G966A Global Mixed-mode Technology Peak 3A, Low Dropout Regulator with Enable Features General Description The G966A is a high performance positive voltage regulator designed for use in applications requiring very low Input voltage and very low dropout voltage at up to 2 amps. It operates with a VIN as low as 1.4V and VPP voltage 5V with output voltage programmable as low as 0.8V. The G966A features ultra low dropout, ideal for applications where VOUT is very close to VIN. Additionally, the G966A has an enable pin to further reduce power dissipation while shutdown. The G966A provides excellent regulation over variations in line, load and temperature. The G966A provides a power OK signal to indicate if the voltage level of VO reaches 92% of its rating value. Adjustable Output Low to 0.8V Input Voltage as Low as 1.4V and VPP Voltage 5V 300mV Dropout @ 2A, VO 2.5V Over Current and Over Temperature Protection Enable Pin Low Reverse Leakage (Output to Input ) Power SOP-8 (FD) Packages with Thermal Pad ±2% Output Voltage VO Power OK Signal 2.5V Options by Setting ADJ Pin Below 0.2V and Adjustable Externally Using Resistors VO Pull Low Resistance when Disable VO Soft Start When Enable The G966A is available in the power SOP-8 (FD) package. It is available with 2.5V internally preset outputs that are also adjustable using external resistors. Applications Motherboards Peripheral Cards Network Cards Set Top Boxes Notebook Computers Ordering Information ORDER NUMBER TEMP. RANGE PACKAGE (Pb free/Green) -40°C~+85°C SOP-8 (FD) MARKING G966A-25ADJF11U 966A-25 Note: F1: SOP-8 (FD) 1:Bonding Code U : Tape & Reel e.g. 25 denotes the 2.5V output voltage Pin Configuration Typical Application Circuit G966A 10kΩ G966A VPP (5V) 1 8 GND VEN 2 7 ADJ 6 VO 5 NC POK VIN 3 VPP 4 Thermal Pad VPP POK VIN VEN VIN VIN VO VO R1 CPP 1µF C1 10µF GND ADJ C2 10µF SOP-8 (FD) R2 0.8 (R1+R2) Volts R2 R2<120kΩ is recommended VO = TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.8 Mar 07, 2012 1