G9188 Global Mixed-mode Technology Inc. 600mA High PSRR, Low Noise, LDO Regulators Features General Description The G9188 series is a low supply current, high PSRR, low noise, and low dropout linear regulator that comes in a space saving SOP-8 (FD) package. The supply current at no-load is 100µA. In the shutdown mode, the maximum supply current is less than 1µA. Operating 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 G9188 series ideal for use in the battery-powered applications such as notebook computers, cellular phones, and PDA’s. Low, 100µA No-Load Supply Current Guaranteed 600mA 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 The G9188 has one modes of operation. When an output other than the preset value is needed, two external resistors should be used as a voltage divider. The output voltage is then adjusted by the resistor ratio. Ordering Information ORDER NUMBER MARKING TEMP. RANGE PACKAGE (Green) G9188F11U G9188 -40°C~+85°C SOP-8 (FD) Note: F1: SOP-8 (FD) 1: Bonding Code U: Tape & Reel Pin Configuration Typical Application Circuit 2 G9188 NC 1 8 SHDN IN 2 7 NC ＋ NC 3 OUT 4 Thermal Pad OUT IN 6 GND 5 SET 4 OUTPUT VOLTAGE R1 CIN 1µF － BATTERY G9188 8 SET 5 COUT 4.7µF SHDN GND 6 R2 SOP-8 (FD) Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation. Adjustable mode TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.1 Sep 07, 2010 1