SBVU066A August   2020  – April 2021 TPS51397A

 

  1.   Trademarks
  2. 1Introduction
  3. 2Performance Specification Summary
  4. 3Modifications
    1. 3.1 Output Voltage Setpoint
    2. 3.2 Mode Selection
  5. 4Test Setup and Results
    1. 4.1 Input/Output Connections
    2. 4.2 Start-Up
    3. 4.3 Shutdown
    4. 4.4 Load Transient Response
    5. 4.5 Output Voltage Ripple
  6. 5Board Layout
    1. 5.1 Layout
  7. 6Schematic and Bill of Materials
    1. 6.1 Schematic
    2. 6.2 Bill of Materials
  8. 7References
  9. 8Revision History

2 Performance Specification Summary

The TPS51397AEVM is a single, synchronous buck converter providing 5 V at 10 A from 5.5-V to 24-V input. For 5-V output application, it can support Vin from 5.5 V. While for lower output application, for example, a 1.05-V output, it can support Vin from 4.5 V.

A summary of the TPS51397AEVM performance specifications is provided in Table 2-1. Specifications are given for an input voltage of 12 V and an output voltage of 5 V, unless otherwise specified. The ambient temperature is 25°C for all measurements, unless otherwise noted.

Table 2-1 TPS51397AEVM Performance Specifications Summary
SPECIFICATIONSTEST CONDITIONSMINTYPMAXUNIT
VIN Input voltage5.51224V
Output voltage setpoint

5

V
Output current rangeVIN = 5.5 V to 24 V010A
Output ripple voltageVIN = 12 V, IOUT = 10 A30mVPP
Output rise timeSoft start pin floating1.2ms