SLUUBE0A November   2015  – August 2021 TPS549A20

 

  1.   Trademarks
  2. 1 Introduction
  3. 2 Description
    1. 2.1 Typical Applications
    2. 2.2 Features
  4. 3 Electrical Performance Specifications
  5. 4 Schematic
  6. 5 Test Setup
    1. 5.1 Test Equipment
    2. 5.2 Recommended Test Setup
  7. 6 Configurations
    1. 6.1 PMBus Address Selection
    2. 6.2 Mode Selection
    3. 6.3 VDD Pin Supply Selection
  8. 7 Test Procedure
    1. 7.1 Line and Load Regulation and Efficiency Measurement Procedure
    2. 7.2 PMBUS Setup and Verification
    3. 7.3 Control-Loop Gain and Phase-Measurement Procedure
    4. 7.4 List of Test Points
    5. 7.5 Equipment Shutdown
  9. 8 EVM Assembly Drawing and PCB Layout
  10. 9 Bill of Materials
  11. 10Revision History

3 Electrical Performance Specifications

Table 3-1 TPS549A20EVM-737 Electrical Performance Specifications(1)
PARAMETERTEST CONDITIONSMINTYPMAXUNITS
INPUT CHARACTERISTICS
VINVoltage range51218V
IIN(min)Maximum input currentVIN = 5 V, IOUT = 8 A2.5A
IIN(noload)No load input currentVIN = 12 V, IO = 0 A with auto-skip mode1mA
OUTPUT CHARACTERISTICS
VOUTOutput voltage1.2V
Line regulation(5 V < VIN < 14 V) with FCCM0.2%
Load regulation(VIN = 12 V, = 0 A < IOUT < 8 A) with FCCM0.5%
VRIPPLEOutput voltage rippleVIN = 12 V, IOUT = 8 A with FCCM10mVpp
Output load current015A
Output over current15A
tSSSoft-start time1ms
SYSTEMS CHARACTERISTICS
fSWSwitching frequency1000kHz
Peak efficiencyVIN = 12 V, VOUT = 1.2 V, IOUT = 4 A91.0%
Full load efficiencyVIN = 12 V, VOUT = 1.2 V, IOUT = 8 A90.3%
TAAmbient temperature25°C
(1) Jumpers set to default locations, See Section 6.