SLVS927F March   2009  – July 2018 TPS65023-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Schematic
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Step-Down Converters, VDCDC1, VDCDC2, and VDCDC3
      2. 8.3.2 Soft Start
      3. 8.3.3 Active Discharge When Disabled
      4. 8.3.4 Power-Good Monitoring
      5. 8.3.5 Low-Dropout Voltage Regulators
      6. 8.3.6 Undervoltage Lockout
    4. 8.4 Device Functional Modes
      1. 8.4.1 VRTC Output and Operation With or Without Backup Battery
      2. 8.4.2 Power-Save Mode Operation (PSM)
      3. 8.4.3 Low-Ripple Mode
      4. 8.4.4 100% Duty-Cycle Low-Dropout Operation
      5. 8.4.5 System Reset and Control Signals
        1. 8.4.5.1 DEFLDO1 and DEFLDO2
        2. 8.4.5.2 Interrupt Management and the INT Pin
    5. 8.5 Programming
      1. 8.5.1 Power-Up Sequencing
      2. 8.5.2 Serial Interface
    6. 8.6 Register Maps
      1. 8.6.1 VERSION Register (address: 00h) Read-Only
      2. 8.6.2 PGOODZ Register (address: 01h) Read-Only
        1. Table 5. PGOODZ Register Field Descriptions
      3. 8.6.3 MASK Register (address: 02h)
      4. 8.6.4 REG_CTRL Register (address: 03h)
        1. Table 6. REG_CTRL Register Field Descriptions
      5. 8.6.5 CON_CTRL Register (address: 04h)
        1. Table 7. CON_CTRL Register Field Descriptions
      6. 8.6.6 CON_CTRL2 Register (address: 05h)
        1. Table 8. CON_CTRL2 Register Field Descriptions
      7. 8.6.7 DEFCORE Register (address: 06h)
        1. Table 9. DEFCORE Register Field Descriptions
      8. 8.6.8 DEFSLEW Register (address: 07h)
        1. Table 10. DEFSLEW Register Field Descriptions
      9. 8.6.9 LDO_CTRL Register (address: 08h)
        1. Table 11. LDO_CTRL Register Field Descriptions
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Reset Condition of DCDC1
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Inductor Selection for the DC-DC Converters
        2. 9.2.2.2 Output Capacitor Selection
        3. 9.2.2.3 Input Capacitor Selection
        4. 9.2.2.4 Output Voltage Selection
        5. 9.2.2.5 VRTC Output
        6. 9.2.2.6 LDO1 and LDO2
        7. 9.2.2.7 TRESPWRON
        8. 9.2.2.8 VCC Filter
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Community Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)
MIN NOM MAX UNIT
VCC Input voltage range step-down converters VCC, VINDCDC1, VINDCDC2, VINDCDC3 2.5 6 V
VO Output voltage range for VDCDC1 step-down converter(1) 0.6 VCC V
Output voltage range for VDCDC2 step-down converter(1) 0.6 VCC
Output voltage range for VDCDC3 step-down converter(1) 0.6 VCC
VINLDO Input voltage range for LDOs VINLDO1, VINLDO2 1.5 6.5 V
VO Output voltage range for LDOs VLDO1, VLDO2 1 VCC V
IO(DCDC1) Output current L1 1500 mA
Inductor at L1(2) 1.5 2.2 μH
CI(DCDC1) Input capacitor at VINDCDC1(2) 10 μF
CO(DCDC1) Output capacitor at VDCDC1(2) 10 22 μF
IO(DCDC2) Output current at L2 1200 mA
Inductor at L2(2) 1.5 2.2 μH
CI(DCDC2) Input capacitor at VINDCDC2(2) 10 μF
CO(DCDC2) Output capacitor at VDCDC2(2) 10 22 μF
IO(DCDC3) Output current at L3 1000 mA
Inductor at L3(2) 1.5 2.2 μH
CI(DCDC3) Input capacitor at VINDCDC3(2) 10 μF
CO(DCDC3) Output capacitor at VDCDC3(2) 10 22 μF
CI(VCC) Input capacitor at VCC(2) 1 μF
CI(VINLDO) Input capacitor at VINLDO(2) 1 μF
CO(VLDO1-2) Output capacitor at VLDO1, VLDO2(2) 2.2 μF
IO(VLDO1-2) Output current at VLDO1, VLDO2 200 mA
CO(VRTC) Output capacitor at VRTC(2) 4.7 μF
TA Operating ambient temperature –40 125 °C
TJ Operating junction temperature –40 125 °C
Resistor from VINDCDC3, VINDCDC2, and VINDCDC1 to VCC used for filtering(3) 1 10 Ω
(1) When using an external resistor divider at DEFDCDC3, DEFDCDC2, DEFDCDC1
(2) See Detailed Design Procedure for more information.
(3) Up to 3 mA can flow into VCC when all three converters are running in PWM. This resistor causes the UVLO threshold to be shifted accordingly.