SLVU276A February   2009  – October 2021 TPS54332

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Background
    2. 1.2 Performance Specification Summary
    3. 1.3 Modifications
      1. 1.3.1 Output Voltage Set Point
  3. 2Test Setup and Results
    1. 2.1  Input and Output Connections
    2. 2.2  Efficiency
    3. 2.3  Output Voltage Load Regulation
    4. 2.4  Output Voltage Line Regulation
    5. 2.5  Load Transients
    6. 2.6  Loop Characteristics
    7. 2.7  Output Voltage Ripple
    8. 2.8  Input Voltage Ripple
    9. 2.9  Powering Up
    10. 2.10 Eco-mode Operation
  4. 3Board Layout
    1. 3.1 Layout
    2. 3.2 Estimated Circuit Area
  5. 4Schematic and Bill of Materials
    1. 4.1 Schematic
    2. 4.2 Bill of Materials
  6. 5Revision History

1.1 Background

The TPS54332 DC/DC converter is designed to provide up to a 3.5-A output from an input voltage source of 3.5 V to 28 V. Table 1-1 provides the rated input voltage and output current range. This evaluation module is designed to demonstrate the small printed-circuit-board areas that can be achieved when designing with the TPS54332 regulator. The switching frequency is internally set at a nominal 1000 kHz. The high-side MOSFET is incorporated inside the TPS54332 package along with the gate drive circuitry. The low drain-to-source on resistance of the MOSFET allows the TPS54332 to achieve high efficiencies and helps keep the junction temperature low at high output currents. The compensation components are external to the integrated circuit (IC), and an external divider allows for an adjustable output voltage. Additionally, the TPS54332 provides adjustable slow start and undervoltage lockout inputs. The absolute maximum input voltage is 30 V for the TPS54332EVM-416.

Table 1-1 Input Voltage and Output Current Summary
EVMInput Voltage RangeOutput Current Range
TPS54332EVM-416VIN = 5 V to 15 V0 A to 3.5 A