JAJSJP4A August   2017  – September 2020 LV14360

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 Revision History
  5. 5 Device Comparison Table
  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 Switching Characteristics
    7. 7.7 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  Fixed Frequency Peak Current Mode Control
      2. 8.3.2  Slope Compensation
      3. 8.3.3  Sleep Mode
      4. 8.3.4  Low Dropout Operation and Bootstrap Voltage (BOOT)
      5. 8.3.5  Adjustable Output Voltage
      6. 8.3.6  Enable and Adjustable Undervoltage Lockout
      7. 8.3.7  External Soft Start
      8. 8.3.8  Switching Frequency and Synchronization (RT/SYNC)
      9. 8.3.9  Power Good (PGOOD)
      10. 8.3.10 Overcurrent and Short-Circuit Protection
      11. 8.3.11 Overvoltage Protection
      12. 8.3.12 Thermal Shutdown
    4. 8.4 Device Functional Modes
      1. 8.4.1 Shutdown Mode
      2. 8.4.2 Active Mode
      3. 8.4.3 CCM Mode
      4. 8.4.4 Light Load Operation
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Output Voltage Set-Point
        2. 9.2.2.2 Switching Frequency
        3. 9.2.2.3 Output Inductor Selection
        4. 9.2.2.4 Output Capacitor Selection
        5. 9.2.2.5 Schottky Diode Selection
        6. 9.2.2.6 Input Capacitor Selection
        7. 9.2.2.7 Bootstrap Capacitor Selection
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 ドキュメントの更新通知を受け取る方法
    2. 12.2 サポート・リソース
    3. 12.3 Trademarks
    4. 12.4 用語集
    5. 12.5 静電気放電に関する注意事項
  13. 13Mechanical, 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

7.5 Electrical Characteristics

Limits apply over the recommended operating junction temperature (TJ) range of –40°C to +125°C, unless otherwise stated. Minimum and maximum limits are specified through test, design or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless otherwise specified, the following conditions apply: VIN = 4.3 V to 60 V
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
POWER SUPPLY (VIN PIN)
VINOperation input voltage4.360V
UVLOUnder voltage lockout thresholdsRising threshold3.844.2V
Hysteresis285mV
ISHDNShutdown supply currentVEN = 0 V, TA = 25°C, 4.3 V ≤ VIN ≤ 60 V13μA
IQOperating quiescent current (non- switching)VFB = 1 V, TA = 25°C300μA
ENABLE (EN PIN)
VEN_THEN Threshold Voltage1.051.201.38V
IEN_PINEN PIN currentEnable threshold 50 mV–4.6μA
Enable threshold –50 mV–1
IEN_HYSEN hysteresis current–3.6μA
SOFT START
ISSSS pin currentFor external soft-start version only, TA = 25°C–3μA
tSSInternal soft-start timeFor power-good version only, 10% to 90% of FB voltage4ms
POWER GOOD (PGOOD PIN)
VPG_UVPower-good flag under voltage tripping thresholdPOWER GOOD (% of FB voltage)94%
POWER BAD (% of FB voltage)92%
VPG_OVPower-good flag over voltage tripping thresholdPOWER BAD (% of FB voltage)109%
POWER GOOD (% of FB voltage)107%
VPG_HYSPower-good flag recovery hysteresis% of FB voltage2%
IPGPGOOD leakage current at high level outputVPULLUP = 5 V10200nA
VPG_LOWPGOOD low level output voltageIPULLUP = 1 mA0.1V
VIN_PG_MINMinimum VIN for valid PGOOD outputVPULLUP < 5 V at IPULLUP = 100 μA1.61.95V
VOLTAGE REFERENCE (FB PIN)
VFBFeedback voltageTJ = 25°C0.7460.750.754V
TJ = –40°C to 125°C0.7350.750.765V
HIGH-SIDE MOSFET
RDS_ONOn-resistanceVIN = 12 V, BOOT to SW = 5.8 V155320mΩ
HIGH-SIDE MOSFET CURRENT LIMIT
ILIMTCurrent limitVIN = 12 V, TA = 25°C, Open Loop3.84.755.7A
THERMAL PERFORMANCE
TSHDNThermal shutdown threshold170°C
THYSHysteresis12