SNVS707G March   2011  – August 2016 LMZ23610

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 Synchronization Input
      2. 7.3.2 Current Sharing
      3. 7.3.3 Output Overvoltage Protection
      4. 7.3.4 Current Limit
      5. 7.3.5 Thermal Protection
      6. 7.3.6 Prebiased Start-Up
        1. 7.3.6.1 Tracking Supply Divider Option
    4. 7.4 Device Functional Modes
      1. 7.4.1 Discontinuous Conduction and Continuous Conduction Modes
  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 Design Steps
        2. 8.2.2.2 Enable Divider, RENT, RENB and RENHSelection
        3. 8.2.2.3 Output Voltage Selection
        4. 8.2.2.4 Soft-Start Capacitor Selection
        5. 8.2.2.5 COUT Selection
        6. 8.2.2.6 CIN Selection
        7. 8.2.2.7 Discontinuous Conduction and Continuous Conduction Mode Selection
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
    3. 10.3 Power Dissipation and Thermal Considerations
    4. 10.4 Power Module SMT Guidelines
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
      2. 11.1.2 Development Support
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Community Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Integrated Shielded Inductor
  • Simple PCB Layout
  • Frequency Synchronization Input (350 kHz to 600 kHz)
  • Current Sharing Capability
  • Flexible Startup Sequencing Using External Soft-start, Tracking and Precision Enable
  • Protection Against Inrush Currents and Faults Such as Input UVLO and Output Short Circuit
  • Junction Temperature Range –40°C to 125°C
  • Single Exposed Pad and Standard Pinout for Easy Mounting and Manufacturing
  • Fully Enabled for WEBENCH® Power Designer
  • Pin Compatible With LMZ22010/08, LMZ12010/08, LMZ23608/06H, and LMZ13610/08/06H
  • Performance Benefits
    • High Efficiency Reduces System Heat Generation
    • Low Radiated Emissions (EMI) Tested to EN55022 Class B Standard
    • Only 7 External Components
    • Low Output Voltage Ripple
    • No External Heat Sink Required
    • Simple Current Sharing for Higher Current Applications
  • Electrical Specifications
    • 50-W Maximum Total Output Power
    • Up to 10-A Output Current
    • Input Voltage Range 6 V to 36 V
    • Output Voltage Range 0.8 V to 6 V
    • Efficiency up to 92%
EN 55022:2006, +A1:2007, FCC Part 15 Subpart B, Tested on Evaluation Board with EMI Configuration
EN 55022:2006, +A1:2007, FCC Part 15 Subpart B, Tested on Evaluation Board with EMI Configuration

2 Applications

  • Point-of-load Conversions from 12-V and 24-V Input Rail
  • Time-Critical Projects
  • Space Constrained / High Thermal Requirement Applications
  • Negative Output Voltage Applications
    (See AN-2027, SNVA425)

3 Description

The LMZ23610 SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution capable of driving up to 10-A load. The LMZ23610 is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ23610 can accept an input voltage rail between 6 V and 36 V and can deliver an adjustable and highly accurate output voltage as low as 0.8 V. The LMZ23610 only requires two external resistors and three external capacitors to complete the power solution.

The LMZ23610 is a reliable and robust design with the following protection features: thermal shutdown, input undervoltage lockout, output overvoltage protection, short circuit protection, output current limit, and the device allows start-up into a prebiased output. The sync input allows synchronization over the 350- to 600-kHz switching frequency range.

Device Information(1)(2)

PART NUMBER PACKAGE BODY SIZE (NOM)
LMZ23610 NDY (11) 15.00 mm × 15.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.
  2. Peak reflow temperature equals 245°C. See SNAA214 for more details.

Simplified Application Schematic

LMZ23610 23610_SSch.gif

Efficiency 3.3-V Output at 25°C

LMZ23610 30151136.gif