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G923-500T1U 参数 Datasheet PDF下载

G923-500T1U图片预览
型号: G923-500T1U
PDF下载: 下载PDF文件 查看货源
内容描述: 300毫安高PSRR LDO稳压器 [300mA High PSRR LDO Regulators]
分类和应用: 稳压器
文件页数/大小: 9 页 / 383 K
品牌: INTERPOINT [ INTERPOINT CORPORATION COMPANY ]
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Global Mixed-mode Technology Inc.
G923
300mA High PSRR LDO Regulators
Features
Low, 90µA No-Load Supply Current
Guaranteed 300mA Output Current
Dropout Voltage is 200mV @ 150mA Load
PSRR=65dB @ 120Hz
Over-Temperature Protection and Short-Circuit
Protection
Two Modes of Operation ----
Fixed Mode: 1.50V~5.00V
Adjustable Mode: from 1.25V to 5.50V
Max. Supply Current in Shutdown Mode < 1µA
Low Output Noise at 224µV
RMS
Stable with low cost ceramic capacitors
General Description
The G923 is a low supply current, high PSRR, and low
dropout linear regulator that comes in a space saving
SOT-23-5 package. The supply current at no-load is
90µA. In the shutdown mode, the maximum supply
current is less than 1µA. Operating voltage range of
the G923 is from 2.50V to 5.50V. The over-current
protection limit is set at 550mA typical. An over- tem-
perature protection circuit is built-in in the G923 to
prevent thermal overload. These power saving fea-
tures make the G923 ideal for use in the bat-
tery-powered applications such as notebook com-
puters, cellular phones, and PDA’s.
The G923 has two modes of operation. When the SET
pin is connected to ground, its output is a pre-set value:
1.50V~5.00V. There is no external component needed
to decide the output voltage. When an output other
than the preset value is needed, two external resistors
should be used as a voltage divider. The output volt-
age is then decided by the resistor ratio. The G923
comes in a space saving SOT-23-5 package.
Applications
Notebook Computers
Cellular Phones
PDAs
Digital still Camera and Video Recorders
Hand-Held Devices
Audio Codec
Pin Configuration
IN
OUT
OUTPUT
VOLTAGE
C
OUT
C
BATTERY
SHDN
1
5
SET
G923
IN
_
1µF
SHDN
GND
SET
1
µ
F
Fixed mode
GND
2
G923
G963
IN
3
4
OUT
IN
OUT
R1
OUTPUT
VOLTAGE
SOT-23-5
BATTERY C
IN
1µF
G923
SHDN
GND
SET
R2
C
OUT
1µF
Adjustable mode
Ver: 1.1
Jan 19, 2006
TEL: 886-3-5788833
http://www.gmt.com.tw
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