ZHCSHM1C
September 2017 – March 2018
LMZM33603
PRODUCTION DATA.
1
特性
2
应用
简化电路原理图
3
说明
安全操作区域
4
修订历史记录
5
Pin Configuration and Functions
Pin 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 (VIN = 5 V)
6.8
Typical Characteristics (VIN = 12 V)
6.9
Typical Characteristics (VIN = 24 V)
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Adjusting the Output Voltage
7.3.2
Feed-Forward Capacitor, CFF
7.3.3
Output Current vs Output Voltage
7.3.4
Voltage Dropout
7.3.5
Switching Frequency (RT)
7.3.6
Synchronization (SYNC)
7.3.7
Input Capacitors
7.3.8
Output Capacitors
7.3.9
Output On/Off Enable (EN)
7.3.10
Programmable Undervoltage Lockout (UVLO)
7.3.11
Power Good (PGOOD)
7.3.12
Overcurrent Protection (OCP)
7.3.13
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Active Mode
7.4.2
Shutdown 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
Custom Design With WEBENCH® Tools
8.2.2.2
Output Voltage Setpoint
8.2.2.3
Feed-Forward Capacitor (CFF)
8.2.2.4
Setting the Switching Frequency
8.2.2.5
Input Capacitors
8.2.2.6
Output Capacitor Selection
8.2.2.7
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Examples
10.3
Theta JA vs PCB Area
10.4
EMI
10.4.1
EMI Plots
10.5
Package Specifications
11
器件和文档支持
11.1
器件支持
11.1.1
Third-Party Products Disclaimer
11.1.2
使用 WEBENCH® 工具创建定制设计
11.2
相关文档
11.3
接收文档更新通知
11.4
社区资源
11.5
商标
11.6
静电放电警告
11.7
术语表
12
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
RLR|18
MPQF481B
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcshm1c_oa
zhcshm1c_pm
10.5
Package Specifications
Table 9.
Package Specifications Table
LMZM33603
VALUE
UNIT
Weight
0.74
grams
Flammability
Meets UL 94 V-O
MTBF Calculated Reliability
Per Bellcore TR-332, 50% stress, T
A
= 40°C, ground benign
98.0
MHrs