G964 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – 1A Low Dropout Regulator with Enable

Global Mixed-mode Technology Inc.
G964
1A Low Dropout Regulator with Enable
Features
„ Adjustable Output Low to 0.8V
„ Input Voltage as Low as 1.4V and VPP Voltage
5V
„ 150mV Dropout @ 1A, VO 1.2V
„ Over Current and Over Temperature Protection
„ Enable Pin
„ Low Reverse Leakage (Output to Input )
„ VO Stable with Ceramic Capacitor
„ ±2% Output Voltage
„ VO Power OK Signal
„ 1.2V, 1.5V, 1.8V and 2.5V Options by Setting
ADJ Pin Below 0.2V and Adjustable Externally
Using Resistors
„ VO Pull Low Resistance when Disable
„ SOP-8 Packages
Applications
„ Motherboards
„ Peripheral Cards
„ Network Cards
„ Set Top Boxes
„ Notebook Computers
General Description
The G964 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 1 amps. It operates with a V_IN as low as 1.4V and
VPP voltage 5V with output voltage programmable as
low as 0.8V. The G964 features ultra low dropout,
ideal for applications where V_OUT is very close to V_IN.
Additionally, the G964 has an enable pin to further
reduce power dissipation while shutdown. The G964
provides excellent regulation over variations in line,
load and temperature. The G964 provides a power OK
signal to indicate if the voltage level of VO reaches
92% of its rating value.
The G964 is available in the power SOP-8 package. It
is available with 1.2V, 1.5V, 1.8V and 2.5V internally
preset outputs that are also adjustable using external
resistors.
Ordering Information
ORDER
NUMBER
MARKING
G964-12ADJP11U
G964-12
G964-15ADJP11U
G964-15
G964-18ADJP11U
G964-18
G964-25ADJP11U
G964-25
Note: P1: SOP-8
1: Bonding Code
U : Tape & Reel
e.g. 18 denotes the 1.8V output voltage
TEMP.
RANGE
-40°C~+85°C
-40°C~+85°C
-40°C~+85°C
-40°C~+85°C
PACKAGE
(Pb free)
SOP-8
SOP-8
SOP-8
SOP-8
Pin Configuration
Typical Application Circuit
POK 1
VEN 2
VIN 3
VPP 4
G964
SOP-8
8 GND
7 ADJ
6 VO
5 NC
Ver: 0.1
Jul 26, 2006
VPP (5V)
VIN
VO
R1
C_PP
C1 C2
1µF 10µF 10µF
R2
G964
10kΩ
VPP POK
VIN
VEN
VIN
GND
VO
ADJ
0.8 (R1+R2)
VO =
Volts
R2
R2<120kΩ is recommended
1
TEL: [phone]
http://www.gmt.com.tw