JAJSAH6H January   2006  – October 2017 LM3100

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
  4. 4 改訂履歴
  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 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 Hysteretic Control Circuit Overview
    4. 7.4 Device Functional Modes
      1. 7.4.1 Start-up Regulator (VCC)
      2. 7.4.2 Regulation Comparator
      3. 7.4.3 Over-Voltage Comparator
      4. 7.4.4 ON-Time Timer, Shutdown
      5. 7.4.5 Current Limit
      6. 7.4.6 N-Channel Buck Switch and Driver
      7. 7.4.7 Soft-Start
      8. 7.4.8 Thermal Protection
  8. 8 Applications and Implementation
    1. 8.1 Applications Information
      1. 8.1.1 External Components
        1. 8.1.1.1 RFB1 and RFB2
        2. 8.1.1.2 RON
        3. 8.1.1.3 L
        4. 8.1.1.4 CVCC
        5. 8.1.1.5 CO and CO3
        6. 8.1.1.6 CIN and CIN3
        7. 8.1.1.7 CBST
        8. 8.1.1.8 CSS
        9. 8.1.1.9 CFB
    2. 8.2 Typical Application
  9. 9 Layout
    1. 9.1 Layout Guidelines
      1. 9.1.1 PC Board Layout
  10. 10デバイスおよびドキュメントのサポート
    1. 10.1 ドキュメントの更新通知を受け取る方法
    2. 10.2 コミュニティ・リソース
    3. 10.3 商標
    4. 10.4 静電気放電に関する注意事項
    5. 10.5 Glossary
  11. 11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

6.5 Electrical Characteristics

at TJ = 25°C, and VIN = 18 V, VOUT = 3.3 V (unless otherwise noted).(1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
START-UP REGULATOR, VCC
VCC Output voltage CCC = 680 nF, no load TJ = –40°C to 125°C 5.0 6.0 7.2 V
VIN - VCC Dropout voltage ICC = 2 mA TJ = –40°C to 125°C 50 140 mV
ICC = 20 mA TJ = –40°C to 125°C 350 570
IVCCL Current limit(1) VCC = 0 V TJ = –40°C to 125°C 40 65 mA
VCC-UVLO Under-voltage lockout threshold VIN increasing TJ = –40°C to 125°C 3.6 3.75 3.85 V
VCC-UVLO-HYS UVLO hysteresis VIN decreasing 130 mV
tVCC-UVLO-D UVLO filter delay 3 µs
IIN Operating current No switching, VFB = 1 V TJ = –40°C to 125°C 0.7 1 mA
IIN-SD Operating current, Device shutdown VEN = 0 V TJ = –40°C to 125°C 17 30 µA
SWITCHING CHARACTERISTICS
RDS-UP-ON Main MOSFET Rds(on) TJ = –40°C to 125°C 0.18 0.35 Ω
RDS- DN-ON Syn. MOSFET Rds(on) TJ = –40°C to 125°C 0.11 0.2 Ω
VG-UVLO Gate drive voltage UVLO VBST - VSW increasing TJ = –40°C to 125°C 3.3 4 V
SOFT-START
ISS SS pin source current VSS = 0.5 V TJ = –40°C to 125°C 6 8 9.8 µA
CURRENT LIMIT
ICL Syn. MOSFET current limit threshold 1.9 A
ON/OFF TIMER
tON ON timer pulse width VIN = 10 V, RON = 100 kΩ 1.38 µs
VIN = 30 V, RON = 100 kΩ 0.47
tON-MIN ON timer minimum pulse width 200 ns
tOFF OFF timer pulse width 260 ns
ENABLE INPUT
VEN EN Pin input threshold VEN rising TJ = –40°C to 125°C 1.236 1.26 1.285 V
VEN-HYS Enable threshold hysteresis VEN falling 90 mV
REGULATION and OVER-VOLTAGE COMPARATOR
VFB In-regulation feedback voltage VSS ≥ 0.8 V TJ = –40°C to 125°C 0.784 0.8 0.816 V
VSS ≥ 0.8 V TJ = –40°C to 125°C 0.788 0.812
VFB-OV Feedback over-voltage threshold TJ = –40°C to 125°C 0.894 0.920 0.940 V
IFB TJ = –40°C to 125°C 5 100 nA
THERMAL SHUTDOWN
TSD Thermal shutdown temperature TJ rising 165 °C
TSD-HYS Thermal shutdown temperature hysteresis TJ falling 20 °C
(1) VCC provides self bias for the internal gate drive and control circuits. Device thermal limitations limit external loading.