SLVU719B May   2012  – November 2021 TPS53819A

 

  1.   Trademarks
  2. 1 Description
    1. 1.1 Typical Applications
    2. 1.2 Features
  3. 2 Electrical Performance Specifications
  4. 3 Schematic
  5. 4 Test Setup
    1. 4.1 Test and Configuration Software
      1. 4.1.1 Description
      2. 4.1.2 Features
    2. 4.2 Test Equipment
    3. 4.3 Recommended Test Setup
      1. 4.3.1 Input Connections
      2. 4.3.2 Output Connections
      3. 4.3.3 Other Connections
    4. 4.4 List of Test Points
    5. 4.5 Jumper Configuration: Enable Selection
  6. 5 EVM Configuration Using the Fusion GUI
    1. 5.1 Configuration Procedure
    2. 5.2 Default Fusion GUI Screenshots and Description
  7. 6 Test Procedure
    1. 6.1 Line and Load Regulation and Efficiency Measurement Procedure
    2. 6.2 Control Loop Gain and Phase Measurement Procedure
    3. 6.3 Equipment Shutdown
  8. 7 Performance Data and Typical Characteristic Curves
    1. 7.1  Efficiency
    2. 7.2  Load Regulation
    3. 7.3  Line Regulation
    4. 7.4  fSW Versus Load
    5. 7.5  Bode Plot
    6. 7.6  Transient Response
    7. 7.7  Output Ripple
    8. 7.8  Switching Node
    9. 7.9  Turn-On Waveform
    10. 7.10 Turn-Off Waveform
    11. 7.11 Pre-bias Turn-On Waveform
    12. 7.12 Thermal Images
  9. 8 EVM Assembly Drawing and PCB layout
  10. 9 Bill of Materials
  11. 10Revision History

2 Electrical Performance Specifications

Table 2-1 TPS53819AEVM-123 Electrical Performance Specifications(1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
INPUT CHARACTERISTICS
Voltage range, VIN 8 12 14 V
Maximum input current VIN = 8 V, IOUT = 25 A 4.3 A
No load input current VIN = 14 V, IOUT = 0 A with auto skip mode 1 mA
OUTPUT CHARACTERISTICS
Output voltage, VOUT 1.2 V
Output load current, IOUT 0 25 A
Output voltage regulation Line regulation: input voltage = 8 V to 14 V 0.5%
Load regulation: output current = 0 A to 25 A 0.5%
Output voltage ripple VIN = 12 V, IOUT = 25 A 10 mVpp
Output over current IOUT_OC fault flag asserted 25 A
SYSTEMS CHARACTERISTICS
Switching frequency 425 kHz
Peak efficiency VIN = 12 V, IOUT = 10 A 91.0%
Full load efficiency VIN = 12 V, IOUT = 25 A 87.9%
Loop bandwidth VIN = 12 V, IOUT = 25 A 111 kHz
Phase margin VIN = 12 V, IOUT = 25 A 91.4 °
Operating temperature 25 °C
(1) This design uses TI Default PMBus settings