SLUU420A May   2010  – February 2022 TPS51217

 

  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
      1. 4.1.1 Voltage Source
      2. 4.1.2 Multimeters
      3. 4.1.3 Pulse Generator
      4. 4.1.4 Output Load
      5. 4.1.5 Oscilloscope
      6. 4.1.6 Fan
      7. 4.1.7 Recommended Wire Gauge
    2. 4.2 Recommended Test Setup
      1. 4.2.1 Input Connections
      2. 4.2.2 Output Connections
      3. 4.2.3 Other Connections
    3. 4.3 List of Test Points
  6. 5 Test Procedure
    1. 5.1 Line/Load Regulation and Efficiency Measurement Procedure
    2. 5.2 Dynamic Output Voltage Transition Measurement Procedure
    3. 5.3 Equipment Shutdown
  7. 6 Performance and Typical Characteristic Curves
    1. 6.1 Efficiency
    2. 6.2 Load Regulation
    3. 6.3 Line Regulation
    4. 6.4 Transient Response
    5. 6.5 Output Ripple
    6. 6.6 Switch-Node Voltage
    7. 6.7 Start and Stop
    8. 6.8 Dymamic Output Voltage Transitions
  8. 7 EVM Assembly Drawing and PCB Layouts
  9. 8 List of Materials
  10. 9 References
  11. 10Revision History

2 Electrical Performance Specifications

Table 2-1 TPS51217EVM Electrical Performance Specifications
SPECIFICATION TEST CONDITIONS MIN TYP MAX UNITS
INPUT
VIN Input voltage range 8 12 20 V
IMAX Maximum input current VIN = 8 V, IOUT = 20 A 3 A
No load input current VIN = 8 V, IOUT = 0 A 0.01 mA
VV5IN Voltage range 4.5 5.0 5.5 V
IMAX Maximum input current VV5IN = 5 V, VIN = 12 V, IOUT = 20 A 15 mA
No load input current VV5IN = 5 V, VIN = 12 V, IOUT = 0 A 0.4 mA
OUTPUT
VOUT Output voltage VIN = 12 V, (VID1,VID0) = (0,0), IOUT = 10 A 0.9 V
VIN = 12 V, (VID1,VID0) = (0,1), IOUT = 10 A 1.0
VIN = 12 V, (VID1,VID0) = (1,0), IOUT = 10 A 1.1
VIN = 12 V, (VID1,VID0) = (0,0), IOUT = 10 A 1.2
IOUT Output current Output load current 20 A
Line Regulation 8 V ≤ VIN ≤ 20 V, VOUT = 0.9 V, IOUT = 20 A 0.3%
Load Regulation VIN = 12 V, VOUT = 0.9 V, 1 mA ≤ IOUT ≤ 20 A 0.4%
VRIPPLEL VIN = 12 V, VOUT = 0.9 V, IOUT = 20 A 29 mVP-P
IOC Output overcurrent 28
SYSTEM
fSW Switching frequency VIN = 8 V, VOUT = 0.9 V, IOUT = 10 A 340 kHz
Peak efficiency VIN = 12 V, VOUT = 0.9 88.8%
Full load efficiency VIN = 12 V, VOUT = 0.9 V, IOUT = 20 A 84.4%
TA Operating ambient temperature 25 °C