SLVUAT2A November   2016  – February 2022 TPSM84A21 , TPSM84A22

 

  1.   Trademarks
  2. 1Description
  3. 2Getting Started
  4. 3Test Point Descriptions
  5. 4Operation Notes
  6. 5Performance Data
  7. 6Schematic
  8. 7Bill of Material
  9. 8PCB Layout
  10. 9Revision History

1 Description

The TPSM84A21 and TPSM84A22 are synchronous buck power modules designed to provide up to 10 A of output current. The TPSM84A21 and TPSM84A22 power modules combine the TPS54A20, a 10-A DC/DC synchronous series capacitor buck converter with power MOSFETs, shielded inductors, input and output capacitors, and passive components into a low-profile package. The input voltage range of both devices is 8 V to 14 V. See the Minimum Input Voltage curve in the TPSM84A22, 8-V to 14-V Input, 1.2-V to 2.05-V Output, 10-A SWIFT Power Module Data Sheet for the minimum required input voltage for VOUT > 1.5 V. The output voltage ranges of both devices are given in Table 1-1. The output voltage of the EVM can be set to one of five popular values by using a configuration jumper.

This evaluation module is designed to demonstrate the ease-of-use and small printed-circuit board (PCB) area possible when designing with the TPSM84A21 and TPSM84A22 power modules. Monitoring test points are provided to allow measurement of the following:

  • Efficiency
  • Power dissipation
  • Input ripple
  • Output ripple
  • Line and load regulation
  • Transient response

Additionally, control test points are provided for use of the power good, inhibit control, and undervoltage lockout features of the device. The EVM uses a recommended PCB layout that maximizes thermal performance and minimizes output ripple and noise.

Table 1-1 Output Voltage Range
EVMOutput Voltage Range
TPSM84A21EVM-8080.55 V to 1.3 V
TPSM84A22EVM-8091.2 V to 2.05 V