SLVS704C November   2011  – January 2017 TPS65135

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 Advanced Power-Save Mode for Light-Load Efficiency
      2. 7.3.2 Buck-Boost Mode Operation
      3. 7.3.3 Inherently Good Line-Transient Regulation
      4. 7.3.4 Overvoltage Protection
      5. 7.3.5 Short-Circuit Protection
      6. 7.3.6 Soft-Start Operation
      7. 7.3.7 Output-Current Mismatch
      8. 7.3.8 Setting the Output Voltages
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operation with 2.5 V ≤ VI ≤ 5.5 V
      2. 7.4.2 Operation with VI < 2.5 V
      3. 7.4.3 Operation with VI > 5.5 V
      4. 7.4.4 Operation with EN
  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 Choosing a Suitable Inductor
        2. 8.2.2.2 Choosing Suitable Input and Output Capacitors
        3. 8.2.2.3 Choosing Suitable Feedback Resistors
        4. 8.2.2.4 Measurement Circuit
      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 Receiving Notification of Documentation Updates
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Single-Inductor, Multiple-Output Topology
  • 2.5-V to 5.5-V Input Voltage Range
  • 750-mW Output Power at VI = 2.9 V
  • Positive Output Voltages Up to 6 V
  • Negative Output Voltage Down to –7 V
  • 1% Output Voltage Accuracy
  • Up to 50% Output Current Mismatch Allowed
  • Excellent Line Regulation
  • Advanced Power-Save Mode for Light-Load
    Efficiency
  • Low-Noise Operation
  • Out-of-Audio Mode
  • Short-Circuit Protection
  • Thermal Shutdown
  • 3-mm × 3-mm Thin QFN Package

2 Applications

  • AMOLED Display Power Supplies
  • LCD Power Supplies
  • Split-Rail Power Supplies for Op-Amps, Data Converters, Data Interfaces, etc.

3 Description

The TPS65135 device is a high-efficiency split-rail power supply. Thanks to its single-inductor, multiple-output (SIMO) topology, the converter uses very few external components. The device operates with a buck-boost topology and generates positive and negative output voltages above or below the input supply voltage. The SIMO topology achieves excellent line and load regulation, which is necessary, for example, to avoid disturbance of a mobile phone display as a result of input voltage variations that occur during transmit periods in mobile communication systems. The device can also be used as a general-purpose split-rail supply as long as the output current mismatch between the rails is less than 50%.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS65135 WQFN (16) 3.00 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Typical Application Schematic

TPS65135 Schem_01_SLVS704.gif