SLVU346A January   2010  – February 2022 TPS51218

 

  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
      1. 4.2.1 Configurations
      2. 4.2.2 Input Connections
      3. 4.2.3 Output Connections
      4. 4.2.4 Other Connections
  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 Transient Response
    4. 6.4 Output Ripple
    5. 6.5 Switch Node Voltage
    6. 6.6 Turn-On Waveform
    7. 6.7 Turn-Off Waveform
    8. 6.8 Output 1.1-V Prebias Turn-On
  8. 7EVM Assembly Drawing and PCB Layout
  9. 8Bill of Materials
  10. 9Revision History

2 Electrical Performance Specifications

Table 2-1 TPS51218EVM Electrical Performance Specifications
Parameter Test Conditions Min Typ Max Units
INPUT CHARACTERISTICS
Voltage range VIN 8 12 14 V
Maximum input current VIN = 8 V, IO = 20 A 3.55 A
No load input current VDC = 14 V, IO = 0 A 50 mA
OUTPUT CHARACTERISTICS
Output voltage, VOUT 1.2 V
Output voltage regulation Line regulation (VDC = 10 V–14 V) 1.0%
Load regulation (VDC = 12 V, IO = 0 A–20 A) 1.0%
Output voltage ripple VIN = 12 V, IO = 20 A 40 mVpp
Output load current 0 20 A
Output overcurrent 30 A
SYSTEMS CHARACTERISTICS
Switching frequency 380 kHz
Peak efficiency VIN = 12 V, 1.2 V/10 A 90.32%
Full-load efficiency VIN = 12 V, 1.2 V/20 A 88.64%
Operating temperature 25 °C