SLUUCR2 October   2023 TPSM843620

 

  1.   1
  2.    TPSM843620EVM 6-A, SWIFT™ Regulator Evaluation Module
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Background
    2. 1.2 Before You Begin
    3. 1.3 Performance Characteristics Summary
  5. 2Configurations and Modifications
    1. 2.1 Output Voltage
    2. 2.2 Switching Frequency (SYNC/FSEL Pin)
    3. 2.3 Current Limit, Soft-Start Time, and Internal Compensation (MODE Pin)
    4. 2.4 Adjustable UVLO
  6. 3Test Setup and Results
    1. 3.1  Input/Output Connections
    2. 3.2  BOM Modifications for Spins
    3. 3.3  Efficiency
    4. 3.4  Output Voltage Regulation
    5. 3.5  Load Transient and Loop Response
    6. 3.6  Output Voltage Ripple
    7. 3.7  Input Voltage Ripple
    8. 3.8  Start-up and Shutdown with EN
    9. 3.9  Start-up and Shutdown with VIN
    10. 3.10 Start-up Into Pre-Bias
    11. 3.11 Thermal Performance
  7. 4Board Layout
    1. 4.1 Layout
  8. 5Schematic and Bill of Materials
    1. 5.1 Schematic
    2. 5.2 Bill of Materials

1.3 Performance Characteristics Summary

A summary of the TPSM843620EVM performance characteristics is provided in Table 1-2. The TPSM843620EVM is designed and tested for VIN = 4 V to 18 V. Characteristics are given for an input voltage of VIN = 12 V and an output voltage of 1 V, unless otherwise specified. The ambient temperature is room temperature (20°C to 25°C) for all measurements, unless otherwise noted.

Table 1-2 TPSM843620EVM Performance Characteristics Summary
SPECIFICATION TEST CONDITIONS MIN TYP MAX UNIT
VIN voltage range 4 12 18 V
Input current VIN = 12 V, IO = 0 A 15 mA
VIN = 5 V, IO = 6 A 1.46 A
VIN start voltage Set by EN pin resistor divider 4.53 V
VIN stop voltage Set by EN pin resistor divider 3.98 V
Output voltage setpoint 1.00 V
Output current range VIN = 4 V to 18 V 0 6 A
Line and load regulation VIN = 4 V to 18 V, IO = 0 A to 6 A ±0.1%
Loop bandwidth IO = 6 A, J4 short pins 3 and 4 140 kHz
Phase margin 53 degrees
Input ripple voltage IO = 6 A 75 mVPP
Output ripple voltage IO = 6 A 10 mVPP
Output rise time Set by MODE pin resistor, All default J4 options 1 ms
Current limit Set by MODE pin resistor, J4 short pins 1 and 2, 3 and 4, or 5 and 6 High
Switching frequency (fSW) Set by FSEL pin resistor, J5 short pins 5 and 6 1000 kHz
Peak efficiency VIN = 5 V, IO = 2 A 89.4%
VIN = 12 V, IO = 2.75 A 85.2%
IC case temperature VIN = 12 V, IO = 6 A, 10-minute soak 70.2 °C