JAJSQK8F april   2000  – july 2023 LP2980-ADJ

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 Output Enable
      2. 7.3.2 Dropout Voltage
      3. 7.3.3 Current Limit
      4. 7.3.4 Undervoltage Lockout (UVLO)
      5. 7.3.5 Output Pulldown
      6. 7.3.6 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Device Functional Mode Comparison
      2. 7.4.2 Normal Operation
      3. 7.4.3 Dropout Operation
      4. 7.4.4 Disabled
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 External Feedback Resistors
      2. 8.1.2 Recommended Capacitor Types
        1. 8.1.2.1 Recommended Capacitors for the New Chip
        2. 8.1.2.2 Recommended Capacitors for the Legacy Chip
      3. 8.1.3 Input and Output Capacitor Requirements
      4. 8.1.4 Feed-Forward Capacitor (CFF)
      5. 8.1.5 Reverse Current
      6. 8.1.6 Power Dissipation (PD)
      7. 8.1.7 Estimating Junction Temperature
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Setting VOUT For the LP2980-ADJ LDO
        2. 8.2.2.2 ON/OFF Input Operation
      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 Device Support
      1. 9.1.1 Device Nomenclature
    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

7.4.1 Device Functional Mode Comparison

Table 7-1 shows the conditions that lead to the different modes of operation. See the Electrical Characteristics table for parameter values.

Table 7-1 Device Functional Mode Comparison
OPERATING MODE PARAMETER
VIN VON/OFF IOUT TJ
Normal operation VIN > VOUT(nom) + VDO and VIN > VIN(min) VON/OFF > VON/OFF(HI) IOUT < IOUT(max) TJ < TSD(shutdown)
Dropout operation VIN(min) < VIN < VOUT(nom) + VDO VON/OFF > VON/OFF(HI) IOUT < IOUT(max) TJ < TSD(shutdown)
Disabled
(any true condition disables the device)		 VIN < VUVLO VON/OFF < VON/OFF(LOW) Not applicable TJ > TSD(shutdown)