G962 Global Mixed-mode Technology Inc. 2A Low Dropout Regulator with Enable Features General Description The G962 is a high performance positive voltage regulator designed for use in applications requiring very low dropout voltage at up to 2 Amps. Since it has superior dropout characteristics compared to regular LDOs, it can be used to supply 2.5V on motherboards or 1.5V, 1.8V on peripheral cards from the 3.3V supply thus allowing the elimination of costly heatsinks. An enable pin further reduces power dissipation while shut down. The G962 provides excellent regulation over variations in line, load and temperature. Adjustable Output from 1.2V to 4.8V Using External Resistors 1.5V, 1.8V and 2.5V options by Setting ADJ Pin Below 0.2V Fixed 2.5V, 3.3V and 5V Output for TO-252 Over current and over temperature protection 500mV dropout @2A Enable pin 10µA quiescent current in shutdown Output recovery mode in OTP Connect ADJ to GND for fixed output mode TO-252 and TO-252-5 Package The G962 is available with 1.5V, 1.8V, 2.5V, 3.3V and 5V internally preset outputs. Applications Battery powered systems Motherboards Peripheral cards Set Top Boxes Notebook Computers Ordering Information ORDER NUMBER (Pb free/Green) MARKING TEMP. RANGE PACKAGE G962-25T45Uf G962-25 -40°C ~ +85°C TO-252 G962-33T45Uf G962-33 -40°C ~ +85°C TO-252 G962-50T45Uf G962-50 -40°C ~ +85°C TO-252 G962-25T45D G962-25 -40°C ~ +85°C TO-252 G962-33T45D G962-33 -40°C ~ +85°C TO-252 G962-50T45D G962-50 -40°C ~ +85°C TO-252 G962-15ADJTJUf G962-15 -40°C ~ +85°C TO-252-5 G962-18ADJTJUf G962-18 -40°C ~ +85°C TO-252-5 G962-25ADJTJUf G962-25 -40°C ~ +85°C TO-252-5 Note: T4: TO-252 TJ:TO-252-5 U & D : Tape & Reel e.g. 18 denotes the 1.8V output voltage. Pin Configuration Typical Application Circuit 2 3 VIN GND VO VIN VIN VO VO R1 C1 4.7µF 3 4 ADJ R2 Top View 2 GND C2 10µF TO-252 1 G962 VEN VEN Top View 1 IENH R3 G962-XXT45 1.2 (R1+R2) Volts R2 R2=12kΩ is recommended R3 should be connected for current IENH restriction as VEN > VIN+0.3V VO = 5 VEN VIN GND VO ADJ TO-252-5 TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.4 Apr 11, 2011 1