Texas Instruments TPS65251, User Manual, Page: 3 / 17

2 Background
The TPS65251 PMIC is designed to provide 3-A and 2-A continuous outputs with an operational range of 4.5 V
to 18 V and an externally set switching frequency ranging from 300 kHz to 2.2 MHz. When the PMIC is not fully
loaded, Buck1 can be loaded to 3.5 A and Buck2 and Buck3 to 2.5 A.
As there are many possible options to set the converters, Table 2-1 presents the performance specification
summary for the EVM.
Table 2-1. Input Voltage and Output Current Summary
EVM TEST CONDITIONS OUTPUT CURRENT RANGE
TPS65251EVM
V
IN
= 4.5 V to 13 V
f
sw
= 500 kHz
Buck1, 1.2 V, 3 A
Buck2, 1.8 V, 2 A
Buck3, 3.3 V, 2 A
(25°C ambient)
This evaluation module is designed to provide access to the features of the TPS65251. Some modifications
can be made to this module to test performance at different input and output voltages, current and frequency
operation. Please contact TI Field Applications Group for advice on these matters.
www.ti.com Background
SLVU399B – AUGUST 2010 – REVISED MAY 2021
Submit Document Feedback
TPS65251 Buck Converter Evaluation Module User's Guide 3
Copyright © 2021 Texas Instruments Incorporated