ZHCSSO4D September   2010  – December 2023 TPS74801-Q1

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics: IOUT = 50 mA
    7. 5.7 Typical Characteristics: IOUT = 1 A
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Programmable Soft-Start
      2. 6.3.2 Sequencing Requirements
      3. 6.3.3 Output Noise
      4. 6.3.4 Enable and Shutdown
      5. 6.3.5 Power Good
      6. 6.3.6 Internal Current Limit
      7. 6.3.7 Thermal Protection
    4. 6.4 Device Functional Modes
      1. 6.4.1 Normal Operation
      2. 6.4.2 Dropout Operation
      3. 6.4.3 Disabled
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Input, Output, and Bias Capacitor Requirements
        2. 7.2.2.2 Transient Response
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
        1. 7.4.1.1 Layout Recommendations and Power Dissipation
        2. 7.4.1.2 Estimating Junction Temperature
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
      2. 8.1.2 Device Nomenclature
    2. 8.2 接收文档更新通知
    3. 8.3 支持资源
    4. 8.4 Trademarks
    5. 8.5 静电放电警告
    6. 8.6 术语表
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

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机械数据 (封装 | 引脚)
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5.7 Typical Characteristics: IOUT = 1 A

at TJ = 25°C, VIN = VOUT(nom) + 0.3 V, VBIAS = 5 V, IOUT = 1 A, VEN = VIN = 1.8 V, VOUT = 1.5 V, CIN = 1 μF, CBIAS = 4.7 μF, and COUT = 10 μF (unless otherwise noted)

GUID-53F63649-39ED-4AC6-B093-9E52648A109B-low.gif
Legacy chip
Figure 5-31 VBIAS Line Transient
GUID-ABA55948-26AA-474D-BC60-21F19982DA6D-low.gif
 Legacy chip
Figure 5-33 VIN Line Transient
GUID-F456D6EE-1AD7-4DA4-95DF-B00EEC54B9BB-low.gif
Legacy chip
Figure 5-35 Output Load Transient Response
GUID-A7E64292-FD50-4203-85D8-716953108BFD-low.gif
Legacy chip
Figure 5-37 Turn-On Response
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Legacy chip
Figure 5-39 Power-Up, Power-Down
GUID-20230206-SS0I-73JX-JRGW-R9HBHTZSS0FD-low.png
New chip
Figure 5-32 VBIAS Line Transient
GUID-20230206-SS0I-F8XS-BDG8-4ZF0BFLBPBLG-low.png
New chip
Figure 5-34 VIN Line Transient
GUID-20230206-SS0I-8X7N-BNSG-D3CDQC2WJHLF-low.png
New chip
Figure 5-36 Output Load Transient Response
GUID-20230206-SS0I-TJNM-VHDD-PTF6DX73SDW0-low.png
New chip
Figure 5-38 Turn-On Response
GUID-20230206-SS0I-0VJ8-JWQN-ZWSBNFBP4KBK-low.png
New chip
Figure 5-40 Power-Up, Power-Down