ZHCSI98E November   2010  – March 2020 TPS7A6201-Q1

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      典型稳压器稳定性
      2.      应用原理图
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 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. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Power Up
      2. 7.3.2 Adjustable Output Voltage
      3. 7.3.3 Enable Input
      4. 7.3.4 Charge Pump Operation
      5. 7.3.5 Undervoltage Shutdown
      6. 7.3.6 Low Voltage Tracking
      7. 7.3.7 Integrated Fault Protection
      8. 7.3.8 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Low Power Mode
  8. 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 Input Capacitor
        2. 8.2.2.2 Output Capacitor
        3. 8.2.2.3 Feedback Resistor
      3. 8.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Power Dissipation and Thermal Considerations
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 接收文档更新通知
    2. 11.2 社区资源
    3. 11.3 商标
    4. 11.4 静电放电警告
    5. 11.5 Glossary
  12. 12机械、封装和可订购信息

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • KTT|5
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.2 Typical Application

Figure 20 shows the typical application circuit for the TPS7A6201-Q1 device. Depending upon an end application, different values of external components may be used. To program the output voltage, feedback resistors (R1 and R2) must be carefully selected. Using small resistors results in higher current consumption, whereas, using very large resistors impacts the sensitivity of the regulator. Therefore, TI recommends selecting feedback resistors such that the sum of R1 and R2 is between 20 kΩ and 200 kΩ. Also, the overall tolerance of the regulated output voltage depends on the tolerance of the internal reference voltage and external feedback resistors.

A larger output capacitor may be required during fast load steps to prevent output from temporarily dropping down. TI recommends a low-ESR ceramic capacitor with a dielectric of type X5R or X7R. Additionally, a bypass capacitor can be connected at the output to decouple high-frequency noise as per the end application.

Example: If the desired regulated output voltage is 5 V, upon selecting R2, R1 can be calculated using Equation 1 (and vice versa). Knowing VREF = 1.23 V (typical), VOUT = 5 V, and selecting R2 = 20 kΩ, R1 is calculated to be 61.3 kΩ.

TPS7A6201-Q1 ai_typ_app_cx_lvsaa0.gifFigure 20. Typical Application Schematic for TPS7A6201-Q1