Single Phase 60W Audio Amplifier Reference Design


Design files


PMP9372 is a single-phase synchronous boost converter, which utilizes the LM5121 controller. Inrush limiting is set to 11A nominal, which allows startup into a 4700μF output capacitor. The TPS3700DDC is used as an output voltage monitor, which provides Power Good signaling of output over-voltage and under-voltage.

  • Single Phase Synchronous Boost Converter
  • 60W Pout
  • Efficiency 97% at 12V Input
  • Input Over Current Disconnect through Series Switch
  • Switching frequency 450kHz
  • 6 Layer Board
Output voltage options PMP9372.1
Vin (Min) (V) 6.4
Vin (Max) (V) 15
Vout (Nom) (V) 15.45
Iout (Max) (A) 4
Output Power (W) 61.8
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Boost- 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.

TIDUAT8.PDF (1187 K)

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


Detailed schematic diagram for design layout and components


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


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

TIDCB35.ZIP (197 K)

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


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Boost controllers (external switch)

LM51213-65V Wide Vin, Current Mode Synchronous Boost with Disconnection Switch Control

Data sheet: PDF | HTML
N-channel MOSFETs

CSD17309Q330-V, N channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 6.3 mOhm

Data sheet: PDF | HTML
Supervisor & reset ICs

TPS3700High-voltage (18-V) window voltage detector for overvoltage and undervoltage monitoring

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP9372 Test Results Sep. 29, 2015

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