SLVU434A February   2011  – January 2022 TPS53125 , TPS53126 , TPS53127

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Description
    2. 1.2 Application
    3. 1.3 Features
  3. 2Electrical Performance Specifications
  4. 3TPS53127EVM-614 Schematic
  5. 4Connector and Test Point Descriptions
    1. 4.1 Enable Switches (SW1 and SW2)
    2. 4.2 Switching Frequency Select Switch (SW3)
    3. 4.3 Test Point Descriptions
      1. 4.3.1 Input Voltage Monitoring (TP3 and TP9)
      2. 4.3.2 Channel 1 Output Voltage Monitoring (TP4 and TP8)
      3. 4.3.3 Channel 2 Output Voltage Monitoring (TP6 and TP7)
      4. 4.3.4 Soft-Start Voltage Monitoring (TP1, TP2, and TP3)
      5. 4.3.5 Switching Node Monitoring (TP3, TP5, and TP11)
      6. 4.3.6 5-V Regulator Output Monitoring (TP3 and TP10)
  6. 5Test Setup
    1. 5.1 Equipment
      1. 5.1.1 Voltage Source
      2. 5.1.2 Meters
      3. 5.1.3 Loads
      4. 5.1.4 Oscilloscope
      5. 5.1.5 Recommended Wire Gauge
      6. 5.1.6 Other
    2. 5.2 Equipment Setup
      1. 5.2.1 Procedure
      2. 5.2.2 Diagram
    3. 5.3 Start-Up/Shutdown Procedure
    4. 5.4 Output Ripple Voltage Measurement Procedure
    5. 5.5 Equipment Shutdown
  7. 6TPS53127EVM-614 Test Data
    1. 6.1 Efficiency
    2. 6.2 Line and Load Regulation
    3. 6.3 Output Voltage Ripple and Switching Node Waveforms
    4. 6.4 Switch Node
  8. 7TPS53127EVM-614 EVM Assembly Drawings and Layout
  9. 8Bill of Materials
  10. 9Revision History

2 Electrical Performance Specifications

Table 2-1 TPS53127EVM-614 Electrical and Performance Specifications
Parameter Notes and Conditions MIN TYP MAX UNIT
INPUT CHARACTERISTICS
VIN Input voltage 8 12 22 V
IIN Input current VIN = 12 V, IOUT1 = 4 A, IOUT2 = 4 A — 1.2 1.5 A
No load input current VIN = 12 V, IOUT = 0 A — 20 35 mA
VIN_UVLO Input UVLO IOUT = 4 A 4.0 4.2 4.5 V
OUTPUT CHARACTERISTICS
VOUT1 Output voltage 1 VIN = 12 V, IOUT1 = 2 A 1.03 1.05 1.07 V
Line regulation VIN = 8 V to 22 V — — 1%
Load regulation IOUT1 = 0 A to 4 A — — 1%
VOUT1_rip Output voltage ripple VIN = 12 V, IOUT2 = 4 A — - 30 mVpp
IOUT1 Output current 1 VIN = 8 V to 22 V 0 4 A
VOUT2 Output voltage 2 VIN = 12 V, IOUT2 = 2 A 1.78 1.80 1.82 V
Line regulation VIN = 8 V to 22 V — — 1%
Load regulation IOUT2 = 0 A to 4 A — — 1%
VOUT2_rip Output voltage ripple VIN = 12 V, IOUT2 = 4 A — — 30 mVpp
IOUT2 Output current 2 VIN = 8 V to 22 V 0 4 A
SYSTEMS CHARACTERISTICS
FSW Switching frequency 350 700 800 kHz
ηpk Peak efficiency VIN = 12 V — 85% —
η Full load efficiency VIN = 12 V, IOUT1 = 4 A — 83% —