User’s Guide
LM5169FQEVM EVM User Guide
ABSTRACT
The LM5169FQEVM 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, 0.3A at 750-kHz switching frequency,
and an additional 10-V, 0.3A floating output. The output voltage has better than 1.5% set-point accuracy
and is adjustable using an external resistor divider. The module design uses the LM5169F-Q1 synchronous
buck converter with wide input voltage range, wide duty-cycle range, integrated high-side and low-side power
MOSFETs, advanced over current protection, and precision enable. With AEC-Q100 grade 1 automotive
qualification, the LM5169F-Q1 is rated to operate over a junction temperature range of –40°C to +150°C.
Please note that for EVMs labeled as
LM5168FQEVM
, that the LM5168F is installed and approximately one half
of the load current is available from this device. Both EVMs are identical, except for the converter IC installed.
For the LM5169F version, please contact your local Texas Instruments representative.
Table 1-1. EVM Configuration
EVM
CONVERTER IC
PACKAGE
LM5169FQEVM
LM5169F-Q1
8-pin SO package with PowerPAD (4.89 mm × 3.90 mm)
LM5168FQEVM
LM5168F-Q1
8-pin SO package with PowerPAD (4.89 mm × 3.90 mm)
SNVU757 – JUNE 2021
LM5169FQEVM EVM User Guide
1
Copyright © 2021 Texas Instruments Incorporated
