SLVS530D SEPTEMBER   2005  – October 2015 TPS63700

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 Enable
      2. 7.3.2 Load Disconnect
      3. 7.3.3 Output Overvoltage Protection
      4. 7.3.4 Undervoltage Lockout
      5. 7.3.5 Overtemperature Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Soft-Start
      2. 7.4.2 PWM Operation
      3. 7.4.3 Power Save Mode Operation
      4. 7.4.4 Control
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Programming the Output Voltage: Converter
          1. 8.2.2.1.1 Inductor Selection
        2. 8.2.2.2 Capacitor Selection
          1. 8.2.2.2.1 Input Capacitor
          2. 8.2.2.2.2 Output Capacitors
        3. 8.2.2.3 Stabilizing the Control Loop
          1. 8.2.2.3.1 Feedback Divider
          2. 8.2.2.3.2 Compensation Capacitor
      3. 8.2.3 Application Curves
    3. 8.3 System Example
  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

1 Features

  • Adjustable Output Voltage Down to –15 V
  • 2.7-V to 5.5-V Input Voltage Range
  • Up to 360-mA Output Current
  • 1000-mA Typical Switch Current Limit
  • Up to 84% Efficiency
  • Typical 1.4-MHz Fixed-Frequency PWM
    Operation
  • Thermal Shutdown
  • Typical –19-V Output Overvoltage Protection
  • 1.5-μA Shutdown Current
  • Small 3-mm × 3-mm SON-10 Package (DRC)

2 Applications

  • Generic Negative Voltage Supply
  • Small-to-Medium Size OLED Displays
  • Bias Supply

Efficiency vs Output Current

TPS63700 eff_oi1_lvs530.gif

3 Description

The TPS63700 is an inverting DC/DC converter generating a negative output voltage down to –15 V with output currents up to 360 mA, depending on input-voltage to output-voltage ratio. With a peak efficiency of 84%, the device is ideal for portable battery-powered equipment. The input voltage range of 2.7 V to 5.5 V allows the TPS63700 to be directly powered from a Li-ion battery, from 3-cell NiMH/NiCd, from a 3.3-V or 5-V supply rail.

The inverter operates with a fixed-frequency pulse width modulation (PWM) control topology. The device has an internal current limit, overvoltage protection, and a thermal shutdown for highest reliability under fault conditions.

A switching frequency of typically 1.4 MHz allows the use of small external components enabling a small solution size.

The TPS63700 comes in a small 3-mm × 3-mm SON-10 package.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS63700 VSON (10) 3.00 mm x 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

Typical Application Schematic

TPS63700 app_topo_lvs530.gif