TPS51220 - Texas Instruments

TPS51220 Notebook System Power Controller

The TPS51220 is a dual synchronous buck regulator controller with 2 LDOs. It is optimized for 5-V/3.3-V system controller, enabling designers to cost effectively complete 2-cell to 4-cell notebook system power supply. The TPS51220 supports high efficiency, fast transient response and 99% duty cycle operation. It supports supply input voltage ranging from 4.5.

Features

1
•2 Input Voltage Range: 4.5 V to 28 V
• Output Voltage Range: 1 V to 12 V
• Selectable Light Load Operation (Continuous / Auto Skip / Out-Of-Audio™ Skip)
• Programmable Droop Compensation
• Voltage Servo Adjustable Soft Start
• 200 kHz to 1 MHz Fixed Frequency PWM
• Selectable Current/ D-CAP™ Mode Architecture
• 180° Phase Shift Between Channels
• Resistor or Inductor DCR Current Sensing
• Powergood Output for Each Channel
• OCL/OVP/UVP/UVLO Protections (OVP Disable Option)
• Thermal Shutdown (Non-Latch)
• Output Discharge Function (Disable Option)
• Integrated Boot Strap MOSFET Switch
• QF.