ZHCSIR1C
June 2018 – May 2021
LM2775-Q1
PRODUCTION DATA
1
特性
2
应用
3
说明
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Switching Characteristics
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Pre-Regulation
7.3.2
Input Current Limit
7.3.3
PFM Mode
7.3.4
Output Discharge
7.3.5
Thermal Shutdown
7.3.6
Undervoltage Lockout
7.4
Device Functional Modes
7.4.1
Shutdown
7.4.2
Boost Mode
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
Output Current Capability
8.2.2.2
Efficiency
8.2.2.3
Power Dissipation
8.2.2.4
Recommended Capacitor Types
8.2.2.5
Output Capacitor and Output Voltage Ripple
8.2.2.6
Input Capacitor and Input Voltage Ripple
8.2.2.7
Flying Capacitor
8.2.3
Application Curve
8.2.4
USB OTG / Mobile HDMI Power Supply
8.2.4.1
Design Requirements
8.2.4.2
Detailed Design Procedure
8.2.4.3
Application Curve
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
接收文档更新通知
11.2
支持资源
11.3
Trademarks
11.4
Electrostatic Discharge Caution
11.5
Glossary
12
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
DSG|8
MPDS308C
散热焊盘机械数据 (封装 | 引脚)
DSG|8
QFND141I
订购信息
zhcsir1c_oa
zhcsir1c_pm
1
特性
符合汽车应用要求
具有符合 AEC-Q100 标准的下列特性
器件温度等级 1:–40°C 至 +125°C 环境工作温度范围
2.7V 至 5.5V 的输入电压范围
固定 5V 输出
200mA 输出电流
无电感器解决方案:仅需 3 个小型陶瓷电容器
关断期间从 V
IN
断开负载
电流限制和过热保护
2MHz 开关频率
轻负载电流条件下支持 PFM 操作(PFM 引脚连接高电平)