SNVU658B March   2020  – May 2021 TPS54J060 , TPS54J061

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Background
    2. 1.2 Performance Specification Summary
    3. 1.3 Modifications
      1. 1.3.1 Output Voltage Setpoint
      2. 1.3.2 Frequency and Operation Mode Setting
      3. 1.3.3 Enable Pin Selection
      4. 1.3.4 Adjustable UVLO
  3. 2Test Setup and Results
    1. 2.1  Input/Output Connections
    2. 2.2  Start Up Procedure
    3. 2.3  Efficiency
    4. 2.4  Load and Line Regulation
    5. 2.5  Load Transients
    6. 2.6  Loop Characteristics
    7. 2.7  Output Voltage Ripple
    8. 2.8  Input Voltage Ripple
    9. 2.9  Powering Up and Down with EN
    10. 2.10 Powering Up and Down With VIN
    11. 2.11 Start-Up Into Pre-Bias
    12. 2.12 Current Limit
  4. 3Schematic, List of Materials, and Layout
    1. 3.1 Schematic
    2. 3.2 List of Materials
    3. 3.3 Layout
  5.   Revision History

1.2 Performance Specification Summary

A summary of the TPS54J060EVM-067 and TPS54J061EVM-067 performance specifications is provided in Table 1-2. Specifications are given for an ambient temperature of 25°C, input voltage of VIN = 12 V, internal VCC and an output voltage of 1.8V, unless otherwise noted. The TPS54J060EVM-067 and TPS54J061EVM-067 are designed for VIN = 8 V to 16 V, however, operation with a lower input voltage is possible by modifying the adjustable under voltage lockout (UVLO) or by forcing the EN pin above its turn on threshold.

Table 1-2 Electrical Performance Specifications
PARAMETERTEST CONDITIONSMINTYPMAXUNITS
VIN voltage range81216V
VIN turn on voltageR2 = 499 kΩ, R5 = 100 kΩ7.4V
VIN turn off voltageR2 = 499 kΩ, R5 = 100 kΩ6.2V
VIN input currentFCCM, VIN = 12 V, IO = 0 A10.2mA
DCM, VIN = 12 V, IO = 0 A, Internal VCC1.1mA
VIN = 8 V, IO = 6 A1.48A
Output voltage1.8V
Output current rangeVIN = 4 V to 16 V06A
Load and line regulationVIN = 4 V to 16 V, IO = 6 A+/– 0.1%
Load transient responseIO = 0.1 A to 3.1 A , 1 A/µsVoltage change20mV
Recovery time<10µs
IO = 0.1 A to 3.1 A , 1 A/µsVoltage change20mV
Recovery time<10µs
Loop BandwidthVIN = 12 V, IO = 3 A CC103kHz
Phase MarginVIN = 12 V, IO = 3 A CC72.6degree
Input voltage rippleVIN = 12 V, IO = 6 A90mVPP
Output voltage rippleVIN = 12 V, IO = 6 A5mVPP
IC case temperatureVIN = 12 V, IO = 6 A52°C
Soft start timeTPS54J060, CSS = 22 nF2ms
Soft start time TPS54J061, CSS = 22 nF 1.5 ms
Switching frequencyMODE pin short to VCC or short to AGND1100kHz
Valley current limitRTRIP = 4.99 kΩ6A