New

PMP31273

Automotive dual buck converter reference design for C2000™ MCU with supervisor and watchdog

PMP31273

Design files

Overview

This reference design is a flexible and compact power supply providing 5-V and 3.3-V output rails to supply the C2000™ MCU. The design includes two LMR34206-Q1 ultra-small synchronous step-down converter devices and one TPS3850-Q1 precision voltage supervisor with programmable window watchdog timer. In addition, a single SN74LVC2G74-Q1 D-type flip-flop is added to provide the compatibility of the watchdog with the C2000™ MCU startup behavior.

Features
  • Dual output of 5 V and 3.3 V
  • High-efficiency conversion due to synchronous rectification
  • Precision voltage supervisor
  • Programmable window watchdog timer
  • Design was built and tested
Output voltage options PMP31273.1 PMP31273.2
Vin (Min) (V) 12 12
Vin (Max) (V) 24 24
Vout (Nom) (V) 5 3.3
Iout (Max) (A) .6 .6
Output Power (W) 3 1.98
Isolated/Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC
Topology Buck- Synchronous Buck- Synchronous
??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
TIDT359.PDF (1208 K)

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

TIDMC18.PDF (298 K)

Detailed schematic diagram for design layout and components

TIDMC20.PDF (175 K)

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

TIDMC21.PDF (213 K)

Detailed overview of design layout for component placement

TIDMC22.ZIP (821 K)

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

TIDCGI6.ZIP (459 K)

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

TIDMC19.PDF (699 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)

LMR34206-Q14.2-V to 42-V, 0.6-A ultra-small synchronous step-down converter

Data sheet: PDF | HTML
D-type flip-flops

SN74LVC2G74-Q1Automotive Catalog Single Positive-Edge-Triggered D-Type Flip-Flop with Clear and Preset

Data sheet: PDF
Supervisor & reset ICs

TPS3850-Q1Automotive, window supervisor for OV & UV monitoring with window watchdog timer & programmable delay

Data sheet: PDF | HTML

Technical documentation

No results found. Please clear your search and try again.
View all 1
Type Title Date
Test report Automotive Dual Buck Converter Ref. Des. for C2000 MCU w/ Supervisor & Watchdog PDF | HTML Oct. 16, 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