SLUU521A August   2011  – November 2021 TPS53353

 

  1.   Trademarks
  2. 1 Description
    1. 1.1 Typical Application
    2. 1.2 Features
  3. 2 Electrical Performance Specifications
  4. 3 Schematic
  5. 4 Test Setup
    1. 4.1 Test Equipment
    2. 4.2 Recommended Test Setup
  6. 5 Configurations
    1. 5.1 Switching Frequency Selection
    2. 5.2 Soft-Start Selection
    3. 5.3 Mode Selection
    4. 5.4 Enable Selection
  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 Test Point List
    4. 6.4 Equipment Shutdown
  8. 7 Performance Data and Typical Characteristic Curves
    1. 7.1  Efficiency
    2. 7.2  Load Regulation
    3. 7.3  Load Regulation
    4. 7.4  Enable Turn-On/ Turn-Off
    5. 7.5  Output Ripple
    6. 7.6  Switching Node
    7. 7.7  Output Transient With Auto-Skip Mode
    8. 7.8  Output Transient With FCCM Mode
    9. 7.9  Output 0.75-V Prebias Turn-On
    10. 7.10 Output Overcurrent and Short-Circuit Protection
    11. 7.11 Bode Plot
    12. 7.12 Thermal Image
  9. 8 EVM Assembly Drawing and PCB Layout
  10. 9 Bill of Materials
  11. 10Revision History

2 Electrical Performance Specifications

Table 2-1 TPS53353EVM-744 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 4.1 A
No-load input current VIN = 14 V, IO = 0 A with auto-skip mode 1 mA
Output Characteristics
Output voltage VOUT 1.5 V
Output voltage regulation Line regulation (VIN = 8 V – 14 V) 0.1 %
Load regulation (VIN = 12 V, IO = 0 A – 20 A) 1
Output voltage ripple VIN = 12 V, IO = 20 A 20 mVpp
Output load current 0 20 A
Output overcurrent 26 A
Systems Characteristics
Switching frequency 500 kHz
Peak efficiency VIN = 12 V, 1.5 V/10 A 91.87 %
Full-load efficiency VIN = 12 V, 1.5 V/20 A 91.38 %
Operating temperature 25 °C
Note:

Jumpers are set at the factory to default locations; for details, see Section 5 of this user’s guide.