ZHCSFM7C October 2016 – August 2023 TPS568215
PRODUCTION DATA
- 1
- 1 特性
- 2 应用
- 3 说明
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
-
7 Detailed Description
- 7.1 Overview
- 7.2 Functional Block Diagram
- 7.3
Feature Description
- 7.3.1 PWM Operation and D-CAP3 Control Mode
- 7.3.2 Eco-mode Control
- 7.3.3 4.7 V LDO and External Bias
- 7.3.4 MODE Selection
- 7.3.5 Soft Start and Pre-biased Soft Start
- 7.3.6 Enable and Adjustable UVLO
- 7.3.7 Power Good
- 7.3.8 Overcurrent Protection and Undervoltage Protection
- 7.3.9 Out-of-Bounds Operation
- 7.3.10 UVLO Protection
- 7.3.11 Thermal Shutdown
- 7.3.12 Output Voltage Discharge
- 7.4 Device Functional Modes
- 8 Application and Implementation
- 9 Device and Documentation Support
- 10Mechanical, Packaging, and Orderable Information
8.2.2.1.5 Input Capacitor Selection
The minimum input capacitance required is given in Equation 9.
Equation 9. 
TI recommends using a high quality X5R or X7R input decoupling capacitors of 40 µF on the input voltage pin. The voltage rating on the input capacitor must be greater than the maximum input voltage. The capacitor must also have a ripple current rating greater than the maximum input current ripple of the application. The input ripple current is calculated by Equation 10 below:
Equation 10. 