TPS51120 Overview
The TPS51120 is a highly sophisticated dual, synchronous step-down controller. It is a full featured controller designed to run directly off a three- or fourcell Li-ion battery and provide high-power and 5-V and/or 3.3-V standby regulation for all the downstream circuitry in a notebook puter system. High-current, 100-mA, 5-V or 3.3-V on-board linear regulators have glitch-free switch over function to SMPS and can be...
TPS51120 Key Features
- 1 3.3-V and 5-V 100-mA Bootstrapped Standby Regulators with Independent Enables
- Selectable D-CAP™ Mode Enables Fast Transient Response Less than 100 ns
- Selectable Low Ripple Current Mode
- Less than 1% Internal Reference Accuracy
- Selectable PWM-only/Auto-skip Modes
- Low-side RDS(on) Loss-less Current Sensing
- RSENSE Accurate Current Sense Option
- Internal Soft-Start and Integrated VOUT Discharge
- Integrated 2-V Reference
- Adaptive Gate Drivers with Integrated Boost Diode