G921 Global Mixed-mode Technology Inc. Low Quiescent Current Voltage Regulator Features General Description The G921 is a three terminal positive voltage regulator made using the CMOS process. The G921 can work in a wide operation range from 7V to 25V. The quiescent current is small even at high input voltage. The typical current consumption is about 4.5µA. It is very suitable for the battery-powered portable equipment, especially the keep-alive system. The G921 can provide the higher performance and a longer battery service life. Low current consumption (typically 4.5µA) Output voltage accuracy ±2.5% Drop-output voltage (typically) 2.5V @ 50mA loading 1.6V @10mA loading Wide operating range (max 25V) Internal over temperature protection Excellent line regulation Regulation <5mV @1mA loading VCC 7~25V Good load regulation Regulation: (typically) 40mV @VCC 7V loading 1µA to 30mA SOT-223 package available Ordering Information ORDER NUMBER MARKING TEMP. RANGE PACKAGE (Green) G921AT65U G921BT65U G921AT65 G921BT65 -40°C to 85°C -40°C to 85°C SOT-223 SOT-223 G921CT65U G921CT65 -40°C to 85°C SOT-223 Order Number Identification G921 X XX X X Packing Type Pin Option Package Type Voltage Option Part Number VOLTAGE OPTION PACKAGE TYPE T6 : SOT-223 A : 3.3V B : 3.5V C : 5.0V Package Type PIN OPTION 1 1 : VOUT 2 : VOUT 3 : GND 4 : GND 5 : VIN 6 : VIN 2 GND VIN VOUT VIN GND VOUT PACKING U : Tape & Reel 3 VIN GND VIN VOUT VOUT GND Typical Application Circuit VIN Top TopView View 1µF 1 2 VOUT G921 GND 10µF 3 SOT-223 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.2 Aug 31, 2010 1