SLUU522A August   2011  – January 2022

 

  1.   Trademarks
  2. 1 Description
    1. 1.1 Typical Applications
    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/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  Line 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 TPS53355EVM-743 Electrical Performance Specifications
Parameters Test Conditions Min Typ Max Units
Input Characteristics
Voltage range VIN 8 12 14 V
Maximum input current VIN = 8 V, IO = 30 A 6.3 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 – 30 A) 1 %
Output voltage ripple VIN = 12 V, IO = 30 A 20 mVpp
Output load current 0 30 A
Output overcurrent 34 A
Systems Characteristics
Switching frequency 500 kHz
Peak efficiency VIN = 12 V, 1.5 V/10 A 91.87 %
Ful-load efficiency VIN = 12 V, 1.5V/30 A 89.46 %
Operating temperature 25 °C
Note:

Jumpers are set to default locations; see Section 5 of this user’s guide.