TPS54020RUWT

TEXAS INSTRUMENTS  TPS54020RUWT  直流-直流开关降压逐步递减稳压器, 可调, 4.5V-17V输入, 600mV-5V输出, 10A输出, VQFN-15

The is a step-down SWIFT™ Converter with out-of-phase synchronization. The TPS54020 operates at continuous current mode CCM at higher load conditions and transitions to eco-mode while skipping pulses to boost the efficiency at light loads. Current limiting on both MOSFETs provides device and system protection. Cycle-by-cycle current limiting in the high-side MOSFET protects for overload situations. Low-side MOSFET zero current detection turns off the low-side MOSFET while operating under light loads. Three selectable current-limit thresholds allow a good fit for various applications. A hiccup or cycle-by-cycle overcurrent protection scheme is also selectable. Thermal shutdown protection disables switching when die temperature exceeds the thermal shutdown trip point and enables switching after the built-in thermal hysteresis and shutdown hiccup time. The SS pin controls the output voltage start-up ramp and allows for selectable soft-start times.

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Integrated 8 and 6mR MOSFETs

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Peak current-mode control

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Eco-mode™ pulse skip for higher efficiency

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Overcurrent protection for both MOSFETs

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Synchronizes to external clock

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Start-up into pre-biased outputs

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Over-temperature and overvoltage protection

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Adjustable soft-start and power sequencing

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Power-good output monitor for undervoltage and overvoltage

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SYNC_OUT function provides output clock signal 180° out-of-phase

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Supported by WEBENCH® software tool

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0.6V Voltage reference with ±1% accuracy