SLUUCZ5 December   2024 TPS54538

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Test Setup and Procedure
      1. 2.1.1 EVM Connections
      2. 2.1.2 Test Equipment
      3. 2.1.3 Recommended Test Setup
        1. 2.1.3.1 Input Connections
        2. 2.1.3.2 Output connections
      4. 2.1.4 Test Procedure
        1. 2.1.4.1 Line and Load Regulation, Efficiency
  8. 3Implementation Results
    1. 3.1 Performance Data and Results
      1. 3.1.1 EVM Characteristics
      2. 3.1.2 Conversion Efficiency
      3. 3.1.3 Operating Waveforms
        1. 3.1.3.1 Start-Up and Shutdown with EN
        2. 3.1.3.2 Start-Up with VIN
        3. 3.1.3.3 Load Transient Response
        4. 3.1.3.4 Output Voltage Ripple
      4. 3.1.4 Thermal Performance
  9. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials
  10. 5Compliance Information
    1. 5.1 Compliance and Certifications
  11. 6Additional Information
    1. 6.1 Trademarks
  12. 7Related Documentation

3.1.1 EVM Characteristics

The electrical characteristics are shown in Table 3-1.

Table 3-1 Electrical Performance Characteristics
ParameterTest ConditionsMINTYPMAXUnit
INPUT CHARACTERISTICS
Input voltage range, VINOperating

5.5

28

V
Input current, non-switching, IVIN

No load, VEN = 5V, non-switching,PFM

28

34

µA
No load, VEN = 5V, non-switching,FPWM

40

47

Input current, shutdown, IVINSDNNo load, VEN = 0V

3

5.5

µA
VIN Under voltage lockout,VIN(UVLO)Rising Vin3.43.63.8

V

Falling Vin3.23.43.6
Hysteresis

0.2

EN Threshold high-level, VEN(ON)TJ=25°C

1.15

1.22

V

EN Threshold low-level, VEN(OFF)TJ=25°C

0.9

1

V

OUTPUT CHARACTERISTICS
Output voltage, VOUTTJ=25°C

4.95

5.0

5.05

V

Output current, IOUTVIN = 5.5V to 24V0

5

A
Soft-start time, tSS

Internal soft-start time with PG Enabled.

3.6

ms
SYSTEM CHARACTERISTICS
Switching frequency, FSW

CCM operation

200

2200

kHz
Modulation frequency,FM

10

kHz

Spread of internal oscillator with Spread Spectrum Enabled, fSPREAD±8%
TPS54538 operating junction temperature, TJ–40150°C