SLUSD87A March   2018  – January 2024 LMR14010A

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Fixed Frequency PWM Control
      2. 6.3.2 Bootstrap Voltage (CB)
      3. 6.3.3 Setting the Output Voltage
      4. 6.3.4 Enable ( SHDN ) and VIN Undervoltage Lockout
      5. 6.3.5 Current Limit
      6. 6.3.6 Thermal Shutdown
    4. 6.4 Device Functional Modes
      1. 6.4.1 Continuous Conduction Mode
      2. 6.4.2 Eco-mode
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
        1. 7.2.1.1 Step-By-Step Design Procedure
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Custom Design With WEBENCH® Tools
        2. 7.2.2.2 Output Inductor Selection
        3. 7.2.2.3 Output Capacitor Selection
        4. 7.2.2.4 Schottky Diode Selection
        5. 7.2.2.5 Input Capacitor Selection
        6. 7.2.2.6 Bootstrap Capacitor Selection
      3. 7.2.3 Application Performance Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
        1. 8.1.1.1 Custom Design With WEBENCH® Tools
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

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

5.5 Electrical Characteristics

VIN = 12 V, SHDN = VIN, TJ = 25°C, unless otherwise noted.
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
INPUT POWER SUPPLY
VINOperating input voltage 440V
Shutdown supply currentEN = 0 V13µA
Undervoltage lockout thresholdsRising4V
Falling3V
IQEco-mode, no load, VIN = 12 V, not switching30µA
SHDN AND UVLO
Rising SHDN Threshold Voltage1.051.251.38V
SHDN PIN currentSHDN = 2.3 V–4.2µA
SHDN = 0.9 V–1µA
Hysteresis current–3µA
HIGH-SIDE MOSFET
On-resistanceVIN = 12 V, CB to SW = 5.8 V500mΩ
tON-MIN(1)95ns
DMAX: Maximum duty cycle(1)96%
VFB: Feedback voltage0.740.7650.79V
CURRENT LIMIT
Current limit thresholdVIN = 12 V1500mA
ƒSWSwitching frequency550700850kHz
THERMAL PERFORMANCE
TSHUTDOWNThermal shutdown trip point(1)170°C
THYS(1)Hysteresis10°C
(1) Specified by design.