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LD7241 - 5-Channel DC-DC Converter

Datasheet Summary

Description

The LD7241 includes 5-channel PWM DC/DC controller IC and a Shutter controller.

It can operate at 1MHz frequency and built in ON/OFF control, soft-start, power on/off sequence and output overload protection.

Features

  • 1.5V to 5V Battery Input Range.
  • All Power Switches Integrated.
  • All channels built with internal compensation.
  • Synchronous step-down Converter - Efficiency up to 95% - Duty Cycle up to 100%.
  • Synchronous Step-up Converter - Efficiency up to 95% - Output Overvoltage Protection - Truly disconnected from output during shutdown.
  • 1 WLED Driver.

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Datasheet preview – LD7241

Datasheet Details

Part number LD7241
Manufacturer Leadtrend
File Size 270.27 KB
Description 5-Channel DC-DC Converter
Datasheet download datasheet LD7241 Datasheet
Additional preview pages of the LD7241 datasheet.

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Full PDF Text Transcription

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LD7241 11/24/2008 5-Channel DC-DC Converter with 1 Channel Shutter Driver REV :00 General Description The LD7241 includes 5-channel PWM DC/DC controller IC and a Shutter controller. It can operate at 1MHz frequency and built in ON/OFF control, soft-start, power on/off sequence and output overload protection. Four channels have been integrated with MOSFETs and can achieve higher efficiency up to 90%~95% (CH1, CH2, CH3 and CH4). CH5 is a current source, ideally for 1WLED driver application. The LD7241 is also built with constant-current shutter driver. It optimizes overall efficiency and cost, and also reduces the board size. The LD7241 is available in a space-saving 5mm*5mm 40-pin QFN package. + Patented Features • 1.
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