PMP30595

Universal buck converter reference design for educational purposes

PMP30595

Design files

Overview

This universal buck converter reference design features a voltage mode buck converter in combination with a tiny, onboard electronics load to demonstrate the relationship in between small signal analysis in frequency domain (= network analysis) and large signal analysis in time domain (= transient response). The loop bandwidth has been squeezed to maximum with a cross over frequency at 20 kHz+. When using this converter design in mass production, it’s recommended to use compensation values for a cross over frequency of 15 kHz with a safe gain margin. In this design, the loop bandwidth has been exhausted to test Bode function of measurement equipment and demonstrate the impact of drain jitter (= subharmonic noise) regarding power integrity.

Features
  • Extra low input voltage < 16 V for safety reasons
  • 2.5-mm jack to use cost effective 12 V wall adapter
  • Input filter to demonstrate attenuation of reflected ripple (= conducted emissions)
  • RC snubber circuit to demonstrate RF ripple reduction (= radiated emissions)
  • Load and load control could be fully disconnected from input and output for efficiency measurement
  • Numerous test points to access all voltages and waveforms
Output voltage options PMP30595.1
Vin (Min) (V) 8
Vin (Max) (V) 16
Vout (Nom) (V) 5
Iout (Max) (A) 1
Output Power (W) 5
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Non Sync

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.

TIDT095.PDF (1880 K)

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

TIDRZ99.PDF (135 K)

Detailed schematic diagram for design layout and components

TIDRZA0.PDF (140 K)

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

TIDRZA1.PDF (120 K)

Detailed overview of design layout for component placement

TIDRZA3.ZIP (808 K)

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

TIDCFD0.ZIP (59 K)

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

TIDRZA2.PDF (698 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

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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 Universal buck converter reference design for educational purposes Mar. 08, 2019

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