SLVSBI7C July   2012  – April 2015 TPS22908

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Options
  6. 6 Pin Configuration and 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 Switching Characteristics
    7. 7.7 Typical Characteristics
      1. 7.7.1 Typical DC Characteristics
      2. 7.7.2 Typical Switching Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 ON/OFF Control
      2. 9.3.2 Quick Output Discharge
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Input Capacitor (Optional)
      2. 10.1.2 Output Capacitor (Optional)
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Managing Inrush Current
        2. 10.2.2.2 VIN to VOUT Voltage Drop
      3. 10.2.3 Application Curve
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
    3. 12.3 Thermal Considerations
  13. 13Device and Documentation Support
    1. 13.1 Trademarks
    2. 13.2 Electrostatic Discharge Caution
    3. 13.3 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Integrated P-Channel Load Switch
  • Input Voltage: 1 V to 3.6 V
  • 1 A Maximum Continuous Switch Current
  • On-Resistance (Typical Values)
    • RON = 28 mΩ at VIN = 3.6 V
    • RON = 33 mΩ at VIN = 2.5 V
    • RON = 42 mΩ at VIN = 1.8 V
    • RON = 70 mΩ at VIN = 1.2 V
  • Maximum Quiescent Current = 1 µA
  • Maximum Shutdown Current = 1 µA
  • Low Control Input Thresholds Enable Use of 1.2-V, 1.8-V, 2.5-V, and 3.3-V Logic
  • Controlled Slew Rate to Avoid Inrush Currents
    • tR = 105 µs at VIN = 3.6V
  • Four Terminal Wafer-Chip-Scale Package (WCSP)
    • Nominal Dimensions - See Addendum for Details
    • 0.9 mm × 0.9 mm, 0.5-mm Pitch, 0.6-mm Height
  • Quick Output Discharge (QOD)

2 Applications

  • Battery Powered Equipment
  • Portable Industrial Equipment
  • Portable Medical Equipment
  • Portable Media Players
  • Point of Sale Terminal
  • GPS Devices
  • Digital Cameras
  • Portable Instrumentation
  • Smartphones and Tablets

3 Description

The TPS22908 is a small, low RON load switch with controlled turn on. The device contains a P-channel MOSFET that operates over an input voltage range of 1 V to 3.6 V. The switch is controlled by an on/off input (ON), which is capable of interfacing directly with low-voltage control signals.

The TPS22908 is available in a space-saving 4-terminal WCSP with 0.5 mm pitch (YZT). The device is characterized for operation over the free-air temperature range of –40°C to 85°C.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS22908 DSBGA (4) 0.9mm x 0.9mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

Typical Application

TPS22908 typ_app_lvsbi7.gif