SLUU818A April   2012  – February 2022 TPS51219

 

  1.   Trademarks
  2. 1Description
    1. 1.1 Typical Applications
    2. 1.2 Features
  3. 2Electrical Performance Specifications
  4. 3Schematic
  5. 4Test Setup
    1. 4.1 Test Equipment
    2. 4.2 Recommended Test Setup
  6. 5Test Procedure
    1. 5.1 Line/Load Regulation and Efficiency Measurement Procedure
    2. 5.2 List of Test Points
    3. 5.3 Equipment Shutdown
  7. 6Performance Data and Typical Characteristic Curves
    1. 6.1 Efficiency
    2. 6.2 Load Regulation
    3. 6.3 Line Regulation
    4. 6.4 Load Transient
    5. 6.5 Output Ripple
    6. 6.6 Switch Node Voltage
    7. 6.7 Turn-On/Turn-Off Waveform
    8. 6.8 Output 0.5-V Prebias Turnon Waveform
  8. 7EVM Assembly Drawing and PCB Layout
  9. 8Bill of Materials
  10. 9Revision History

2 Electrical Performance Specifications

Table 2-1 TPS51219EVM-630-001 Electrical Performance Specifications
Parameter Test Conditions Min Typ Max Unit
Input Characteristics
Voltage range VIN voltage 8 12 20 V
Maximum input current VIN = 8 V, IOUT = 20 A 3 A
No load input current VIN = 8 V, IOUT = 0 A 0.2 mA
Voltage range V5IN voltage 4.5 5 5.5 V
Maximum input current V5IN = 5 V, VIN = 12 V, IOUT = 20 A 20 mA
No load input current V5IN = 5 V, VIN = 12 V, IOUT = 0 A 0.5 mA
Output Characteristics
Output voltage, VOUT VIN = 12 V, IOUT = 10 A 1.05 V
Output load current, IOUT 20 A
Output voltage regulation Line regulation: VIN = 8 V to 20 V, VOUT = 1.05 V, IOUT = 20 A 0.2%
Load regulation: VIN = 12 V, VOUT = 1.05 V, IOUT = 1 mA to 20 A 0.2%
Output voltage ripple At VIN = 12 V, VOUT = 1.05 V, IOUT = 20 A 15 mVpp
Output over current 27 A
System Characteristics
Switching frequency VIN = 8 V, VOUT = 1.05 V, IOUT = 10 A 500 kHz
Peak efficiency VIN = 12 V, VOUT = 1.05 V 89.3%
Full load efficiency VIN = 12 V, VOUT = 1.05 V, IOUT = 20 A 85.4%
Operating temperature 25 °C