G918 Datasheet, PDF (1/1 Pages) Global Mixed-mode Technology Inc – 300mA High PSRR, Low Noise, LDO Regulators

Global Mixed-mode Technology Inc.
G918
300mA High PSRR, Low Noise, LDO Regulators
Features
„ Low, 100µA No-Load Supply Current
„ Guaranteed 300mA Output Current
„ Dropout Voltage is 400mV @ 300mA Load
„ PSRR=45dB (f =10kHz ,300mA Load)
„ Over-Temperature Protection and Short-Circuit
Protection
„ Adjustable Mode: from 0.8V to 5.50V
„ Max. Supply Current in Shutdown Mode < 1µA
„ Stable with low cost ceramic capacitors
Applications
„ Notebook Computers
„ Cellular Phones
„ PDAs
„ Digital still Camera and Video Recorders
„ Hand-Held Devices
„ Audio Codec
General Description
The G918 series is a low supply current, high PSRR,
low noise, and low dropout linear regulator that comes
in a space saving SOT-23-5 package. The supply
current at no-load is 100µA. In the shutdown mode,
the maximum supply current is less than 1µA. Operat-
ing voltage range is from 2.5V to 6.0V. The
over-current protection limit is set at 750mA typical. An
over-temperature protection circuit is built-in in the
Device to prevent thermal overload. These power
saving features make the G918 series ideal for use in
the battery-powered applications such as notebook
computers, cellular phones, and PDA’s.
The G918 has one modes of operation. When an output
other than the preset value is needed, two external re-
sistors should be used as a voltage divider. The output
voltage is then adjusted by the resistor ratio.
Ordering Information
ORDER
NUMBER
MARKING
VOLTAGE
G918T11U
918Ax
Adjustable
G918T12U
918Bx
Adjustable
For other output voltage, please contact us at [e-mail]
Note: T1: SOT-23-5
1 & 2: Bonding Code
U: Tape & Reel
TEMP.
RANGE
-40°C~ +85°C
-40°C~ +85°C
PACKAGE
(Green)
SOT-23-5
SOT-23-5
Pin Configuration
G918 T11
IN 1
5 OUT
Typical Application Circuit
GND 2
SHDN 3
SOT-23-5
4 SET
SHDN 1
G918 T12
5 ^SET
＋
－ _BATTERY ^CIN
1µF
IN
OUT
G918
SET
SHDN
GND
OUTPUT
VOLTAGE
R1
R2
C_OUT
4.7µF
GND 2
IN 3
SOT-23-5
4 OUT
Adjustable mode
Ver: 0.2
Apr 20, 2011
TEL: [phone]
http://www.gmt.com.tw
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