SLVSBR5C December   2012  – June  2015 TPS27082L

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 Dissipation Ratings
    7. 6.7 Typical Characteristics
      1. 6.7.1 PFET Q1 Minimum Safe Operating Area (SOA)
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
      1. 7.4.1 ON/OFF
      2. 7.4.2 Fastest Output Rise Time
      3. 7.4.3 Controlled Output Rise Time
  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 Configuring Q1 ON-Resistance
        2. 8.2.2.2 Configuring Turnon Slew Rate
        3. 8.2.2.3 Configuring Turnoff Delay
        4. 8.2.2.4 OFF Isolation Under VIN Transients
        5. 8.2.2.5 Low Voltage ON/OFF Interface
        6. 8.2.2.6 On-Chip Power Dissipation
      3. 8.2.3 Application Curve
    3. 8.3 System Examples
      1. 8.3.1 TFT LCD Module Inrush Current Control
      2. 8.3.2 Standby Power Isolation
      3. 8.3.3 Boost Regulator With True Shutdown
      4. 8.3.4 Single Module Multiple Power Supply Sequencing
      5. 8.3.5 Multiple Modules Interdependent Power Supply Sequencing
      6. 8.3.6 Multiple Modules Interdependent Supply Sequencing Without a GPIO Input
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Thermal Considerations
      1. 10.3.1 Improving Package Thermal Performance
  11. 11Device and Documentation Support
    1. 11.1 Community Resources
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Low ON-Resistance, High Current PFET
    • RON = 32 mΩ (Typical) at VGS = –4.5 V
    • RON = 44 mΩ (Typical) at VGS = –3.0 V
    • RON = 85 mΩ (Typical) at VGS = –1.8 V
    • RON = 97 mΩ (Typical) at VGS = –1.5 V
    • RON = 155 mΩ (Typical) at VGS = –1.2 V
  • Configurable Turn-ON and Turn-OFF Slew Rate
    • 10-µs Default Minimum Output Rise Time at VIN=5 V
  • Configurable Turnon and Turnoff Slew Rate
  • Supports a Wide Range of VIN 1.2 V Up to 8 V
  • Excellent OFF Isolation Even Under Fast Input Transients
  • 1.0V up to 8V NMOS Control Logic Interface With Configurable Hystersis
  • Fully Protected Against ESD (All Pins)
    • HBM 2000 V, CDM 500 V
  • Very Low ON-state Quiescent Current (Down to 1.2 µA)
  • Very Low OFF-state Leakage Current (Typical 100 nA)
  • Available in 2.9 mm × 1.6 mm x 0.75mm SOT-23 (DDC) Package

2 Applications

  • High-Side Load Switches
  • Inrush-current Controls
  • Power Sequencing and Controls
  • Stand-by Power Isolation
  • Portable Power Switches

3 Description

The TPS27082L IC is a high-side load switch that integrates a Power PFET and a control circuit in a tiny TSOT-23 package. TPS27082L requires very low ON-state quiescent current and offers very low OFF-state leakage thus optimizing system power efficiency.

TPS27082L ON/OFF logic interface features hysteresis, thus providing a robust logic interface even under very noisy operating conditions. TPS27082L ON/OFF interface supports direct interfacing to low voltage GPIOs down to 1 V. The TPS27082L level shifts ON/OFF logic signal to VIN levels without requiring an external level shifter.

TPS27082L features a novel OFF isolation circuit that prevents PMOS from turning ON in applications that may have fast transients, at the VIN pin when the load switch is in the OFF-state.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS27082DDC SOT (6) 2.90 mm × 1.60 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

TPS27082L typ_lvsbr5.gif