features General Description
„ Adjustable Output Low to 0.8V The G9661 is a high performance positive voltage
„ Input Voltage as Low as 1.4V and VPP Voltage regulator designed for use in applications requiring
5V very low Input voltage and very low dropout voltage at
„ 300mV Dropout @ 2A, VO 2.5V up to 2 amps. It operates with a VIN as low as 1.4V and
„ Over Current and Over Temperature Protection VPP voltage 5V with output voltage programmable as
„ Enable Pin
low as 0.8V. The G9661 features ultra low dropout,
„ Low Reverse Leakage (Output to Input )
ideal for applications where VOUT is very close to VIN.
„ TSOT-23-6, SOP-8(FD), MSOP-10(FD) and
TDFN3X3-10 Packages Additionally, the G9661 has an enable pin to further
„ ±1.5% ADJ Voltage reduce power dissipation while shutdown. The G9661
„ VO Power OK Signal provides excellent regulation over variations in line,
„ 2.5V Options by Setting ADJ Pin Below 0.2V load and temperature. The G9661 provides a power
and Adjustable Externally Using Resistors OK signal to indicate if the voltage level of VO reaches
„ VO Pull Low Resistance when Disable 92% of its rating value.
„ VO Soft Start When Enable
The G9661 is available in the power TSOT-23-6,
Applications SOP-8(FD), MSOP-10(FD) and TDFN3X3-10 package.
„ Motherboards It is available with 2.5V internally preset outputs that
„ Peripheral Cards are also adjustable using external resistors.
„ Network Cards
„ Set Top Boxes
„ Notebook Computers

Ordering Information
ORDER TEMP. PACKAGE
MARKING
NUMBER RANGE (Green)
G9661-25ADJTP1U 961Ax -40°C~+85°C TSOT-23-6
G9661-25ADJF11U 9661-25 -40°C~+85°C SOP-8 (FD)
G9661-25ADJF61U 9661-25 -40°C~+85°C MSOP-10 (FD)
G9661-25ADJRE1U 9661A -40°C~+85°C TDFN3X3-10
Note:TP: TSOT-23-6 F1: SOP-8 (FD) F6: MSOP-10 (FD) RE: TDFN3X3-10
1:Bonding Code
U : Tape & Reel
e.g. 25 denotes the 2.5V output voltage

Pin Configuration Typical Application Circuit


G9661 G9661
POK 1 8 GND
VO 1 6 ADJ G9661
10KΩ
VEN 2 7 ADJ
Thermal VPP (5V) VPP POK VIN
GND 2 5 VPP
VIN 3 Pad* 6 VO VEN

4 VEN VIN VIN


VIN 3 VPP 4 5 NC GND
VO VO
TSOT-23-6 SOP-8 (FD) ADJ
R1

G9661 G9661
CPP C1 C2
1µF 10µF 10µF
POK 1 10 GND NC 1 10 VPP
R2
VEN 2 9 ADJ VO 2 9 NC
Thermal
NC 3 Thermal 8 VO VO 3 8 VIN
Pad*
Pad*
(GND)
VIN 4 7 VO ADJ 4 7 VIN
VPP 5 6 NC POK 5 6 VEN 0.8 (R1+R2)
VO = Volts
R2
MSOP-10 (FD) TDFN3X3-10 R2<120kΩ is recommended
* Recommend connecting the Thermal Pad to the Ground for excellent power dissipation.

Ver: 0.93 TEL: 886-3-5788833


Sep 10, 2013 http://www.gmt.com.tw
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