6V-16V Input Four Phase Synchronous Boost Converter Audio Amplifier (25V@24A) Reference Design


Design files


This 600W four phase synchronous boost  supplies 25V @ 24A from a 6V - 16V input. Four phase operation allows fewer input and output capacitors and better thermal balancing with surface mount components.

  • 6V minimum input voltage operation
  • Excellent efficiency (96.4% at 600W load and 12Vin)
  • Inherent phase-to-phase current sharing
Output voltage options PMP11112.1
Vin (Min) (V) 6
Vin (Max) (V) 16
Vout (Nom) (V) 25
Iout (Max) (A) 24
Output Power (W) 600
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Boost- Multiphase

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.

TIDUCH4.PDF (2162 K)

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

TIDRO78.PDF (208 K)

Detailed schematic diagram for design layout and components

TIDRO79.PDF (112 K)

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

TIDRO80.PDF (504 K)

Detailed overview of design layout for component placement

TIDRO82.ZIP (5808 K)

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


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

TIDRO81.PDF (2796 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

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LM51223-65V Wide Vin, Current Mode Synchronous Boost Controller with Multiphase Capability

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Linear & low-dropout (LDO) regulators

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N-channel MOSFETs

CSD18501Q5A40-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 3.2 mOhm

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Real-time clocks (RTCs) & timers

LMC555World’s smallest 555 timer with low power, high accuracy and a Fmax of 3MHz

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Technical documentation

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Type Title Date
* Test report PMP11112 Test Results Oct. 31, 2016

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