G966 Global Mixed-mode Technology 2A Low Dropout Regulator with Enable Features General Description The G966 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 G966 features ultra low dropout, ideal for applications where VOUT is very close to VIN. Additionally, the G966 has an enable pin to further reduce power dissipation while shutdown. The G966 provides excellent regulation over variations in line, load and temperature. The G966 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 1.2V 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 Applications The G966 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. Motherboards Peripheral Cards Network Cards Set Top Boxes Notebook Computers Ordering Information ORDER NUMBER (Pb free/Green) MARKING G966-25ADJF1Uf G966-25 TEMP. RANGE PACKAGE -40°C~+85°C SOP-8 (FD) Note: F1: SOP-8 (FD) U : Tape & Reel e.g. 25 denotes the 2.5V output voltage Pin Configuration Typical Application Circuit G966 10kΩ VPP (5V) VPP POK VIN VEN G966 POK 1 VEN 2 VIN 3 VPP 4 Thermal Pad 8 GND 7 ADJ 6 VO 5 NC VIN VIN VO VO R1 CPP 1µF C1 10µF GND ADJ C2 10µF R2 SOP-8 (FD) 0.8 (R1+R2) Volts R2 R2<120kΩ is recommended VO = TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.7 Oct 31, 2011 1