JAJSA67I April   2004  – February 2019 LM2743

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      代表的なアプリケーションの図
  4. 4 改訂履歴
  5. 5 概要（続き）
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Start Up and Soft-Start
      2. 8.3.2  Normal Operation
      3. 8.3.3  Tracking a Voltage Level
      4. 8.3.4  Tracking Voltage Slew Rate
      5. 8.3.5  Sequencing
      6. 8.3.6  SD Pin Impedance
      7. 8.3.7  MOSFET Gate Drivers
      8. 8.3.8  Power Good Signal
      9. 8.3.9  UVLO
      10. 8.3.10 Current Limit
      11. 8.3.11 Foldback Current Limit
    4. 8.4 Device Functional Modes
      1. 8.4.1 Shutdown
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Synchronous Buck Converter Typical Application using LM2743
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Custom Design With WEBENCH® Tools
          2. 9.2.1.2.2 Duty Cycle Calculation
          3. 9.2.1.2.3 Input Capacitor
          4. 9.2.1.2.4 Output Inductor
          5. 9.2.1.2.5 Output Capacitor
          6. 9.2.1.2.6 MOSFETs
          7. 9.2.1.2.7 Support Components
          8. 9.2.1.2.8 Control Loop Compensation
          9. 9.2.1.2.9 Efficiency Calculations
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Example Circuit 1
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Bill of Materials
      3. 9.2.3 Example Circuit 2
        1. 9.2.3.1 Design Requirements
        2. 9.2.3.2 Detailed Design Procedure
        3. 9.2.3.3 Bill of Materials
      4. 9.2.4 Example Circuit 3
        1. 9.2.4.1 Design Requirements
        2. 9.2.4.2 Detailed Design Procedure
        3. 9.2.4.3 Bill of Materials
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12デバイスおよびドキュメントのサポート
    1. 12.1 デバイス・サポート
      1. 12.1.1 開発サポート
        1. 12.1.1.1 WEBENCH®ツールによるカスタム設計
    2. 12.2 ドキュメントの更新通知を受け取る方法
    3. 12.3 コミュニティ・リソース
    4. 12.4 商標
    5. 12.5 静電気放電に関する注意事項
    6. 12.6 Glossary
  13. 13メカニカル、パッケージ、および注文情報

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

9.2.2.3 Bill of Materials

Table 1. Bill of Materials

PART PART NUMBER TYPE PACKAGE DESCRIPTION VENDOR
U1 LM2743 Synchronous Controller TSSOP-14 TI
Q1 FDS6898A Dual N-MOSFET SOIC-8 20 V, 10 mΩ at 4.5 V, 16 nC Fairchild
D1 MBR0520LTI Schottky Diode SOD-123
L1 DO3316P-472 Inductor 4.7 µH, 4.8 Arms, 18 mΩ Coilcraft
CIN1 16SP100M Aluminum Electrolytic 10mm x 6mm 100 µF, 16 V, 2.89 Arms Sanyo
CO1 6SP220M Aluminum Electrolytic 10mm x 6mm 220 µF, 6.3 V, 3.1 Arms Sanyo
CCC, CBOOT, CIN2, CO2 VJ1206Y104KXXA Capacitor 1206 0.1 µF, 10% Vishay
CC3 VJ0805Y332KXXA Capacitor 805 3300 pF, 10% Vishay
CSS VJ0805A123KXAA Capacitor 805 12 nF, 10% Vishay
CC2 VJ0805A821KXAA Capacitor 805 820 pF 10% Vishay
CC1 VJ0805A220KXAA Capacitor 805 22 pF, 10% Vishay
RFB2 CRCW08051002F Resistor 805 10.0 kΩ 1% Vishay
RFB1 CRCW08054991F Resistor 805 4.99 kΩ1% Vishay
RFADJ CRCW08051103F Resistor 805 110 kΩ 1% Vishay
RC2 CRCW08052101F Resistor 805 2.1 kΩ 1% Vishay
RCS CRCW08052101F Resistor 805 2.1 kΩ 1% Vishay
RCC CRCW080510R0F Resistor 805 10.0 Ω 1% Vishay
RC1 CRCW08055492F Resistor 805 54.9 kΩ 1% Vishay
RPULL-UP CRCW08051003J Resistor 805 100 kΩ 5% Vishay