PMP22210

12-V/30-mA output, high-efficiency neutral-less upside-down buck AC/DC power supply reference design

PMP22210

Design files

Overview

This reference design uses the UCC28910 in an upside-down buck topology to make a 12-V output capable of 30-mA loading from a 120-Vac input. The design achieves more than 70% efficiency at full loading. All components are placed on one side of the board to reduce assembly complexity and cost. The overall board dimensions are 1.35 inches by 1.35 inches with a max height of 0.3 inches (excluding test points). The floating output stays within 1% regulation across loading conditions.

Features
  • More than 70% efficiency at full load
  • Less than 1% regulation across output loading
  • Compact solution size of 1.35 inches by 1.35 inches by 0.3 inches
  • Adjustable current limit
Output voltage options PMP22210.1
Vin (Min) (V) 108
Vin (Max) (V) 132
Vout (Nom) (V) 12
Iout (Max) (A) .03
Output Power (W) .36
Isolated/Non-Isolated Non-Isolated
Input Type AC
Topology Buck- Upside Down
Industrial
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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.

TIDT131A.PDF (1364 K)

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

TIDM156.PDF (101 K)

Detailed schematic diagram for design layout and components

TIDM157.PDF (280 K)

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

TIDM158.PDF (52 K)

Detailed overview of design layout for component placement

TIDM160.ZIP (405 K)

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

TIDCFL8.ZIP (289 K)

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

TIDM159.PDF (224 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

AC/DC & DC/DC converters (integrated FET)

UCC28910700V Flyback switcher with constant-voltage constant-current and primary-side control

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report High-Efficiency Neutral-Less Upside-Down Buck Reference Design (Rev. A) Jan. 28, 2020

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