PMP31177

1-W primary-side regulated flyback reference design

PMP31177

Design files

Overview

This 26.54 mm × 11.68 mm × 5.6-mm height board is optimized to leverage the performance of the LM5181 PSR Flyback converter. The board operates over an input voltage range of 18 V to 32 V to deliver 24-V and 3.3‑V outputs at currents of up to 40 mA and 15 mA respectively. Operating without an auxiliary winding or opto-coupler, the LM5181 provides a tight output voltage regulation. The LM5181 offers several protection features, such as undervoltage lockout to provide correct operation during voltage-sag conditions, programmable soft-start to reduce inrush current, hiccup-mode overcurrent protection and thermal shutdown.

Features
  • 18-V to 32-V input voltage range
  • 24-V and 3.3-V output voltages
  • Up to 1-W total output power
  • High-voltage isolation
  • Fully assembled and tested PCB layout with small footprint and low profile
Output voltage options PMP31177. 1 PMP31177. 2
Vin (Min) (V) 18 18
Vin (Max) (V) 32 32
Vout (Nom) (V) 24 3.3
Iout (Max) (A) .04 .015
Output Power (W) .96 .0495
Isolated/Non-Isolated Isolated Isolated
Input Type DC DC
Topology Flyback- Integrated Switch^Flyback- Non Sync Flyback- Integrated Switch^Flyback- Non Sync
??image.gallery.download_en_US?? View video with transcript Video

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.

PDF | HTML
TIDT336.PDF (750 K)

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

TIDMBJ5.PDF (186 K)

Detailed schematic diagram for design layout and components

TIDMBJ6.PDF (236 K)

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

TIDMBJ7.PDF (164 K)

Detailed overview of design layout for component placement

TIDMBJ9.ZIP (695 K)

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

TIDCGE8.ZIP (116 K)

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

TIDMBJ8.PDF (490 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)

LM518165-VIN no-opto flyback converter with 100-V, 0.75-A integrated MOSFET

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS7A20300mA ultra-low-noise low-IQ low-dropout (LDO) linear regulator with high PSRR

Data sheet: PDF | HTML

Technical documentation

star
= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Test report 18 VDC–32 VDC to 24 V and 3.3 V, 1-W Iso. Primary- Side Reg. Flyback Ref. Design PDF | HTML May 23, 2023

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​

Videos