ZHCSR54A February   2023  – November 2023 TPS62A01-Q1 , TPS62A01A-Q1

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Device Comparison Table
  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 Power Save Mode
      2. 7.3.2 100% Duty Cycle Low Dropout Operation
      3. 7.3.3 Soft Start
      4. 7.3.4 Switch Current Limit and Short-Circuit Protection (HICCUP)
      5. 7.3.5 Undervoltage Lockout
      6. 7.3.6 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Enable and Disable
      2. 7.4.2 Power Good
  9. 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 Setting the Output Voltage
        2. 8.2.2.2 Output Filter Design
        3. 8.2.2.3 Input and Output Capacitor Selection
      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 第三方产品免责声明
    2. 9.2 接收文档更新通知
    3. 9.3 支持资源
    4. 9.4 Trademarks
    5. 9.5 静电放电警告
    6. 9.6 术语表
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

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8.2.1 Design Requirements

For this design example, use the parameters listed in Table 8-1 as the input parameters

Table 8-1 Design Parameters
Design Parameter Example Value
Input voltage 2.5 V to 5.5 V
Output voltage 1.8 V
Maximum output current 1.0 A

Table 8-2 lists the components used for the example.

Table 8-2 List of Components
Reference Description Manufacturer(1)
C1 4.7 µF, Ceramic Capacitor, 10 V, X7R, size 0805, GRM21BR71A475KA73L Murata
C2 22 µF, Ceramic Capacitor, 10 V, X7R, size 0805, GRM21BZ71A226KE15L Murata
L1 1 µH, Power Inductor, XGL3520-102MEC Coilcraft
R1, R2 Chip resistor, 1%, size 0603 Std.
C3 Optional, 27 pF or 33 pF if needed(2) Std.
(2) TI recommends 33 pF for ≤1.8-V output voltage and 27 pF for 3.3-V output voltage.