ZHCSFB9B
June 2016 – March 2019
TPS63070
PRODUCTION DATA.
1
特性
2
应用
3
说明
Device Images
简化原理图
效率与输出电流间的关系;Vo = 5V
4
修订历史记录
5
Device Comparison Table
6
Pin Configuration and Functions
Pin Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram TPS63070
8.3
Functional Block Diagram TPS630701
8.4
Feature Description
8.4.1
Control Loop Description
8.4.2
Precise Enable
8.4.3
Power Good
8.4.4
Soft Start
8.4.5
PS/SYNC
8.4.6
Short Circuit Protection
8.4.7
VSEL and FB2 pins
8.4.8
Overvoltage Protection
8.4.9
Undervoltage Lockout
8.4.10
Overtemperature Protection
8.5
Device Functional Modes
8.5.1
Power Save Mode
8.5.2
Current Limit
8.5.3
Output Discharge Function (TPS630702 only)
9
Application and Implementation
9.1
Application Information
9.2
Typical Application for adjustable version
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Programming The Output Voltage
9.2.2.2
Inductor Selection
9.2.2.3
Capacitor Selection
9.2.2.3.1
Input Capacitor
9.2.2.3.2
Output Capacitor
9.2.3
Application Curves
9.3
Typical Application for Fixed Voltage Version
9.3.1
Design Requirements
9.3.2
Detailed Design Procedure
9.3.3
Application Curves
10
Power Supply Recommendations
10.1
Thermal Information
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
器件和文档支持
12.1
器件支持
12.1.1
第三方产品免责声明
12.2
相关链接
12.3
接收文档更新通知
12.4
社区资源
12.5
商标
12.6
静电放电警告
12.7
术语表
13
机械、封装和可订购信息
1
特性
输入电压范围:2.0V 至 16V
输出电压范围:2.5V 至 9V
效率高达 95%
脉宽调制 (PWM) 模式下的直流精度为 +/-1%
脉频调制 (PFM) 模式下的直流精度为 +3%/-1%
降压模式下的输出电流为 2A
升压模式下的输出电流为 2A
(VIN = 4V;Vout = 5V)
精密使能输入可实现
用户定义的欠压闭锁
准确排序
在降压和升压模式之间实现自动转换
器件静态电流典型值:50μA
具有固定和可调输出电压选项
具有输出放电选项
省电模式可提高低输出功率时的效率
2.4MHz 强制固定运行频率和同步选项
电源正常输出
可通过 VSEL 轻松更改输出电压
关断期间负载断开
过热保护
输入/输出过压保护
采用四方扁平无引线 (QFN) 封装