SNVSB33 May   2018 LM3102-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application Schematic
      2.      Efficiency vs Load Current (VOUT = 3.3 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 Switching Characteristics
    7. 6.7 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  COT Control Circuit Overview
      2. 7.3.2  Start-Up Regulator (VCC)
      3. 7.3.3  Regulation Comparator
      4. 7.3.4  Zero Coil Current Detect
      5. 7.3.5  Overvoltage Comparator
      6. 7.3.6  Current Limit
      7. 7.3.7  N-Channel MOSFET and Driver
      8. 7.3.8  Soft Start
      9. 7.3.9  Thermal Protection
      10. 7.3.10 Thermal Derating
    4. 7.4 Device Functional Modes
      1. 7.4.1 ON-Time Timer, Shutdown
  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 Custom Design With WEBENCH® Tools
        2. 8.2.2.2 Design Steps for the LM3102-Q1 Application
        3. 8.2.2.3 External Components
      3. 8.2.3 Application Curve
    3. 8.3 System Examples
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
        1. 11.1.1.1 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

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

6.5 Electrical Characteristics

Specifications with standard type are for TJ = 25°C unless otherwise specified. Minimum and Maximum limits are specified through test, design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless otherwise stated the following conditions apply: VIN = 18 V, VOUT = 3.3 V.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
START-UP REGULATOR, VCC
VCC VCC output voltage CCC = 680 nF, no load 6 V
over the full Operating Junction Temperature (TJ) range 5 7.2
VIN – VCC VIN – VCC dropout voltage ICC = 2 mA 50 mV
over the full Operating Junction Temperature (TJ) range 200
ICC = 20 mA 350
over the full Operating Junction Temperature (TJ) range 570
IVCCL VCC current limit(1) VCC = 0 V 65 mA
over the full Operating Junction Temperature (TJ) range 40
VCC-UVLO VCC undervoltage lockout threshold (UVLO) VIN increasing 3.75 V
over the full Operating Junction Temperature (TJ) range 3.6 3.9
VCC-UVLO-HYS VCC UVLO hysteresis VIN decreasing – HTSSOP package 130 mV
tVCC-UVLO-D VCC UVLO filter delay 3 µs
IIN IIN operating current No switching, VFB = 1 V 0.7 mA
over the full Operating Junction Temperature (TJ) range 1
IIN-SD IIN operating current, Device shutdown VEN = 0 V 25 µA
over the full Operating Junction Temperature (TJ) range 40
(1) VCC provides self bias for the internal gate drive and control circuits. Device thermal limitations limit external loading.