ZHCSL72B October 2016 – July 2021 TPS57114C-Q1
PRODUCTION DATA
- 1 特性
- 2 應(yīng)用
- 3 說(shuō)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
- 7.4
Device Functional Modes
- 7.4.1 Adjusting the Output Voltage
- 7.4.2 Enable Functionality and Adjusting Undervoltage Lockout
- 7.4.3 Slow-Start or Tracking Pin
- 7.4.4 Sequencing
- 7.4.5 Constant Switching Frequency and Timing Resistor (RT/CLK Pin)
- 7.4.6 Overcurrent Protection
- 7.4.7 Frequency Shift
- 7.4.8 Reverse Overcurrent Protection
- 7.4.9 Synchronize Using The RT/CLK Pin
- 7.4.10 Power Good (PWRGD Pin)
- 7.4.11 Overvoltage Transient Protection
- 7.4.12 Thermal Shutdown
- 7.4.13 Small-Signal Model for Loop Response
- 7.4.14 Simple Small-Signal Model for Peak-Current Mode Control
- 7.4.15 Small-Signal Model for Frequency Compensation
-
8 Application and Implementation
- 8.1 Application Information
- 8.2
Typical Application
- 8.2.1 Design Requirements
- 8.2.2
Detailed Design Procedure
- 8.2.2.1 Selecting the Switching Frequency
- 8.2.2.2 Output Inductor Selection
- 8.2.2.3 Output Capacitor
- 8.2.2.4 Input Capacitor
- 8.2.2.5 Slow-Start Capacitor
- 8.2.2.6 Bootstrap Capacitor Selection
- 8.2.2.7 Output-Voltage And Feedback-Resistor Selection
- 8.2.2.8 Compensation
- 8.2.2.9 Power-Dissipation Estimate
- 8.2.3 Application Curves
- 9 Power Supply Recommendations
- 10Layout
- 11Device and Documentation Support
- 12Mechanical, Packaging, and Orderable Information
封裝選項(xiàng)
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- RTE|16
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
- RTE|16
訂購(gòu)信息
8.2.3 Application Curves
| V(VIN) = 5 V | f(SW) = 1 MHz | TA = 25°C |
Figure 8-6 Power-Up VO, V(VIN)
Figure 8-8 Transient Response, 1.5-A Step
Figure 8-10 Power-Up VO, V(VIN)
Figure 8-14 Load
Regulation vs Load Current
| VO = 1.8 V | f(SW) = 2 MHz |
| V(VIN) = 5 V | f(SW) = 1 MHz | TA = 25°C |
Figure 8-7 Power-Down VO, V(VIN)
Figure 8-9 Power-Up VO, V(VIN)
Figure 8-11 Output Ripple, 4 A
| VO = 1.2 V | f(SW) = 2 MHz | V(VIN) = 5 V |
| IO = 4 A |
| VO = 1.8 V | f(SW) = 2 MHz | IO = 4 A |