15V to 60V Wide Input Four-Output SIMPLE SWITCHER® Reference Design Using LM46002 and LMZ21701


Design files


This reference design demonstrates the wide input voltage capability and small solution size of the LM46002 SIMPLE SWITCHER® Synchronous Buck Converter and the LMZ21701 SIMPLE SWITCHER® Nano Module. The LM46002 provides a regulated 12V rail from an input of 15V to 60V. The 12V rail is then regulated down to 5V, 3.3V, and 1.8V rails using three LMZ21701 nano modules. Each rail can provide up to 1A of load current.

As seen at APEC

  • Wide Input Voltage Range
  • Easy to Use
  • Small Solution Size
  • High Efficiency
  • Modular Design
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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.

TIDU807.PDF (1694 K)

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

TIDRD36.PDF (107 K)

Detailed schematic diagram for design layout and components

TIDRD37.PDF (135 K)

Detailed schematic diagram for design layout and components

TIDRD38.PDF (68 K)

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

TIDC930.ZIP (124 K)

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


Includes TI products in the design and potential alternatives.

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

LM460023.5V to 60V, 2A Synchronous Step-Down Voltage Converter

Data sheet: PDF | HTML
Power modules (integrated inductor)

LMZ217013V to 17V, 1A Step-Down DC/DC Power Module in 3.5mm × 3.5mm Package

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report PMP10618 Test Results Feb. 26, 2015

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