PMP15012

Inverting Buck-Boost Reference Design Featuring LMR16020 DC/DC Buck Converter

PMP15012

Design files

Overview

The PMP15012 reference design is a DC/DC buck-boost solution which accepts an input voltage of 18V to 36V and provides negative 15V/200mA output to the load. This reference design adds an external UVLO circuit to narrow the UVLO hysteresis because a buck-boost converter is difficult to shut down. This LMR16020 buck-boost reference design can be used for supplying the DAC/ADC/OA in an industrial application.

Features
  • 18V to 36V Wide Vin 15V negative output
  • External UVLO circuit to narrow the buck-boost UVLO hysteresis
  • Peak current mode control
  • OCP for transformer saturation protection
  • Internal compensation for easy of use
Output voltage options PMP15012.1
Vin (Min) (V) 18
Vin (Max) (V) 36
Vout (Nom) (V) -15
Iout (Max) (A) .2
Output Power (W) 3
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck Boost- Inverting
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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.

TIDUBQ1.PDF (1274 K)

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

TIDRLE1.PDF (117 K)

Detailed schematic diagram for design layout and components

TIDRLE2.PDF (96 K)

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

TIDCC32.ZIP (173 K)

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

Products

Includes TI products in the design and potential alternatives.

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

LMR16020SIMPLE SWITCHER 60V, 2A Step-Down Converter with 40uA Iq

Data sheet: PDF | HTML
Shunt voltage references

LM4312%, 1%, or 0.5% accuracy, adjustable precision Zener shunt regulator

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP15012 Test Results Apr. 14, 2016

Related design resources

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PMP10680 4.5V to 24V Wide Input, Negative 5V/2A Output Non-synchronous Converter Reference Design

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