Texas Instruments LM25019 Wide Vin Synchronous Step-down Regulator Evaluation Module LM25019MR-EVM LM25019MR-EVM 数据表
产品代码
LM25019MR-EVM
User's Guide
SNVU225 – April 2013
LM25019 Evaluation Board
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Introduction
The LM25019 evaluation board provides the design engineer with a fully functional buck regulator,
employing the constant on-time (COT) operating principle. This evaluation board provides a 10 V output
over an input range of 12.5 V to 48 V.
employing the constant on-time (COT) operating principle. This evaluation board provides a 10 V output
over an input range of 12.5 V to 48 V.
The board’s specifications are:
•
Input Range: 12.5 V to 48 V
•
Output Voltage: 10 V
•
Output Current: 100 mA
•
Nominal Switching Frequency ~ 420 kHz
•
Measured Efficiency: 90.2% at 100 mA and V
IN
= 15 V
•
Board size: 2.3 inch x 1.4 inch
Figure 1. Complete Evaluation Board Schematic for LM25019 Based Synchronous Buck Converter
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1
SNVU225 – April 2013
LM25019 Evaluation Board
Copyright © 2013, Texas Instruments Incorporated