TPS652510 Buck Converter Evaluation Module User's Guide

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1 Background and EVM Limitations

The TPS652510 PMIC is designed to provide 3 , 2 and 2 A continuous outputs with an operational range of 4.5 to 16V and a externally set switching frequency ranging from 300kHz to 2.2MHz, with automatic PFM/PWM operation . When the PMIC is not fully loaded, buck1 can be loaded to 3.5A and buck 2 and 3 to 2.5A.

As there are many possible options to set the converters, table 1 presents the performance specification summary for the EVM.

Table 1-1 Input Voltage and Output Current Summary

Evaluation Module	Test Conditions	Output Current Range
TPS652510EVM	Vin = 4.5 V to 15 V Fsw = 500 KHz	Buck1, 1.2 V, 3A Buck2, 1.8 V, 3A Buck3, 3.3 V, 3A (25°C ambient)

This evaluation module is designed to provide access to the features of the TPS652510. 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.

2 Power-up Procedure

Define which converters are to be enabled or disabled by connecting jumpers to JP3, JP11 and JP20 accordingly, or to wiring external drive signals to the ENx headers.
If PGOOD signal is required connect JP27 or wire the PGOOD pin to a pull-up supply
Connect loads to the output connectors.
Apply a DC voltage to header J3. Polarity is marked on the silk-screen.
Converters will start according to the setting on JP3, JP11 and JP20. Check the outputs