ZHCSDN1E August   2012  – September 2021 LMZ20501

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 System Characteristics
    7. 6.7 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 Nano Scale Package
      2. 7.3.2 Internal Synchronous Rectifier
      3. 7.3.3 Current Limit Protection
      4. 7.3.4 Start-Up
      5. 7.3.5 Dropout Behavior
      6. 7.3.6 Power Good Flag Function
      7. 7.3.7 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 PWM Operation
      2. 7.4.2 PFM Operation
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Detailed Design Procedure
        1. 8.2.1.1 Custom Design With WEBENCH® Tools
        2. 8.2.1.2 Setting The Output Voltage
        3. 8.2.1.3 Output and Feedforward Capacitors
        4. 8.2.1.4 Input Capacitors
        5. 8.2.1.5 Maximum Ambient Temperature
        6. 8.2.1.6 Options
      2. 8.2.2 Application Curves
    3. 8.3 Do's and Don'ts
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
      1. 10.2.1 Soldering Information
  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 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 接收文档更新通知
    4. 11.4 支持资源
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 术语表
  12. 12Mechanical, Packaging, and Orderable Information
    1. 12.1 Tape and Reel Information

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • SIL|8
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.2.2 Application Curves

The following specifications apply to the circuit found in Figure 8-1 or Figure 8-2 with the appropriate modifications from Table 8-1. These parameters are not tested and represent typical performance only. Unless otherwise stated the following conditions apply: TA = 25°C.
The following specifications apply to the circuit found in Figure 8-1 or Figure 8-2 with the appropriate modifications from Table 8-1. These parameters are not tested and represent typical performance only. Unless otherwise stated the following conditions apply: TA = 25°C.GUID-4C0758B9-A009-42C7-90B4-F8A19990C17B-low.png
VOUT = 1.8 V
Figure 8-5 Efficiency. The following specifications apply to the circuit found in Figure 8-1 or Figure 8-2 with the appropriate modifications from Table 8-1. These parameters are not tested and represent typical performance only. Unless otherwise stated the following conditions apply: TA = 25°C.
GUID-61CBE99A-CAE4-4E46-9954-42D39F5DEA08-low.png
VOUT = 1.8 V
Figure 8-7 Regulation, AUTO Mode
GUID-6E500DAB-9E3B-4A8D-BD4A-D6630268CF88-low.png
VOUT = 1.8 V
Figure 8-9 AUTO Mode Thresholds
GUID-F0B64189-7434-4657-BDA2-212ACF465C13-low.png
VOUT = 1.2 V
Figure 8-11 Efficiency
GUID-7522D5DC-1E2B-449F-886F-A4A69FF35EB0-low.png
VOUT = 1.2 V
Figure 8-13 Regulation, AUTO Mode
GUID-971B80DF-0C65-4365-8BC7-AC86A2D9B595-low.png
VOUT = 1.2 V
Figure 8-15 AUTO Mode Thresholds
GUID-DF42CF7E-F5B7-431C-A567-28127F9B7F5A-low.png
VOUT = 3.3 V
Figure 8-17 Efficiency
GUID-ADB4C1E9-4E1E-4EF8-85FF-32B87AF72D34-low.png
VOUT = 3.3 V
Figure 8-19 Regulation, AUTO Mode
GUID-3EE98226-F05B-41E1-9454-D01B6C4AC25F-low.png
VOUT = 3.3 V
Figure 8-21 AUTO Mode Thresholds
GUID-EC4A6B0E-DAC2-4248-85FE-57BCAEB8FBB1-low.gif
VOUT = 1.8 VVIN = 4.2 V
Figure 8-6 Load Transient In PWM
GUID-892458B2-68E1-4A21-80D1-4C4E1D788807-low.gif
VOUT = 1.8 VVIN = 4.2 V
Figure 8-8 Load Transient In AUTO Mode
GUID-1FF4D619-61AF-4D6F-9ACA-64757B3362D7-low.gif
VOUT = 1.8 VVIN = 5 VIOUT = 1 A
Figure 8-10 Start-Up
GUID-517C62B5-9090-4218-B598-3659F62ED0C2-low.gif
VOUT = 1.2 VVIN = 4.2 V
Figure 8-12 Load Transients In PWM
GUID-EF630A7A-C833-4619-A5EC-DA5C78F43E27-low.gif
VOUT = 1.2 VVIN = 4.2 V
Figure 8-14 Load Transients In AUTO Mode
GUID-F3720EDB-9008-4F23-A2F9-ADA5EEFCB5CC-low.gif
VOUT = 1.2 VVIN = 5 VIOUT = 1 A
Figure 8-16 Start-Up
GUID-6587264D-34CC-414F-95DA-9A901A2C9496-low.gif
VOUT = 3.3 VVIN = 5 V
Figure 8-18 Load Transients In PWM Mode
GUID-0BB2CAB4-F4E1-4C36-961C-06F65D995081-low.gif
VOUT = 3.3 VVIN = 5 V
Figure 8-20 Load Transients In AUTO Mode
GUID-4D7C3D03-4CD4-4421-9434-95E3BB403685-low.gif
VOUT = 3.3 VVIN = 5 VIOUT = 1 A
Figure 8-22 Start-Up