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TPS51020
SLUS564B - JULY 2003 - REVISED DECEMBER 2003
DUAL, VOLTAGE MODE, DDR SELECTABLE, SYNCHRONOUS,
STEP DOWN CONTROLLER FOR NOTEBOOK SYSTEM POWER
FEATURES DESCRIPTION
D Wide Input Voltage Range: 4.5-V to 28-V The TPS51020 is a multi-function dual-
D Selectable Dual and DDR Modes synchronous step-down controller for notebook
D Selectable Fixed Frequency Voltage Mode system power. The part is specifically designed
for high performance, high efficiency applications
D Integrated Selectable Output Discharge
where the loss associated with a current sense
D Advanced Power Good Logic Monitors both resistor is unacceptable. The TPS51020 utilizes
Channels feed forward voltage mode control to attain high
D Selectable Autoskip Mode efficiency without sacrificing line response.
D Integrated Boot Strap Diodes Efficiency at light load conditions can be
maintained high as well by incorporating autoskip
D 180