Global Mixed-mode Technology Inc.
G914X
300mA High PSRR, Low-Noise LDO Regulators
Features
General Description
The G914X is a low supply current, high PSRR low
dropout linear regulator that comes in a space saving
SOT-23-5 package. The supply current at no-load is
55µA. In the shutdown mode, the maximum supply
current is less than 1µA. Operating voltage range of
the G914X is from 2.5V to 5.5V. The over-current pro-
tection limit is set at 500mA typical and 400mA mini-
mum. An over- temperature protection circuit is built-in
in the G914X to prevent thermal overload. These
power saving features make the G914X ideal for use
in the battery-powered applications such as notebook
computers, cellular phones, and PDA’s.
Ultra Low Output Noise⎯30µV (rms)
Ultra Low 55µA No-Load Supply Current
Ultra Low Dropout 70mV @ 50mA Load
Guarantee 300mA Output Current
Over-Temperature and Short-Circuit Protection
Fixed Mode: 2.70V (G914A), 2.80V (G914B)
3.00V (G914C), 3.30V (G914D)
2.50V (G914E), 2.85V (G914F)
1.50V (G914G), 1.80V (G914H)
Adjustable Mode: from 1.25V to 5.50V (G914Z)
PSRR=70dB
Max. Supply Current in Shutdown Mode < 1µA
Stable with low cost ceramic capacitors
Applications
Notebook Computers
Cellular Phones
PDA
Hand-Held Devices
Battery-Powered Application
Ordering Information
ORDER
NUMBER
G914A
G914B
G914C
G914D
G914E
G914F
ORDER NUMBER
TEMP.
RANGE
MARKING
VOLTAGE
PACKAGE
(Pb free)
G914Af
G914Bf
G914Cf
G914Df
G914Ef
G914Ff
G914Gf
G914Hf
G914Zf
4Axx
4Bxx
4Cxx
4Dxx
4Exx
4Fxx
4Gxx
4Hxx
4Zxx
2.70V
2.80V
3.00V
3.30V
2.50V
2.85V
1.50V
1.80V
Adjustable
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
-40°C~ +85°C
-40°C~ +85°C
-40°C~ +85°C
-40°C~ +85°C
-40°C~ +85°C
-40°C~ +85°C
-40°C~ +85°C
-40°C~ +85°C
-40°C~ +85°C
G914G
G914H
G914Z
Pin Configuration
Typical Application Circuit
G914A~G914H
G914A~G914H
OUTPUT
VOLTAGE
IN
OUT
1
2
3
5
OUT
IN
GND
+
-
COUT
4.7µF
CIN
SHDN
GND
1µF
BYP
BATTERY
CBYP
10nF
SHDN
4
BYP
SOT-23-5
G914Z
Fixed mode
G914Z
IN
OUTPUT
VOLTAGE
OUT
SET
1
2
3
5
OUT
IN
GND
R1
R2
+
CIN
1µF
-
COUT
4.7µF
BATTERY
SHDN
GND
4
SET
SHDN
SOT-23-5
Adjustable mode
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.8
Jul 24, 2007
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