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User's Guide
SNVU468–February 2015
LMR14050SEVM User's Guide
The Texas Instruments LMR14050SEVM evaluation module (EVM) helps designers evaluate the
operation and performance of the LMR14050S wide-input Simple Switcher® buck regulator. This
document describes the setup and the input / output connections of the EVM. Included are the board
layout, schematic, and bill of materials.
1 Introduction
The LMR14050S is a 40 V 5 A step-down regulator with 40 μA quiescent current. With a wide-input range
from 4 V to 40 V, it is suitable for a wide range of applications from automotive to industry for power
conditioning from unregulated sources. The LMR14050SEVM evaluation board is designed to provide the
design engineer with a fully functional power converter based on the buck topology to evaluate the
LMR14050 series operation and performance.
Figure 1. LMR14050SEVM Board
EVM Features
• 7 V to 40 V Input Voltage Range
• Jumper Selectable Output Options (5.0 V or 3.3 V)
• Up to 5 A Output Current
• Switching Frequency 400 kHz
• Internal Compensation
The EVM contains one DC / DC converter (See Table 1)
Table 1. Device and Package Configurations
CONVERTER EVM IC PACKAGE
U1 LMR14050SEVM LMR14050S HSOIC-8
1
SNVU468–February 2015 LMR14050SEVM User's Guide
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