Datasheet Texas Instruments TPS54232DR — 数据表

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SLVS876D – NOVEMBER 2008 – REVISED NOVEMBER 2014 TPS54232 2-A, 28-V, 1-MHz, Step-Down DC-DC Converter With Eco-Mode™
1 Features 3 Description The TPS54232 is a 28-V, nonsynchronous buck
converter that integrates a low RDS(on) high-side
MOSFET. To increase efficiency at light loads, a
pulse-skipping Eco-Mode feature is automatically
activated. Furthermore, the 1-ОјA shutdown supply
current allows the device to be used in batterypowered 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-bycycle current limit scheme, frequency fold back, and
thermal shutdown protect the device and the load in
the event of an overload condition. The TPS54232 is
available in an 8-pin SOIC package. 1 3.5-V to 28-V Input Voltage Range …