G914X Global Mixed-mode Technology Inc. 300mA High PSRR, Low-Noise LDO Regulators Features General Description The G914X is a low supply current, high PSRR low dropout linear regulator that comes in a space saving SOT-23-5 package. The supply current at no-load is 55µA. In the shutdown mode, the maximum supply current is less than 1µA. Operating voltage range of the G914X is from 2.5V to 5.5V. The over-current protection limit is set at 500mA typical and 400mA minimum. An over- temperature protection circuit is built-in in the G914X to prevent thermal overload. These power saving features make the G914X ideal for use in the battery-powered applications such as notebook computers, cellular phones, and PDA’s. Ultra Low Output Noise⎯30µV (rms) Ultra Low 55µA No-Load Supply Current Ultra Low Dropout 70mV @ 50mA Load Guarantee 300mA Output Current Over-Temperature and Short-Circuit Protection Fixed Mode: 2.70V (G914A), 2.80V (G914B) 3.00V (G914C), 3.30V (G914D) 2.50V (G914E), 2.85V (G914F) 1.50V (G914G), 1.80V (G914H) Adjustable Mode: from 1.25V to 5.50V (G914Z) PSRR=70dB Max. Supply Current in Shutdown Mode < 1µA Stable with low cost ceramic capacitors Applications Notebook Computers Cellular Phones PDA Hand-Held Devices Battery-Powered Application Ordering Information ORDER NUMBER (Pb free/Green) MARKING VOLTAGE TEMP. RANGE PACKAGE G914Af G914Bf G914Cf G914Df G914Ef G914Ff G914Gf G914Hf G914Zf 4Axx 4Bxx 4Cxx 4Dxx 4Exx 4Fxx 4Gxx 4Hxx 4Zxx 2.70V 2.80V 3.00V 3.30V 2.50V 2.85V 1.50V 1.80V Adjustable -40°C~ +85°C -40°C~ +85°C -40°C~ +85°C -40°C~ +85°C -40°C~ +85°C -40°C~ +85°C -40°C~ +85°C -40°C~ +85°C -40°C~ +85°C SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5 SOT-23-5 Pin Configuration Typical Application Circuit G914A~G914H IN 1 GND 2 G914A~G914H 5 IN OUT OUTPUT VOLTAGE OUT ＋ BATTERY CIN － 1µF BYP CBYP 10nF GND SHDN 3 4 BYP SOT-23-5 Fixed mode G914Z G914Z IN IN 1 COUT 4.7µF SHDN 5 OUTPUT VOLTAGE OUT OUT R1 ＋ GND CIN 1µF BATTERY － 2 SET SHDN GND SHDN 3 4 R2 COUT 4.7µF SET SOT-23-5 Adjustable mode TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 2.1 Apr 20, 2011 1