SLVUCA2 December   2021 TPS629210

 

  1.   Trademarks
  2. 1Introduction
  3. 2Performance Specification
  4. 3EVM Configuration and Modification
    1. 3.1 Input and Output Capacitors
    2. 3.2 Configurable Enable Threshold Voltage
    3. 3.3 MODE/S-CONF Setting
    4. 3.4 Power Good
    5. 3.5 Power-Good Pullup Voltage
    6. 3.6 Feedforward Capacitor Option
    7. 3.7 Output Voltage Setting
    8. 3.8 Loop Response Measurement
  5. 4EVM Test Set Up
    1. 4.1 Input and Output Connectors
    2. 4.2 Jumper Configuration
      1. 4.2.1 JP1 Enable
      2. 4.2.2 JP2 MODE/S-CONF
      3. 4.2.3 JP3 Power Good
      4. 4.2.4 JP4 PG Pullup Voltage
  6. 5Test Results
  7. 6Board Layout
  8. 7Schematic and Bill of Materials
    1. 7.1 Schematic
    2. 7.2 Bill of Materials
  9. 8References

1 Introduction

The TPS629210 is a high efficiency and highly flexible synchronous step-down buck converter in a small 1.6-mm × 2.1-mm SOT583 package. The TPS629210 can be configured to run 2.5 MHz or 1 MHz in either forced PWM mode or auto PFM/PWM mode. In 2.5-MHz auto PFM/PWM mode, automatic efficiency enhancement mode automatically adjusts the switching frequency based on both input and output voltage to hold a high efficiency through the whole operation range without the need of using different inductors. The device includes a smart-Config/mode input to select the following:

  • Different combinations of external and internal feedback
  • Maximum switching frequency
  • Output discharge enable and disable
  • Auto PFM/PWM
  • Forced PWM operations

The TPS629210EVM(BSR131-005) uses 1-A TPS629210 to produce a 3.3-V output from a 12-V input.