SLVU399B August   2010  – May 2021 TPS65251

 

  1.   Trademarks
  2. 1Introduction
  3. 2Background
  4. 3Schematic
  5. 4Placement (Top Layer)
  6. 5Bench Test Setup Conditions
    1. 5.1 Headers Description and Jumper Placement
    2. 5.2 Jumpers
    3. 5.3 Test Points and Placement
  7. 6Power-Up Procedure
  8. 7Bill of Materials
  9. 8Revision History

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 VIN = 4.5 V to 13 V
fsw = 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.