ZHCSO70A
march 2023 – may 2023
LMR36501
,
LMR36502
PRODUCTION DATA
1
1
特性
2
应用
3
说明
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD (Commercial) Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
System Characteristics
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Enable, Shutdown, and Start-up
8.3.2
Adjustable Switching Frequency (with RT)
8.3.3
Power-Good Output Operation
8.3.4
Internal LDO, VCC UVLO, and VOUT/FB Input
8.3.5
Bootstrap Voltage and VBOOT-UVLO (BOOT Terminal)
8.3.6
Output Voltage Selection
8.3.7
Soft Start and Recovery from Dropout
8.3.7.1
Soft Start
8.3.7.2
Recovery from Dropout
8.3.8
Current Limit and Short Circuit
8.3.9
Thermal Shutdown
8.3.10
Input Supply Current
8.4
Device Functional Modes
8.4.1
Shutdown Mode
8.4.2
Standby Mode
8.4.3
Active Mode
8.4.3.1
CCM Mode
8.4.3.2
AUTO Mode - Light Load Operation
8.4.3.2.1
Diode Emulation
8.4.3.2.2
Frequency Reduction
8.4.3.3
FPWM Mode - Light Load Operation
8.4.3.4
Minimum On-time Operation
8.4.3.5
Dropout
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Choosing the Switching Frequency
9.2.2.2
Setting the Output Voltage
9.2.2.2.1
VOUT / FB for Adjustable Output
9.2.2.3
Inductor Selection
9.2.2.4
Output Capacitor Selection
9.2.2.5
Input Capacitor Selection
9.2.2.6
CBOOT
9.2.2.7
VCC
9.2.2.8
CFF Selection
9.2.2.9
External UVLO
9.2.2.10
Maximum Ambient Temperature
9.2.3
Application Curves
9.3
Best Design Practices
9.4
Power Supply Recommendations
9.5
Layout
9.5.1
Layout Guidelines
9.5.1.1
Ground and Thermal Considerations
9.5.2
Layout Example
10
Device and Documentation Support
10.1
Device Support
10.1.1
Device Nomenclature
10.2
Documentation Support
10.2.1
Related Documentation
10.3
接收文档更新通知
10.4
支持资源
10.5
Trademarks
10.6
静电放电警告
10.7
术语表
11
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RPE|9
MPQF528A
散热焊盘机械数据 (封装 | 引脚)
RPE|9
QFND682A
订购信息
zhcso70a_oa
zhcso70a_pm
Data Sheet
LMR3650x
3V 至 65V、
100mA 和 150mA
宽 V
IN
同步降压转换器(针对尺寸和轻负载效率进行了优化)