Adjustable output voltage, 200-W SEPIC power supply reference design
PMP22270
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Key Document

Description

This 200-W SEPIC converter reference design supplies a non-isolated adjustable 5-V to 200-V output voltage with a maximum output current of 4 A. Output voltage is set using a 0% to 100% duty-cycle, pulse-width-modulation (PWM) input.

Features
  • Provides 3x to 5x higher output power than traditional SEPICs
  • Achieves a peak efficiency of greater than 93% (at 100-V output, 200 W)
  • Controls the output voltage with PWM input from processor
  • Enables low-input-ripple voltage and low EMI compared to flyback converters

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Schematic/Block Diagram

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Design Guide

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Design Files

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Parametrics
 PMP22270.1
(Output Voltage 1)
Vin (Min) (V)38
Vin (Max) (V)42
Vout (Nom) (V)200
Iout (Max) (A)1
Output Power (W)200
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologySepic- CCM

TI Devices (5)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM5022-Q1  6-60V Wide Vin, current mode boost, SEPIC and Flyback controller, AEC-Q100 qualified  Step-up (boost) regulators  Sample & Buy Not Available
LM5165-Q1  Automotive, 3V-65V, 150mA Synchronous Buck Converter With Ultra-Low IQ  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
SN74LV1T04  Single Power Supply INVERTER Gate logic level shifter  Voltage level translators  Sample & Buy View Design Kits & Evaluation Modules
TL432-Q1  Automotive adjustable precision shunt regulator (pin layout: RKA)  Voltage references  Sample & Buy Not Available
UCC27322-Q1  Automotive 4-A/4-A dual-channel gate driver with non-inverting inputs  Gate drivers  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM5022-Q1 Download Download
LM5165-Q1 Download Download
Download Download
SN74LV1T04 Download Download
Download Download
TL432-Q1 Download
UCC27322-Q1 Download -
Download -

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 3697 16 Jan 2020
Design files (6)
Title Type Size (KB) Date
ZIP 701 16 Jan 2020
ZIP 1352 16 Jan 2020
PDF 961 16 Jan 2020
PDF 174 16 Jan 2020
PDF 137 16 Jan 2020
PDF 196 16 Jan 2020

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