SLVSC58B June   2016  – March 2019 TPS63070

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Schematic
      2.      Efficiency vs Output Current; Vo = 5 V
  4. 4 Revision History
  5. 5 Device Comparison Table
  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 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram TPS63070
    3. 8.3 Functional Block Diagram TPS630701
    4. 8.4 Feature Description
      1. 8.4.1  Control Loop Description
      2. 8.4.2  Precise Enable
      3. 8.4.3  Power Good
      4. 8.4.4  Soft Start
      5. 8.4.5  PS/SYNC
      6. 8.4.6  Short Circuit Protection
      7. 8.4.7  VSEL and FB2 pins
      8. 8.4.8  Overvoltage Protection
      9. 8.4.9  Undervoltage Lockout
      10. 8.4.10 Overtemperature Protection
    5. 8.5 Device Functional Modes
      1. 8.5.1 Power Save Mode
      2. 8.5.2 Current Limit
      3. 8.5.3 Output Discharge Function (TPS630702 only)
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application for adjustable version
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Programming The Output Voltage
        2. 9.2.2.2 Inductor Selection
        3. 9.2.2.3 Capacitor Selection
          1. 9.2.2.3.1 Input Capacitor
          2. 9.2.2.3.2 Output Capacitor
      3. 9.2.3 Application Curves
    3. 9.3 Typical Application for Fixed Voltage Version
      1. 9.3.1 Design Requirements
      2. 9.3.2 Detailed Design Procedure
      3. 9.3.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Thermal Information
  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 Related Links
    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

9.2.2.1 Programming The Output Voltage

While the output voltage of the TPS63070 is adjustable, the TPS630701 is set to a fixed voltage. For fixed output versions, the FB pin must be connected to the output directly. The adjustable version can be programmed for output voltages from 2.5V to 9V by using a resistive divider from VOUT to GND. The voltage at the FB pin (VREF)is regulated to 800mV. The value of the output voltage is set by the selection of the resistive divider from Equation 6 . It is recommended to choose resistor values which allow a current of at least 2uA, meaning the value of R2 shouldn't exceed 400kΩ. Lower resistor values are recommended for highest accuracy and most robust design.

Equation 6. TPS63070 SLVSAG7_eqvout.gif

Table 4. Typical Resistor Values

Output Voltage R1 R2
3.3 V 470 kΩ 150 kΩ
5.0 V 680 kΩ 130 kΩ
5.3 V 560 kΩ 100 kΩ
5.5 V 300 kΩ 51 kΩ
6.5 V 360 kΩ 51 kΩ
9 V 402 kΩ 39 kΩ