SLVS762C June   2007  – July 2015 TPS62240 , TPS62242 , TPS62243

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 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Undervoltage Lockout
      2. 8.3.2 Mode Selection
      3. 8.3.3 Enable
      4. 8.3.4 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Soft Start
      2. 8.4.2 Power Save Mode
      3. 8.4.3 100% Duty Cycle Low Dropout Operation
      4. 8.4.4 Short-Circuit Protection
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Output Voltage Setting
        2. 9.2.2.2 Output Filter Design (Inductor and Output Capacitor)
          1. 9.2.2.2.1 Inductor Selection
          2. 9.2.2.2.2 Output Capacitor Selection
          3. 9.2.2.2.3 Input Capacitor Selection
      3. 9.2.3 Application Curves
    3. 9.3 System Examples
      1. 9.3.1 TPS62240, Adjustable Output Voltage 1.8 V
      2. 9.3.2 TPS62243, Fixed Output Voltage 1.8 V
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Examples
  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 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

6 Pin Configuration and Functions

DDC Package
5-Pin SOT
Top View
TPS62240 TPS62242 TPS62243 po_lvs762_1.gif
DRV Package
6-Pin WSON
Top View
TPS62240 TPS62242 TPS62243 po_lvs762_2.gif

Pin Functions

PIN I/O DESCRIPTION
NAME WSON SOT
EN 4 3 I This is the enable pin of the device. Pulling this pin to low forces the device into shutdown mode. Pulling this pin to high enables the device. This pin must be terminated.
GND 6 2 PWR GND supply pin.
FB 3 4 I Feedback pin for the internal regulation loop. Connect the external resistor divider to this pin. In case of fixed output voltage option, connect this pin directly to the output capacitor.
MODE 2 — I This pin is only available at WSON package option. MODE pin = High forces the device to operate in fixed-frequency PWM mode. MODE pin = Low enables the power save mode with automatic transition from PFM mode to fixed-frequency PWM mode.
SW 1 5 O This is the switch pin and is connected to the internal MOSFET switches. Connect the inductor to this terminal.
VIN 5 1 PWR VIN power supply pin.
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