PMP8637

Synchronous Buck 3.3V @ 125mA Reference Design

PMP8637

Design files

Overview

This design is a buck-boost converter for automotive applications covering an input voltage range of 3.5 .. 35V. It provides an output voltage of 5.7V @ 1.2A.

Output voltage options PMP8637.1 PMP8637.2 PMP8637.3 PMP8637.4 PMP8637.5 PMP8637.6
Vin (Min) (V) 3.5 3.5 3.5 3.2 3.2 5.6
Vin (Max) (V) 35 35 35 3.4 3.4 5.8
Vout (Nom) (V) 5.7 3.3 3.3 1.2 .75 3.3
Iout (Max) (A) 1.2 .5 2.3 .9 .7 .13
Output Power (W) 6.84 1.65 7.59 1.08 .525 .429
Isolated/Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC DC DC DC DC
Topology Buck Boost- 2 Switch Buck- Non Sync Buck- Synchronous Buck- Synchronous Buck- Synchronous Buck- Synchronous
Industrial

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.

SLVU978.PDF (1406 K)

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

SLVU979.PDF (767 K)

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

SLVU980.PDF (777 K)

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

SLVU981.PDF (744 K)

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

SNVU351.PDF (862 K)

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

SNVU352.PDF (788 K)

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

SLVRB79.PDF (137 K)

Detailed schematic diagram for design layout and components

SLVRB81.PDF (68 K)

Detailed schematic diagram for design layout and components

SLVRB83.PDF (77 K)

Detailed schematic diagram for design layout and components

SLVRB85.PDF (77 K)

Detailed schematic diagram for design layout and components

SNVR349.PDF (97 K)

Detailed schematic diagram for design layout and components

SNVR351.PDF (80 K)

Detailed schematic diagram for design layout and components

SLVRB80.PDF (21 K)

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

SLVRB82.PDF (17 K)

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

SLVRB84.PDF (17 K)

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

SLVRB86.PDF (33 K)

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

SNVR350.PDF (19 K)

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

SNVR352.PDF (34 K)

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

Products

Includes TI products in the design and potential alternatives.

Buck-boost & inverting controllers (external switch)

LM251183-42V Wide Vin, Current Mode Non-Synchronous Buck-Boost Controller

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report PMP8637.1 Test Results Sep. 19, 2013
Test report PMP8637.2 Test Results Sep. 19, 2013
Test report PMP8637.6 Test Results Sep. 19, 2013
Test report PMP8637.4 Test Results Sep. 19, 2013
Test report PMP8637.5 Test Results Sep. 19, 2013
Test report PMP8637.3 Test Results Sep. 19, 2013

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