JAJSSK4 December   2023 TPSM64406

PRODUCTION DATA  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  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 System Characteristics
    7. 6.7 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  Input Voltage Range (VIN1, VIN2)
      2. 7.3.2  Enable EN Pin and Use as VIN UVLO
      3. 7.3.3  CONFIG Device Configuration Pin
      4. 7.3.4  Adjustable Switching Frequency
      5. 7.3.5  Spread Spectrum
      6. 7.3.6  Adjustable Output Voltage (FB)
      7. 7.3.7  Input Capacitors
      8. 7.3.8  Output Capacitors
      9. 7.3.9  SYNC Allows Clock Synchronization and Mode Selection
      10. 7.3.10 Power-Good Output Voltage Monitoring
      11. 7.3.11 Bias Supply Regulator (VCC, VOSNS)
      12. 7.3.12 Overcurrent Protection (OCP)
      13. 7.3.13 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode
      2. 7.4.2 Standby Mode
      3. 7.4.3 Active Mode
  9. 8 Applications and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Design 1 – High-efficiency Dual Output 5 V at 3 A, 3.3 V at 3 A, Synchronous Buck Regulator
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Output Voltage Setpoint
          2. 8.2.1.2.2 Switching Frequency Selection
          3. 8.2.1.2.3 Input Capacitor Selection
          4. 8.2.1.2.4 Output Capacitor Selection
          5. 8.2.1.2.5 Other Considerations
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Design 2 – High-efficiency 6 A Synchronous Buck Regulator for Industrial Applications
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
          1. 8.2.2.2.1 Output Voltage Setpoint
          2. 8.2.2.2.2 Switching Frequency Selection
          3. 8.2.2.2.3 Input Capacitor Selection
          4. 8.2.2.2.4 Output Capacitor Selection
          5. 8.2.2.2.5 Other Connections
        3. 8.2.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 Thermal Design and Layout
      2. 8.4.2 Layout Example
  10. 9 Custom Design With WEBENCH® Tools
  11. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 サード・パーティ製品に関する免責事項
      2. 10.1.2 Development Support
        1. 10.1.2.1 Custom Design With WEBENCH® Tools
    2. 10.2 Documentation Support
      1. 10.2.1 Related Documentation
    3. 10.3 ドキュメントの更新通知を受け取る方法
    4. 10.4 サポート・リソース
    5. 10.5 Trademarks
    6. 10.6 静電気放電に関する注意事項
    7. 10.7 用語集
  12. 11Mechanical, Packaging, and Orderable Information
    1. 11.1 Mechanical Data

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

8.2.2.1 Design Requirements

The following table shows the intended input, output, and performance parameters for this application example. Note that if the input voltage decreases below approximately 7 V, the regulator operates in dropout with the output voltage below the 5-V setpoint.

Table 8-3 Design Parameters
DESIGN PARAMETER VALUE
Input voltage range 7 V to 36 V
Input voltage UVLO turn on/off 6 V, 4.3 V
Output voltage 5 V
Maximum output current 6 A
Switching frequency 2.1 MHz
Output voltage regulation ±1%
Module shutdown current < 1 µA

Table 8-4 provides the selected buck module power-stage components with availability from multiple vendors. This design uses an all-ceramic output capacitor implementation.

Table 8-4 List of Materials for Application Circuit 2
REFERENCE DESIGNATORQTYSPECIFICATIONMANUFACTURER(1)PART NUMBER
CIN1, CIN242.2 µF, 50 V, X7R, 0805, ceramicTDKC2012X7R1H225K125AC
CINBULK 1 100 µF, 50 V electrolytic Panasonic EEE-FK1H101P
COUT1, COUT2 510 µF, 25 V, X7R, 1210, ceramicTDKC3225X7R1E106K250AC
1 22 µF, 25 V, X7R, 1210, ceramic TDK CNA6P1X7R1E226M250AE
U11TPSM64406 36-V, 6-A synchronous buck moduleTexas InstrumentsTPSM64406RDLR

More generally, the TPSM64406 module is designed to operate with a wide range of external components and system parameters. However, the integrated loop compensation is optimized for a certain range of output capacitance.