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Número de pieza | G923 | |
Descripción | High PSRR LDO Regulators | |
Fabricantes | Interpoint Corporation Company | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de G923 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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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 224µVRMS
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 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.
Pin Configuration
SHDN 1
5 SET
GND 2
G923
G963
IN 3
SOT-23-5
4 OUT
+ CIN
_ 1µF
BATTERY
IN OUT
G923
SHDN
GND
SET
Fixed mode
OUTPUT
VOLTAGE
COUT
1µF
+
- BATTERY C1µINF
IN OUT
G923
SET
SHDN
GND
R1
R2
OUTPUT
VOLTAGE
1CµOFUT
Adjustable mode
Ver: 1.1
Jan 19, 2006
TEL: 886-3-5788833
http://www.gmt.com.tw
1
1 page Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
Shuntdown Pin Delay
G923
Shuntdown Pin Delay
Dropout vs IO
500
400
300
200
100
0
0 50 100 150 200 250 300
Io (mA)
Recommended Minimum Footprint
SOT-23-5
Ver: 1.1
Jan 19, 2006
TEL: 886-3-5788833
http://www.gmt.com.tw
5
5 Page |
Páginas | Total 9 Páginas | |
PDF Descargar | [ Datasheet G923.PDF ] |
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