TPS54231DR

TEXAS INSTRUMENTS  TPS54231DR.  芯片, 直流/直流转换器, 降压, 570KHZ, 2A, SOIC-8, 整卷

The is a non-synchronous Buck Converter integrates a low RDSon high-side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode™ feature is automatically activated. Furthermore, the 1µA shutdown supply current allows the device to be used in battery-powered applications. Current-mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle-by-cycle current limit scheme, frequency foldback and thermal shutdown protect the device and the load in the event of an overload condition.

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High efficiency at light loads with a pulse skipping Eco-mode™

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Adjustable slow-start limits inrush current

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Programmable UVLO threshold

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Overvoltage transient protection

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Cycle-by-cycle current limit, frequency fold back and thermal shutdown protection

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Supported by WEBENCH® software tool

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Integrated 80mR high-side MOSFET supports up to 2A continuous output current

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1µA Typical shutdown quiescent current

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Green product and no Sb/Br