Texas Instruments LM5168FEVM, Руководство пользователя

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User’s Guide
LM5168FEVM EVM User's Guide
ABSTRACT
The LM5168FEVM is a 115-V DC/DC fly-buck regulator that employs synchronous rectification to achieve high
conversion efficiency in a small footprint. The EVM operates over a wide input voltage range of 20 V to 115
V (120-V absolute maximum) to provide a regulated 10-V output at up to 0.25 A with a 750-kHz switching
frequency. An additional 10-V floating output is provided through the fly-buck topology. The output voltage has
better than 1.5% set-point accuracy and is adjustable using an external resistor divider. The module design
uses the LM5168F-Q1 synchronous buck converter with wide input voltage range, wide duty-cycle range,
integrated high-side and low-side power MOSFETs, advanced overcurrent protection, and precision enable. With
AEC-Q100 grade 1 automotive qualification, the LM5168F-Q1 is rated to operate over a junction temperature
range of –40°C to +150°C.
Table 1-1. EVM Configuration
EVM CONVERTER IC PACKAGE
LM5168FEVM LM5168F-Q1 8-pin SO package with PowerPAD (4.89 mm × 3.90 mm)
Table of Contents
1 General TI High Voltage Evaluation User Safety Guidelines .............................................................................................. 3
2 EVM Characteristics ............................................................................................................................................................... 5
3 LM5168FEVM Evaluation Module .......................................................................................................................................... 6
3.1 Quick Start Procedure........................................................................................................................................................ 6
3.2 Detailed Descriptions......................................................................................................................................................... 7
4 Schematic ................................................................................................................................................................................ 8
5 PCB Layout .............................................................................................................................................................................. 9
6 Bill of Materials ...................................................................................................................................................................... 11
7 Performance Curves ............................................................................................................................................................. 13
List of Figures
Figure 3-1. LM5168FEVM Top View............................................................................................................................................ 6
www.ti.com Table of Contents
SNVU819 – NOVEMBER 2021
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