JAJSQD9B january   2015  – june 2023 LV2862

PRODUCTION DATA  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
  7. 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
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Continuous Conduction Mode
      2. 7.3.2 Fixed Frequency PWM Control
      3. 7.3.3 Eco-mode
      4. 7.3.4 Bootstrap Voltage (CB)
      5. 7.3.5 Enable (SHDN) and VIN Undervoltage Lockout (UVLO)
      6. 7.3.6 Setting the Output Voltage
      7. 7.3.7 Current Limit
      8. 7.3.8 Thermal Shutdown
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
        1. 8.2.1.1 Design Guide – Step By Step Design Procedure
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Selecting the Switching Frequency
        2. 8.2.2.2 Output Inductor Selection
        3. 8.2.2.3 Output Capacitor Selection
        4. 8.2.2.4 Schottky Diode Selection
        5. 8.2.2.5 Input Capacitor Selection
          1. 8.2.2.5.1 Bootstrap Capacitor Selection
            1. 8.2.2.5.1.1 Typical Application Circuits
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 ドキュメントの更新通知を受け取る方法
    3. 9.3 サポート・リソース
    4. 9.4 Trademarks
    5. 9.5 静電気放電に関する注意事項
    6. 9.6 用語集
  11. 10Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

6.5 Electrical Characteristics

VIN = 12 V, SHDN = VIN. TJ = 25°C unless otherwise noted.

PARAMETER CONDITION MIN TYP MAX UNIT
VIN (Input Power Supply)
Operating input voltage 4 60 V
Shutdown supply current EN = 0 V 1 3 µA
Undervoltage lockout thresholds Rising 4 V
Falling 3 V
IQ Eco-mode, no load, VIN = 12 V, not switching 28 µA
SHDN and UVLO
Rising SHDN Threshold Voltage 1.05 1.25 1.38 V
SHDN PIN current SHDN = 2.3 V –4.2 µA
SHDN = 0.9 V –1 µA
Hysteresis current -3 µA
HIGH-SIDE MOSFET
On-resistance VIN = 12 V, CB to SW = 5.8 V 900 mΩ
tON-min fSW = 2.1 MHz 80 ns
DMAX : Maximum duty cycle 96%
VFB : Feedback voltage 0.74 0.765 0.79 V
CURRENT LIMIT
Peak Current limit threshold 1200 mA
fSW Switching frequency LV2862X 560 770 980 kHz
LV2862Y 1785 2100 2415
THERMAL PERFORMANCE
TSHUTDOWN Thermal shutdown trip point 170 ºC
Thys Hysteresis 10 ºC