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AME5287 - Rectified Step-Down Converter

Description

The AME5287 is a Synchronous Rectified Step-Down Converter with internal power MOSFETs.

It achieves 3A continuous output current over a wide switching frequency range with excellent load and line regulation.

Current mode operation provides fast transient response and eases of loop stabilization.

Features

  • l 3A Output Current l Stable with Low ESR Output Ceramic Capacitors l Pre-Regulator for Linear Regulators l Up to 95% Efficiency l Less than 1µA Shutdown Current l Wide Switching Frequency Range from 300KHz~2MHz l Thermal Protection l Cycle-by-Cycle Over Current Protection l Output Adjustable from 0.8V to VIN l Short Circuit Protection l Green Products Meet RoHS Standards VIN 3V~5V CIN 10µF C2 Optional L 1.5µH IN SW EN OFF ON AME5287 R1 6KΩ C1 680pF R3 8.2KΩ COMP FB GND FREQ RFREQ 18K.

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Datasheet Details

Part number AME5287
Manufacturer AME
File Size 506.99 KB
Description Rectified Step-Down Converter
Datasheet download datasheet AME5287 Datasheet

Full PDF Text Transcription

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AME AME5287 3A, 300KHz ~ 2MHz Synchronous Rectified Step-Down Converter n General Description The AME5287 is a Synchronous Rectified Step-Down Converter with internal power MOSFETs. It achieves 3A continuous output current over a wide switching frequency range with excellent load and line regulation. Current mode operation provides fast transient response and eases of loop stabilization. Internal soft-start minimizes the inrush supply current at startup. The circuit protection includes cycle-by-cycle current limiting, output short circuit frequency protection and thermal shutdown. In shutdown mode, the regulator reduces the current less than 1µA of supply current. This device is available in SOP-8/PP ,DFN-8 package with exposed pad for low thermal resistance.
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