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G923-450T1U Datasheet(PDF) 1 Page - Interpoint Corporation Company |
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G923-450T1U Datasheet(HTML) 1 Page - Interpoint Corporation Company |
1 / 9 page Ver: 1.1 Jan 19, 2006 TEL: 886-3-5788833 http://www.gmt.com.tw 1 G923 Global Mixed-mode Technology Inc. 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 G963 SET OUT SOT-23-5 G923 5 4 1 SHDN 2 3 GND IN IN OUT SHDN SET GND G923 + - BATTERY CIN 1µF R1 R2 C OUT 1µF OUTPUT VOLTAGE Adjustable mode IN OUT GND SET SHDN G923 C IN 1µF + _ BATTERY OUTPUT VOLTAGE COUT 1µF Fixed mode G963 SET OUT SOT-23-5 G923 5 4 1 SHDN 2 3 GND IN IN OUT SHDN SET GND G923 + - BATTERY CIN 1µF R1 R2 C OUT 1µF OUTPUT VOLTAGE Adjustable mode IN OUT GND SET SHDN G923 C IN 1µF + _ BATTERY OUTPUT VOLTAGE COUT 1µF Fixed mode |
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