ZHCSN49M january   2007  – april 2023

PRODUCTION DATA  

  1. 特性
  2. 应用
  3. 描述
  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: Other Orderable Devices (non-M3 Suffix)
    6. 6.6  Electrical Characteristics: Orderable Device with M3 suffix
    7. 6.7  典型特性:IOUT = 50 mA
    8. 6.8  Typical Characteristics: IOUT = 1 A
    9. 6.9  Typical Characteristics: IOUT = 50 mA (M3 Suffix)
    10. 6.10 Typical Characteristics: IOUT = 1 A (M3 Suffix)
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Enable/Shutdown
      2. 7.3.2 Power Good
      3. 7.3.3 Internal Current Limit
      4. 7.3.4 Thermal Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation
      2. 7.4.2 Dropout Operation
      3. 7.4.3 Disabled
    5. 7.5 Programming
      1. 7.5.1 Programmable Soft-Start
      2. 7.5.2 Sequencing Requirements
  8. Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Adjusting the Output Voltage
      2. 8.1.2 Input, Output, and Bias Capacitor Requirements
      3. 8.1.3 Transient Response
      4. 8.1.4 Dropout Voltage
      5. 8.1.5 Output Noise
    2. 8.2 Typical Applications
      1. 8.2.1 FPGA I/O Supply at 1.5 V With a Bias Rail
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 FPGA I/O Supply at 1.5 V Without a Bias Rail
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        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 Estimating Junction Temperature
      2. 8.4.2 Layout Example
  9. Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Development Support
        1. 9.1.1.1 Evaluation Modules
        2. 9.1.1.2 Spice Models
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 接收文档更新通知
    4. 9.4 支持资源
    5. 9.5 Trademarks
    6. 9.6 静电放电警告
    7. 9.7 术语表
  10. 10Mechanical, 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

描述

TPS748 低压降 (LDO) 线性稳压器可面向多种应用提供易于使用的稳健型电源管理解决方案。用户可编程软启动通过减少启动时的电容涌入电流,最大限度地减少了输入电源上的应力。软启动具有单调性,旨在为各类处理器和 ASIC 供电。借助使能输入和电源正常输出,可通过外部稳压器轻松实现上电排序。凭借全方位的灵活性,该器件可为 FPGA、DSP 等具有特殊启动要求的应用配置可满足其时序要求的解决方案。

该器件还具有高精度的参考电压电路和误差放大器,可在整个负载、线路、温度和过程范围内提供 2% 精度。该器件在使用大于或等于 2.2μF 的任何类型的电容器时都能保持稳定运行,并具有 TJ = –40°C 至 +125°C 的额定结温范围。TPS748 采用小型 3mm × 3mm VSON-10 封装,可实现高度紧凑的解决方案总尺寸。该器件还可采用 5mm × 5mm VQFN-20 封装,从而与 TPS744 兼容。

封装信息
器件型号 封装(1) 封装尺寸(标称值)
TPS748 DRC(VSON,10) 3.00mm × 3.00mm
RGW(VQFN,20) 5.00mm × 5.00mm
要了解所有可用封装,请见数据表末尾的可订购产品附录。

 

 

GUID-D74BEDDF-A3C5-4EB0-BCE3-5C7FCE92E6C8-low.gif典型应用电路(可调节)
GUID-A7E64292-FD50-4203-85D8-716953108BFD-low.gif导通响应