LM20242EVAL

36V, 2A PowerWise® Adjustable Frequency Synchronous Buck Regulator Evaluation Module

LM20242EVAL

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Overview

The LM20242 synchronous rectifier Buck evaluation board is designed to provide the design engineer with a fully functional Buck power converter based on Current Mode Control to evaluate the LM20242 switching regulator IC. The evaluation board provides a 3.3V output with 2A current capability. The input voltage ranges from 8V to 36V. The design operates at 300 kHz, a good compromise between conversion efficiency and solution size. The printed circuit board consists of 2 layers of 2 ounce copper on FR4 material with a thickness of 0.062 inches. This application note contains the evaluation board schematic, Bill-of-Materials (BOM) and a quick setup procedure. Refer to the LM20242 datasheet for complete circuit design information.

Features
  • 2A Output Current, 3.7A peak current
  • 130 mΩ/110 mW integrated power MOSFETs
  • 1.5% output voltage accuracy
  • Current Mode Control, selectable compensation
  • Resistor programmed, 1MHz capable oscillator
  • Synchronous rectifier with diode emulation
  • Adjustable output voltage down to 0.8V
  • Compatible with pre-biased loads
  • Programmable soft-start with external capacitor
  • Precision enable pin with hysteresis
  • OVP, UVLO inputs and PGOOD output
  • Internally protected with peak current limit, thermal shutdown and restart
  • Accurate current limit minimizes inductor size
  • Non-linear current mode slope compensation
  • eTSSOP-16 exposed pad package
AC/DC & DC/DC converters (integrated FET)
LM20242 4.5-36V, 2A Current Mode Synchronous Buck Regulator with Adjustable Frequency
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Evaluation board

LM20242EVAL/NOPB — 36V, 2A PowerWise® Adjustable Frequency Synchronous Buck Regulator Evaluation Module

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Technical documentation

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Type Title Date
* EVM User's guide AN-1694 LM20242 Evaluation Board (Rev. B) 05 May 2013
Certificate LM20242EVAL/NOPB EU Declaration of Conformity (DoC) 02 Jan 2019

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