Top

MAXREFDES1255: 4-Switch Buck-Boost Converter

MAXREFDES1255

Reference Design Disclaimer See the  Important Notice and Disclaimer  covering reference designs and other Maxim resources.

Reference Guide

Description

MAXREFDES1255 is a 4-switch buck-boost converter that gives a positive step-up/stepdown output voltage. It uses MAX20048 IC, a current-mode buck-boost controller, which drives four MOSFETs to generate positive buck-boost output. This reference design can operate from 5V to 36V input and deliver up to 5A of load current at 12V output. This design targets automotive applications.

Features

  • High efficiency of 90%
  • Very low line and load regulation < 0.5%
  • Output voltage ripple 1% at nominal VIN
  • Internal soft-start

Icon

Designed, Built, Tested

Board pictured here has been fully assembled and tested. Not available for sale.

 

Parametrics

Input Type Vin(Min) Vin(Max) Iout(Max) Single/Multiple Output Vout(V) Pout(W) Isolated/Non-Isolated Topology
DC 5 36 5 - 12 60 Non-Isolated 4-Switch Buck-Boost

Parametrics

Input Type DC
Vin(Min) 5
Vin(Max) 36
Iout(Max) 5
Single/Multiple Output -
Vout(V) 12
Pout(W) 60
Isolated/Non-Isolated Non-Isolated
Topology 4-Switch Buck-Boost

Maxim Devices (1)

Part Number Name Product Family Order Design kits and evaluation modules
MAX20048 Automotive 40V, 55µA IQ, 2.2MHz, H-Bridge Buck-Boost Controller Switching Regulators Buy Now Design Kits

Maxim Devices (1)

Part Number Product Family
Switching Regulators
Automotive 40V, 55µA IQ, 2.2MHz, H-Bridge Buck-Boost Controller

Design Files (4)

Title Type Size Date
MAXREFDES1255 Schematic PDF 19KB 2020-11-18
MAXREFDES1255 Test Results PDF 223KB 2020-11-18
MAXREFDES1255 BOM CSV 4KB 2020-11-18
MAXREFDES1255 Fab Assembly ZIP 1MB 2020-11-18
Date Type
2020-11-18

MAXREFDES1255 Schematic

(PDF, 19KB)

2020-11-18

MAXREFDES1255 Test Results

(PDF, 223KB)

2020-11-18

MAXREFDES1255 BOM

(CSV, 4KB)

2020-11-18

MAXREFDES1255 Fab Assembly

(ZIP, 1MB)

MAXREFDES1255 Related Videos

View All Videos