ZHCSL72B October   2016  – July 2021 TPS57114C-Q1

PRODUCTION DATA  

  1. 特性
  2. 应用
  3. 说明
  4. Revision History
  5. Pin Configuration and Functions
  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. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Fixed-Frequency PWM Control
      2. 7.3.2 Slope Compensation and Output Current
      3. 7.3.3 Bootstrap Voltage (BOOT) and Low-Dropout Operation
        1. 7.3.3.1 Error Amplifier
      4. 7.3.4 Voltage Reference
    4. 7.4 Device Functional Modes
      1. 7.4.1  Adjusting the Output Voltage
      2. 7.4.2  Enable Functionality and Adjusting Undervoltage Lockout
      3. 7.4.3  Slow-Start or Tracking Pin
      4. 7.4.4  Sequencing
      5. 7.4.5  Constant Switching Frequency and Timing Resistor (RT/CLK Pin)
      6. 7.4.6  Overcurrent Protection
      7. 7.4.7  Frequency Shift
      8. 7.4.8  Reverse Overcurrent Protection
      9. 7.4.9  Synchronize Using The RT/CLK Pin
      10. 7.4.10 Power Good (PWRGD Pin)
      11. 7.4.11 Overvoltage Transient Protection
      12. 7.4.12 Thermal Shutdown
      13. 7.4.13 Small-Signal Model for Loop Response
      14. 7.4.14 Simple Small-Signal Model for Peak-Current Mode Control
      15. 7.4.15 Small-Signal Model for Frequency Compensation
  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 Selecting the Switching Frequency
        2. 8.2.2.2 Output Inductor Selection
        3. 8.2.2.3 Output Capacitor
        4. 8.2.2.4 Input Capacitor
        5. 8.2.2.5 Slow-Start Capacitor
        6. 8.2.2.6 Bootstrap Capacitor Selection
        7. 8.2.2.7 Output-Voltage And Feedback-Resistor Selection
        8. 8.2.2.8 Compensation
        9. 8.2.2.9 Power-Dissipation Estimate
      3. 8.2.3 Application Curves
  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 第三方米6体育平台手机版_好二三四免责声明
      2. 11.1.2 Development Support
    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 静电放电警告
    7. 11.7 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

Typical Characteristics

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Figure 6-1 High-Side and Low-Side rDS(on) vs Temperature
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Figure 6-3 High-Side Current Limit vs Temperature
GUID-12492892-06C7-4C4C-A7A1-83316671BD00-low.gifFigure 6-5 Switching Frequency vs RT Resistance, Low-Frequency Range
GUID-EE88E9C5-8DCB-4054-96F1-8F1631494601-low.gif
V(VIN) = 3.3 V
Figure 6-7 Transconductance vs Temperature
GUID-D1976BA5-E263-46E5-B8DB-548C6C8C46A3-low.gif
 
Figure 6-9 EN Pin Voltage vs Temperature
GUID-0F9C148D-5807-453E-8CC5-88B3F35CC6F1-low.gif
V(VIN) = 5 VV(EN) = Threshold – 50 mV
Figure 6-11 EN Pin Current vs Temperature
GUID-FE436280-57A0-4DE3-88E2-898747DF4A12-low.gif
 
Figure 6-13 Input Voltage vs Temperature
GUID-63562E46-4AF0-444A-95F3-6C653DCB16B8-low.gif
TJ = 25°C
Figure 6-15 Shutdown Supply Current vs Input Voltage
GUID-14539513-EDE5-4AC9-B672-86AB77895C04-low.gif
TJ = 25°C
Figure 6-17 VIN Supply Current vs Input Voltage
GUID-CD6A723D-8A46-448C-B077-6AAFD36A50FF-low.gif
V(VIN) = 5 V
Figure 6-19 PWRGD On-Resistance vs Temperature
GUID-94CC6D07-532E-454A-A018-E378A460420B-low.gif
RT = 400 kΩ V(VIN) = 5 V
Figure 6-2 Frequency vs Temperature
GUID-23E50B5E-8048-423D-8CF9-15F3BA6B3473-low.gif
V(VIN) = 3.3 V
Figure 6-4 Voltage Reference vs Temperature
GUID-B9EE5862-A16D-4490-A448-C38C001532BC-low.gifFigure 6-6 Switching Frequency vs V(VSENSE)
GUID-B15B42C0-CD63-4F86-879D-D2E0C928DDB2-low.gif
V(VIN) = 3.3 V
Figure 6-8 Transconductance (Slow Start) vs Junction Temperature
GUID-13E943FA-8692-47E1-8F43-2CBE9AEFF9AB-low.gif
V(VIN) = 5 VV(EN) = Threshold + 50 mV
Figure 6-10 EN Pin Current vs Temperature
GUID-50518E49-9DFF-41D9-9F1E-029ED561E1BA-low.gif
V(VIN) = 5 V
Figure 6-12 Charge Current vs Temperature
GUID-675A1E2D-EE08-4329-B66F-AFD0329CCC75-low.gif
V(VIN) = 3.3 V
Figure 6-14 Shutdown Supply Current vs Temperature
GUID-9ECB1EC2-2EAF-46AF-95DE-04B01AA5B4BF-low.gif
V(VIN) = 3.3 V
Figure 6-16 VIN Supply Current vs Junction Temperature
GUID-ED98D8A5-1224-492E-B9B9-ECE498640DE9-low.gif
V(VIN) = 5 V
Figure 6-18 PWRGD Threshold vs Temperature
GUID-47422520-184B-4028-A1BB-BC2E941BF190-low.gif
V(VIN) = 5 V V(SS/TR) = 0.4 V
Figure 6-20 SS/TR-to-VSENSE Offset vs Temperature