SLVS667B July   2006  – January 2016 TPS65022

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  VRTC Output and Operation With or Without Backup Battery
      2. 7.3.2  Step-Down Converters, VDCDC1, VDCDC2, and VDCDC3
      3. 7.3.3  Power Save Mode Operation
      4. 7.3.4  Low Ripple Mode
      5. 7.3.5  Soft-Start
      6. 7.3.6  100% Duty Cycle Low Dropout Operation
      7. 7.3.7  Active Discharge When Disabled
      8. 7.3.8  Power Good Monitoring
      9. 7.3.9  Low Dropout Voltage Regulators
      10. 7.3.10 Undervoltage Lockout
      11. 7.3.11 Power-Up Sequencing
      12. 7.3.12 System Reset + Control Signals
        1. 7.3.12.1 DEFLDO1 and DEFLDO2
        2. 7.3.12.2 Interrupt Management and the INT Pin
    4. 7.4 Device Functional Modes
    5. 7.5 Programming
      1. 7.5.1 Serial Interface
    6. 7.6 Register Maps
      1. 7.6.1 VERSION Register Address: 00h (read only)
      2. 7.6.2 PGOODZ Register Address: 01h (read only)
      3. 7.6.3 MASK Register Address: 02h (read/write) Default Value: C0h
      4. 7.6.4 REG_CTRL Register Address: 03h (read/write) Default Value: FFh
      5. 7.6.5 CON_CTRL Register Address: 04h (read/write) Default Value: B1h
      6. 7.6.6 CON_CTRL2 Register Address: 05h (read/write) Default Value: 40h
      7. 7.6.7 DEFCORE Register Address: 06h (read/write) Default Value: 14h/1Eh
      8. 7.6.8 DEFSLEW Register Address: 07h (read/write) Default Value: 06h
      9. 7.6.9 LDO_CTRL Register Address: 08h (read/write) Default Value: set with DEFLDO1 and DEFLDO2
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Input Voltage Connection
      2. 8.1.2 Unused Regulators
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Inductor Selection for the DC-DC Converters
        2. 8.2.2.2 Output Capacitor Selection
        3. 8.2.2.3 Input Capacitor Selection
        4. 8.2.2.4 Output Voltage Selection
        5. 8.2.2.5 VRTC Output
        6. 8.2.2.6 LDO1 and LDO2
        7. 8.2.2.7 TRESPWRON
        8. 8.2.2.8 VCC-Filter
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

9 Power Supply Recommendations

For a supply voltage on pins VCC, VINDCDC1, VINDCDC2 and VINDCDC3 below 3 V, TI recommends enabling the DCDC1, DCDC2 and DCDC3 converters in sequence. If all 3 step-down converters are enabled at the same time while the supply voltage is close to the internal reset detection threshold, a reset may be generated during power-up. Therefore TI recommends enabling the DC-DC converter in sequence. This can be done by driving one or two of the enable pins with a RC delay or by driving the enable pin by the output voltage of one of the other step-down converters. If a voltage above 3 V is applied on pin VBACKUP while VCC and VINDCDCx is below 3 V, there is no restriction in the power-up sequencing as VBACKUP will be used to power the internal circuitry.
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