SNVSAH4C December   2015  – February 2018 LMR23610

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Schematic
      2.      Efficiency vs Load VIN = 12 V
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin 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 Timing Requirements
    7. 6.7 Switching Characteristics
    8. 6.8 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 Fixed Frequency Peak Current Mode Control
      2. 7.3.2 Adjustable Output Voltage
      3. 7.3.3 EN/SYNC
      4. 7.3.4 VCC, UVLO
      5. 7.3.5 Minimum ON-Time, Minimum OFF-Time and Frequency Foldback at Dropout Conditions
      6. 7.3.6 Internal Compensation and CFF
      7. 7.3.7 Bootstrap Voltage (BOOT)
      8. 7.3.8 Overcurrent and Short-Circuit Protection
      9. 7.3.9 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode
      2. 7.4.2 Active Mode
      3. 7.4.3 CCM Mode
      4. 7.4.4 Light Load Operation
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1  Custom Design With WEBENCH® Tools
        2. 8.2.2.2  Output Voltage Setpoint
        3. 8.2.2.3  Switching Frequency
        4. 8.2.2.4  Inductor Selection
        5. 8.2.2.5  Output Capacitor Selection
        6. 8.2.2.6  Feed-Forward Capacitor
        7. 8.2.2.7  Input Capacitor Selection
        8. 8.2.2.8  Bootstrap Capacitor Selection
        9. 8.2.2.9  VCC Capacitor Selection
        10. 8.2.2.10 Undervoltage Lockout Setpoint
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Compact Layout for EMI Reduction
      2. 10.1.2 Ground Plane and Thermal Considerations
      3. 10.1.3 Feedback Resistors
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Custom Design With WEBENCH® Tools
    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

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DDA|8
Thermal pad, mechanical data (Package|Pins)
Orderable Information

4 Revision History

Changes from B Revision (April 2017) to C Revision

  • Deleted "Automotive Battery Regulation" from ApplicationsGo
  • Changed "4.5 V" input range to "4-V... Input Range" in Features and ..."wide input range from 4.5 V..." to ".... wide input range from 4 V..." in DescriptionGo
  • Added "2.2-µF, 16-V" for VCC pin bypass capacitor Go
  • Changed ESD HBM value from "±2500" to "±2000"Go
  • Changed "4.5" in VIN row of Input voltage ROC table to "4" Go
  • Changed "4.5" to "4" in VIN row under POWER SUPPLYGo
  • Changed "3.4" to "3.3" in VIN_UVLO row under POWER SUPPLYGo
  • Changed "hysteresis" to "threshold", "0.4" to "3.3" in VIN_UVLO row under POWER SUPPLY; add min = 2.9 and max = 3.5 in same rowGo
  • Changed "VIN = 4.5 V to 36 V" in ISHDN row of POWER SUPPLY to "VIN = 12 V"Go
  • Changed "VIN = 4.5 V"... to "VIN = 4 V" in EC Test Conditions column starting with ENABLE (EN PIN)Go
  • Added "90" to MAX column of TON_MIN time under SW (SW PIN) Go
  • Changed operating from "4.5-V".... to "4-V"...in first sentence of OverviewGo
  • Changed "..when the input voltage is in the operating range 4.5 V..." to "...when the input voltage is in the operating range 4 V... in Active ModeGo
  • Changed "VOUT = 7 V to 36 V..." to "VIN = 7 V to 36 V..."Go

Changes from A Revision (July 2016) to B Revision

  • Changed the high side current max limit to 2.6 from 2.5 and low side current max limit to 2.1 from 1.9Go

Changes from * Revision (December 2015) to A Revision

  • Changed from Product Preview to Production Data and added all the remaing sections.Go