SLVSGZ4A June   2023  – June 2024 TPS6521905

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  System Control Thresholds
    6. 5.6  BUCK1 Converter
    7. 5.7  BUCK2, BUCK3 Converter
    8. 5.8  General Purpose LDOs (LDO1, LDO2)
    9. 5.9  General Purpose LDOs (LDO3, LDO4)
    10. 5.10 GPIOs and multi-function pins (EN/PB/VSENSE, nRSTOUT, nINT, GPO1, GPO2, GPIO, MODE/RESET, MODE/STBY, VSEL_SD/VSEL_DDR)
    11. 5.11 Voltage and Temperature Monitors
    12. 5.12 I2C Interface
    13. 5.13 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1  Power-Up Sequencing
      2. 6.3.2  Power-Down Sequencing
      3. 6.3.3  Push Button and Enable Input (EN/PB/VSENSE)
      4. 6.3.4  Reset to SoC (nRSTOUT)
      5. 6.3.5  Buck Converters (Buck1, Buck2, and Buck3)
      6. 6.3.6  Linear Regulators (LDO1 through LDO4)
      7. 6.3.7  Interrupt Pin (nINT)
      8. 6.3.8  PWM/PFM and Low Power Modes (MODE/STBY)
      9. 6.3.9  PWM/PFM and Reset (MODE/RESET)
      10. 6.3.10 Voltage Select pin (VSEL_SD/VSEL_DDR)
      11. 6.3.11 General Purpose Inputs or Outputs (GPO1, GPO2, and GPIO)
      12. 6.3.12 I2C-Compatible Interface
        1. 6.3.12.1 Data Validity
        2. 6.3.12.2 Start and Stop Conditions
        3. 6.3.12.3 Transferring Data
    4. 6.4 Device Functional Modes
      1. 6.4.1 Modes of Operation
        1. 6.4.1.1 OFF State
        2. 6.4.1.2 INITIALIZE State
        3. 6.4.1.3 ACTIVE State
        4. 6.4.1.4 STBY State
        5. 6.4.1.5 Fault Handling
    5. 6.5 Multi-PMIC Operation
    6. 6.6 NVM Programming
      1. 6.6.1 TPS6521905 default NVM settings
      2. 6.6.2 NVM programming in Initialize State
      3. 6.6.3 NVM Programming in Active State
    7. 6.7 User Registers
    8. 6.8 Device Registers
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Typical Application Example
      2. 7.2.2 Design Requirements
      3. 7.2.3 Detailed Design Procedure
        1. 7.2.3.1 Buck1, Buck2, Buck3 Design Procedure
        2. 7.2.3.2 LDO1, LDO2 Design Procedure
        3. 7.2.3.3 LDO3, LDO4 Design Procedure
        4. 7.2.3.4 VSYS, VDD1P8
        5. 7.2.3.5 Digital Signals Design Procedure
      4. 7.2.4 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Receiving Notification of Documentation Updates
    2. 8.2 Support Resources
    3. 8.3 Trademarks
    4. 8.4 Electrostatic Discharge Caution
    5. 8.5 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

5.13 Typical Characteristics

TPS6521905 Efficiency BUCK1
VIN = 5 V VOUT = 1.8 V TA = 25°C
Figure 5-1 Efficiency BUCK1
TPS6521905 BUCK1 Load-step response - High Bandwidth, forced PWM
VIN = 5.0 V VOUT = 0.75 V TA = 25 °C
IOUT = 100 mA to 1.1 A to 100 mA, trise=tfall=500ns COUT_total = 57 μF
Figure 5-3 BUCK1 Load-step response - High Bandwidth, forced PWM
TPS6521905 BUCK3 Load-step response - Low Bandwidth, forced PWM
VIN = 5.0 V VOUT = 1.2 V TA = 25 °C
IOUT = 1 mA to 1 A to 1 mA, trise=tfall=1μs COUT_total = 57 μF
Figure 5-5 BUCK3 Load-step response - Low Bandwidth, forced PWM
TPS6521905 LDO2 Load-step response
VIN = 3.3 V VOUT = 0.85 V TA = 25 °C
IOUT = 80 mA to 320 mA to 80 mA, trise=tfall=1μs COUT = 10 μF
Figure 5-7 LDO2 Load-step response
TPS6521905 LDO4 Load-step response
VIN = 3.3 V VOUT = 1.8 V TA = 25 °C
IOUT = 60 mA to 240 mA to 60 mA, trise=tfall=1μs COUT = 10 μF
Figure 5-9 LDO4 Load-step response
TPS6521905 Efficiency BUCK23
VIN = 5 V VOUT = 1.8 V TA = 25°C
Figure 5-2 Efficiency BUCK23
TPS6521905 BUCK2 Load-step response - Low Bandwidth, forced PWM
VIN = 5.0 V VOUT = 3.3 V TA = 25 °C
IOUT = 1 mA to 1 A to 1 mA, trise=tfall=1μs COUT_total = 57 μF
Figure 5-4 BUCK2 Load-step response - Low Bandwidth, forced PWM
TPS6521905 LDO1 Load-step response
VIN = 3.3 V VOUT = 1.8 V TA = 25 °C
IOUT = 80 mA to 320 mA to 80 mA, trise=tfall=1μs COUT = 10 μF
Figure 5-6 LDO1 Load-step response
TPS6521905 LDO3 Load-step response
VIN = 5 V VOUT = 3.3 V TA = 25 °C
IOUT = 60 mA to 240 mA to 60 mA, trise=tfall=1μs COUT = 10 μF
Figure 5-8 LDO3 Load-step response