Description
Dual Power Supply Controller for Desktop Systems ADP3156
FUNCTIONAL BLOCK DIAGRAM
VCC DRIVE1 DRIVE2 PGND AGND PWRGD SENSE+ SENSE
DELAY NONOVERLAP DRIVE VREF +15% 2R CROWBAR IN OFF CMPI S R gm VREF REFERENCE VLDO 1.20V FB OFF-TIME CONTROL VIN SENSE
R VT1 VREF +5% VREF
5%
Features
- Active Voltage Positioning with Gain and Offset Adjustment Optimal Compensation for Superior Load Transient Response Fixed 1.5 V, 1.8 V and 2.5 V Output Versions Dual N-Channel Synchronous Driver On-Board Linear Regulator Controller Total Output Accuracy ؎1% Over Temperature High Efficiency, Current-Mode Operation Short Circuit Protection Overvoltage Protection Crowbar Protects Loads with No Additional External Components Power Good Output SO-16 Package.