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LC2251 - 1.5A 2MHz 5.5V Synchronous Buck Converter

General Description

The LC2251 is a high-efficiency, DC-to-DC stepdown switching regulators, capable of delivering up to 1.5A of output current.

The device operates from an input voltage range of 2.6V to 5.5V and provides an output voltage from 0.6V to VIN.

Key Features

  • High efficiency: up to 97%.
  • Up to 1.5A Max output current.
  • 2MHz switching frequency.
  • Low dropout 100% duty operation.
  • Internal compensation and soft-start.
  • Current mode control.
  • Reference 0.6V.
  • Logic control shutdown (IQ.

📥 Download Datasheet

Datasheet Details

Part number LC2251
Manufacturer LEADCHIP
File Size 763.70 KB
Description 1.5A 2MHz 5.5V Synchronous Buck Converter
Datasheet download datasheet LC2251 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LC2251 1.5A 2MHz 5.5V Synchronous Buck Converter DESCRIPTION The LC2251 is a high-efficiency, DC-to-DC stepdown switching regulators, capable of delivering up to 1.5A of output current. The device operates from an input voltage range of 2.6V to 5.5V and provides an output voltage from 0.6V to VIN. Working at a fixed frequency of 2MHz allows the use of small external components, such as ceramic input and output caps, as well as small inductors, while still providing low output ripples. This low noise output along with its excellent efficiency achieved by the internal synchronous rectifier, making LC2251 an ideal replacement for large power consuming linear regulators. Internal soft-start control circuitry reduces inrush current.