PMP30833

30-W two-switch buck-boost reference design with 24-V or 48-V output

PMP30833

Design files

Overview

This two-switch buck-boost reference design controlled by LM5118 steps up and steps down an input voltage range of 30-V to 60-V to either 24-V or 48-V output voltage. Jumper three at digital-to-analog converter (DAC) is used to decide 24 V or 48 V with jumper 48 VOUT and without 24 VOUT. For the final application, the 48-V output voltage is needed for short-term use of less than 1 s. For test purposes, the power stage withstands power level continuously, so the power stage can be shrunk for the final application.

Features
  • Supports 48-V startup output voltage and 24-V continuous output voltage
  • Prototype supports continuous 48-V output operation at full load and 600 mA for test purposes
  • Three control variants support various reactive load types
  • Control scheme supports switched output voltage, load transient and line transient
Output voltage options PMP30833.1
Vin (Min) (V) 30
Vin (Max) (V) 60
Vout (Nom) (V) 24
Iout (Max) (A) .3
Output Power (W) 7.2
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck Boost- 2 Switch^Buck Boost- Non Sync
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

PDF | HTML
TIDT281.PDF (5684 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDMAJ2.PDF (197 K)

Detailed schematic diagram for design layout and components

TIDMAJ3.PDF (232 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDMAJ4.PDF (192 K)

Detailed overview of design layout for component placement

TIDMAJ6.ZIP (568 K)

Files used for 3D models or 2D drawings of IC components

TIDCG78.ZIP (114 K)

Design file that contains information on physical board layer of design PCB

TIDMAJ5.PDF (572 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

AC/DC & DC/DC controllers (external FET)

LM51183-75V Wide Vin, Current Mode Non-Synchronous Buck-Boost Controller

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report 30-W Two-Switch Buck-Boost Reference Design With 24-V or 48-V Output PDF | HTML Jun. 08, 2022

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