SLVU728A May   2012  – December 2021 TPS53318 , TPS53319

 

  1. 1 Introduction
    1. 1.1 Typical Applications
    2. 1.2 Features
  2. 2 Electrical Performance Specifications
  3. 3 Schematic
  4. 4 Test Setup
    1. 4.1 Test Equipment
    2. 4.2 Recommended Test Setup
  5. 5 Configurations
    1. 5.1 Switching Frequency Selection
    2. 5.2 Soft Start Selection
    3. 5.3 Mode Selection
    4. 5.4 Enable Selection
  6. 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 List of Test Points
    4. 6.4 Equipment Shutdown
  7. 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 Pre-bias Turn-On
    10. 7.10 Output Overcurrent and Short Circuit Protection
    11. 7.11 Bode plot
    12. 7.12 Thermal Image
  8. 8 EVM Assembly Drawing and PCB Layout
  9. 9 Bill of Materials
  10. 10Revision History

2 Electrical Performance Specifications

Table 2-1 TPS53319EVM-136 Electrical Performance Specifications
PARAMETER(1) TEST CONDITIONS MIN TYP MAX UNITS
INPUT CHARACTERISTICS
Voltage range VIN 8 12 20 V
Maximum input current VIN = 8 V, IO = 14 A 2.874 A
No load input current VIN = 20 V, IO = 0 A with auto skip mode 0.7 mA
OUTPUT CHARACTERISTICS
Output voltage VOUT 1.5 V
Output voltage regulation Line regulation (VIN = 8 V–20 V) 0.1%
Load regulation (VIN = 12 V, IO = 0 A–14 A), auto-skip 1%
Output voltage ripple VIN = 12 V, IO = 14 A 15 mVpp
Output load current 0 14 A
Output over current 16 A
SYSTEMS CHARACTERISTICS
Switching frequency 500 kHz
Peak efficiency VIN = 12 V, 1.5 V/8 A 91.68%
Full load efficiency VIN = 12 V, 1.5 V/14 A 90.04%
Operating temperature 25 °C
(1) Note: Jumpers set to default locations. See Section 6.