GENERAL DESCRIPTION
Dropout voltage is guaranteed to be at maximum of 1.5V with the maximum output current. Current limit and thermal protection provide protection against any overload condition that would create excessive junction temperatures. FEATURES
1.5V Max. Dropout Voltage at 1.5A Output Current. Fast Transient Response. Extremely Tight Line and Load Regulation. Current Limiting and Thermal Protection. Adjustable Output Voltage or Fixed 1.5V, 1.8V,2.5V,3.3V,5.0V. APPLICATIONS
Mother Board I/O Power Supplies Microprocessor Power Supplies. High Current Regulator Post Regulator for Switching Supply. Notebook Computers BLOCK DIAGRAM Ver1.0 1 OB2269 LD1086 PIN DESCRIPTIONS ADJ PIN - Providing VREF=1.25V (typ.) for adjustable VOUT. VREF=VOUT-VADJ and IADJ=60u A (typ.) /GND PIN- Power ground. VOUT PIN - Adjustable output voltage. VIN PIN - Power Input. TYPICAL APPLICATION CIRCUIT VREF=VOUT - VADJ=1.25V (typ.) VOUT=VREF x (1+RF2/RF1)+ IADJ x RF2 IADJ=60uA ( typ.) (1) C1 needed if device is far away from filter capacitors. (2) C2 required for stability.
HOTCHIP
