SLUU381B September   2009  – February 2022 TPS51220A

 

  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
    3. 5.3 List of Test Points
  7. 6 Test Procedure
    1. 6.1 Line/Load Regulation and Efficiency Measurement Procedure
    2. 6.2 Output Ripple Test
    3. 6.3 Measuring Improved Light Load Efficiency
    4. 6.4 Control Architecture and OVP Select
    5. 6.5 Overcurrent Trip Level and Output Discharge Select
  8. 7 Performance Data and Typical Characteristic Curves
    1. 7.1 Efficiency
    2. 7.2 Load Regulation
    3. 7.3 Bode Plot
    4. 7.4 Transient Response
    5. 7.5 Output Ripple and Switch Node
    6. 7.6 Turn-On Waveform
    7. 7.7 Turn-Off Waveform
  9. 8 EVM Assembly Drawing and PCB Layout
  10. 9 List of Materials
  11. 10Revision History

3 Electrical Performance Specifications

Table 3-1 TPS51220A EVM-476 Electrical Performance Specifications
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Input Characteristics
Voltage range 8 12 20 V
Maximum input current 12 VIN, both outputs at 8 A 5.8 A
Output Characteristics
Output voltage, VOUT 1 5 V
Output load current, IOUT1 0 8 A
Output voltage regulation Line regulation: input voltage = 8 V to 20 V ±0.5%
Load regulation: output current = 0 A to 8 A ±1%
Output voltage ripple At IOUT1 = 8 A 50 mVpp
Output over current 12 A
Switching frequency 330 kHz
Peak efficiency 97.8%
Full load efficiency 96.9%
Output voltage, VOUT 2 3.3 V
Output load current, IOUT2 0 8 A
Output voltage regulation Line regulation: input voltage = 8 V to 20 V ±0.5%
Load regulation: output current = 0 A to 8 A ±1%
Output voltage ripple At IOUT = 8 A 50 mVpp
Output over current 12 A
Switching frequency 330 kHz
Peak efficiency 96%
Full load efficiency 95%