High Efficiency Syncronous Buck Regulator (12V/15V @ 5A)


Design files


This synchronous buck regulator provides 96% efficiency when regulating 24Vin to 15V out @ 5A. The output can be set to regulate 12V , if desired. PMP8493 uses TPS40170 wide input synchronous buck controller.

Output voltage options PMP8493.1
Vin (Min) (V) 16
Vin (Max) (V) 30
Vout (Nom) (V) 15
Iout (Max) (A) 5
Output Power (W) 75
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Synchronous

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.

SLUUAB5.PDF (1328 K)

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

SLURA24.PDF (40 K)

Detailed schematic diagram for design layout and components

SLURA25.PDF (17 K)

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


Includes TI products in the design and potential alternatives.

Buck controllers (external switch)

TPS401704.5 V to 60 V Wide-Input Synchronous PWM Buck Controller

Data sheet document-pdfAcrobat PDF open-in-new HTML
N-channel MOSFETs

CSD18504Q5A40-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 6.6 mOhm

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
Test report PMP8493 Test Results Feb. 11, 2013

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