G966L Global Mixed-mode Technology Peak 3A, Low Dropout Regulator with Enable Features General Description The G966L 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 G966L features ultra low dropout, ideal for applications where VOUT is very close to VIN. Additionally, the G966L has an enable pin to further reduce power dissipation while shutdown. The G966L provides excellent regulation over variations in line, load and temperature. The G966L 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) and TDFN3X3-10 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 The G966L is available in the power SOP-8 (FD) and TDFN3X3-10 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 MARKING OUTPUT VOLTAGE TEMP. RANGE PACKAGE (Green) G966L-25ADJF11U 966L-25 2.5V -40°C~+85°C SOP-8 (FD) G966L-25ADJRE1U 966LA 2.5V -40°C~+85°C TDFN3X3-10 Note: F1: SOP-8 (FD) RE: TDFN3X3-10 1: Bonding Code U: Tape & Reel Pin Configuration Typical Application Circuit G966L POK 1 8 GND VEN 2 7 ADJ G966L VIN 3 VPP 4 Thermal Pad 10kΩ VPP (5V) 6 VO 5 NC VPP POK VIN VEN SOP-8 (FD) VIN VIN VO VO R1 GND ADJ G966L VO(NC) 1 VO 2 VO 3 ADJ 4 POK 5 CPP 1µF 10 VPP Thermal Pad (GND) 9 C1 10µF C2 10µF R2 VIN(NC) 8 VIN 7 VIN 6 VEN 0.8 (R1+R2) Volts R2 R2<120kΩ is recommended VO = TDFN3X3-10 Note: Recommend connecting the Thermal Pad to the Ground for excellent power dissipation. TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 0.6 Oct 11, 2012 1