Global Mixed-mode Technology Inc.
G9052
Dual, 300mA Low-Dropout Linear Regulators
Features
Two Low-Dropout-Voltage Regulators
Pin-Programmable Output Voltages
300mA Output Current for Each LDO
Independent Enable Control
Dropout Voltage is 90mV@ 100mA Load
Over-Temperature Protection and Short-Circuit
Protection
Max. Supply Current in Shutdown Mode < 1µA
Small Ceramic Output Capacitors
General Description
The G9052 is a dual, low supply current, low dropout
linear regulator that comes in a space saving
TDFN2X2-8 package. The supply current at no-load is
100µA. In the shutdown mode, the maximum supply
current is less than 1µA. The over-current protection
limit is set at 430mA typical. An over-temperature pro-
tection circuit is built-in in the G9052 to prevent ther-
mal overload. These power saving features make the
G9052 ideal for use in the battery-powered applica-
tions such as notebook computers, cellular phones,
and PDA’s.
The G9052 have two logic inputs that select one of
nine preset output-voltage combinations, eliminating
external 1% resistors. The G9052 configures output
voltages at VOUT1 and VOUT2 based on the state of
P1 and P2 at power-on. Subsequent changes to P1
and P2 do not change the output voltages unless the
supply power is cycled, or all EN inputs are simulta-
neously driven low to shut down the device. These
devices feature a shutdown function and are offered in
active low with auto discharge. The G9052 comes in a
space saving TDFN2X2-8 package.
Applications
Notebook Computers
Cellular Phones
PDAs
Digital still Camera and Video Recorders
Hand-Held Devices
Bar Code Scanners
Output-Voltage Programming
P1
OPEN
OPEN
OPEN
GND
GND
GND
VIN
VIN
VIN
P2
OPEN
GND
VIN
OPEN
GND
VIN
OPEN
GND
VIN
VOUT1
3.00
3.30
1.50
2.85
2.85
2.80
1.20
2.80
2.80
VOUT2
1.80
3.00
1.50
1.85
1.80
3.30
1.30
2.80
2.85
Ordering Information
ORDER
NUMBER
G9052RC1U
MARKING
9052
TEMP.
RANGE
-40°C
to +85°C
PACKAGE
(Pb free)
TDFN2X2-8
Note: RC: TDFN2X2-8
1: Bonding Code
U: Tape & Reel
Pin Configuration
Typical Application Circuit
VIN
G9052
VIN
IN
VOUT1
OUT1
C
OUT1
1µF
P1
P2
VIN
VIN
EN1
SHDN1
EN2
SHDN2
GND
VOUT2
OUT2
C
OUT2
1µF
G9052
VIN
EN1
P2
P1
1
2
3
4
Thermal
Pad
8
7
6
5
VOUT1
VOUT2
GND
EN2
C
IN
2.2µF
TDFN2X2-8
Note: Recommend connecting the
Thermal Pad to the GND for
excellent power dissipation.
Ver: 0.4
Jan 11, 2008
TEL: 886-3-5788833
http://www.gmt.com.tw
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