ZHCSCO8E June 2014 – May 2019 TPS65283 , TPS65283-1
PRODUCTION DATA.
- 1 特性
- 2 應用
- 3 說明
- 4 典型電路原理圖
- 5 修訂歷史記錄
- 6 說明 （續(xù)）
- 7 Pin Configuration and Functions
- 8 Specifications
-
9 Detailed Description
- 9.1 Overview
- 9.2 Functional Block Diagram
- 9.3
Feature Description
- 9.3.1 Power Switch Detailed Description
- 9.3.2
Buck DC-DC Converter Detailed Description
- 9.3.2.1 Output Voltage
- 9.3.2.2 Adjustable Switching Frequency
- 9.3.2.3 Synchronization
- 9.3.2.4 Error Amplifier
- 9.3.2.5 Slope Compensation
- 9.3.2.6 Enable and Adjusting UVLO
- 9.3.2.7 Internal V7V Regulator
- 9.3.2.8 Short Circuit Protection
- 9.3.2.9 Bootstrap Voltage (BST) and Low Dropout Operation
- 9.3.2.10 Output Overvoltage Protection (OVP)
- 9.3.2.11 Power Good
- 9.3.2.12 Power-Up Sequencing
- 9.3.2.13 Thermal Performance
- 9.4 Device Functional Modes
- 10Application and Implementation
- 11Power Supply Recommendations
- 12Layout
- 13器件和文檔支持
- 14機械、封裝和可訂購信息
封裝選項
機械數(shù)據(jù) (封裝 | 引腳)
- RGE|24
散熱焊盤機械數(shù)據(jù) (封裝 | 引腳)
- RGE|24
訂購信息
9.3.2.1 Output Voltage
The TPS65283, TPS65283-1 regulate output voltage set by a feedback resistor divider to 0.6-V reference voltage. This pin should be directly connected to middle of resistor divider. TI recommends to use 1% tolerance or better divider resistors. Take care to route the FB line away from noise sources, such as the inductor or the LX switching node line. Start with 39 kΩ for the R1 resistor and use Equation 2 to calculate R2 and ensure the R2 ≤ 10 kΩ.
Equation 2. 
Figure 24. Buck Internal Feedback Resistor Divider