ZHCSNA2 October   2021 TPS563212

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and 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 Advanced Emulated Current Mode Control
      2. 7.3.2 Mode Selection and PG/SS Pin Function Configuration
      3. 7.3.3 Power Good (PG)
      4. 7.3.4 Soft Start and Pre-Biased Soft Start
      5. 7.3.5 Output Discharge Through PG/SS Pin
      6. 7.3.6 Precise Enable and Adjusting Undervoltage Lockout
      7. 7.3.7 Overcurrent Limit and Undervoltage Protection
      8. 7.3.8 Overvoltage Protection
      9. 7.3.9 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode
      2. 7.4.2 Active Mode
      3. 7.4.3 FCCM Operation
      4. 7.4.4 CCM Operation
      5. 7.4.5 DCM Operation and Eco-mode Operation
      6. 7.4.6 On-Time Extension for Large Duty Cycle Operation
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Custom Design With WEBENCH® Tools
        2. 8.2.2.2 Output Voltage Resistors Selection
        3. 8.2.2.3 Output Inductor Selection
        4. 8.2.2.4 Output Capacitor Selection
        5. 8.2.2.5 Input Capacitor Selection
        6. 8.2.2.6 Bootstrap Capacitor Selection
        7. 8.2.2.7 Undervoltage Lockout Set Point
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 第三方产品免责声明
      2. 11.1.2 Development Support
        1. 11.1.2.1 Custom Design With WEBENCH® Tools
    2. 11.2 接收文档更新通知
    3. 11.3 支持资源
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 术语表
  12. 12Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.6 Typical Characteristics

VIN = 12 V, TA = 25°C, unless otherwise noted

GUID-7DC94A4B-6F8D-4C4E-B558-651130912D9E-low.gifFigure 6-1 Quiescent Current (Eco-mode) vs Junction Temperature
GUID-0365A3D1-9CBD-4CCF-ABC3-F34C891372A4-low.gifFigure 6-3 Shutdown Current vs Junction Temperature
GUID-5BAC7A35-8DF8-4ACD-8775-9432AE94A0A9-low.gifFigure 6-5 High-Side MOSFET On-Resistance vs Junction Temperature
GUID-D40A3B00-0F3C-42E9-96F9-67363581CF28-low.gifFigure 6-7 VIN UVLO Threshold vs Junction Temperature
GUID-131AED0D-7781-4016-95CD-28B560C97056-low.gifFigure 6-9 High-Side Current Limit Threshold vs Junction Temperature
Figure 6-11 Switching Frequency vs Junction Temperature
GUID-20211013-SS0I-9XSR-XVTJ-BNGRRD6ZVKGD-low.pngFigure 6-13 VOUT = 1.05-V Efficiency, L = 0.68 µH
GUID-20211013-SS0I-VKV6-BRHB-6WCW253WCVFW-low.pngFigure 6-15 VOUT = 5-V Efficiency, L = 3.3 µH
GUID-7EE48102-625F-4442-B6BB-33BFC5090E2F-low.gifFigure 6-2 Quiescent Current (FCCM) vs Junction Temperature
GUID-4F07B4AC-AF7C-43BB-852D-B3EA544D7FF4-low.gifFigure 6-4 Reference Voltage vs Junction Temperature
GUID-574B5C39-0622-47AC-AB20-74039D87B06E-low.gifFigure 6-6 Low-Side MOSFET On-Resistance vs Junction Temperature
Figure 6-8 EN Threshold vs Junction Temperature
GUID-506ACDBB-5E7C-4389-BF84-8F7584FB7D95-low.gifFigure 6-10 Low-Side Current Limit Threshold vs Junction Temperature
GUID-20211013-SS0I-8LFT-NVGQ-H3V989N0WQB3-low.pngFigure 6-12 Switching Frequency vs Output Current, VOUT = 3.3 V, L = 2.2 µH
GUID-20211013-SS0I-DGSP-NXP0-HG0XSVZPBJPB-low.pngFigure 6-14 VOUT = 3.3-V Efficiency, L = 2.2 µH
GUID-20211013-SS0I-C8XZ-4L5T-K0ZFK2PCS9NM-low.pngFigure 6-16 VOUT = 7-V Efficiency, L = 3.3 µH