ZHCSHU8F
October 2008 – July 2019
LM5575-Q1
PRODUCTION DATA.
1
特性
2
应用
3
说明
Device Images
简化原理图
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
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Shutdown and Standby
7.3.2
Current Limit
7.3.3
Soft Start
7.3.4
Thermal Protection
7.4
Device Functional Modes
7.4.1
High-Voltage Start-Up Regulator
7.4.2
Oscillator and Sync Capability
7.4.3
Error Amplifier and PWM Comparator
7.4.4
Ramp Generator
7.4.5
BOOST Pin
7.4.6
Maximum Duty Cycle and Input Dropout Voltage
8
Application and Implementation
8.1
Application Information
8.1.1
Bias Power Dissipation Reduction
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
External Components
8.2.2.3
R3 (RT)
8.2.2.4
L1
8.2.2.5
C3 (CRAMP)
8.2.2.6
C9, C10
8.2.2.7
D1
8.2.2.8
C1, C2
8.2.2.9
C8
8.2.2.10
C7
8.2.2.11
C4
8.2.2.12
R5, R6
8.2.2.13
R1, R2, C12
8.2.2.14
R7, C11
8.2.2.15
R4, C5, C6
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Examples
10.3
Thermal Considerations
11
器件和文档支持
11.1
器件支持
11.1.1
使用 WEBENCH® 工具创建定制设计
11.2
接收文档更新通知
11.3
社区资源
11.4
商标
11.5
静电放电警告
11.6
Glossary
12
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
PWP|16
MPDS371A
散热焊盘机械数据 (封装 | 引脚)
PWP|16
PPTD288A
订购信息
zhcshu8f_oa
zhcshu8f_pm
8.2.3
Application Curves
Figure 21.
Oscillator Frequency vs R
T
A.
Figure 22.
Demoboard Efficiency vs I
OUT
and V
IN
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