ZHCSQP8J
December 2008 – June 2022
LM5088
,
LM5088-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: LM5088
6.3
ESD Ratings: LM5088-Q1
6.4
Recommended Operating Conditions
6.5
Thermal Information
6.6
Electrical Characteristics
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
High Voltage Low-Dropout Regulator
7.3.2
Line Undervoltage Detector
7.3.3
Oscillator and Sync Capability
7.3.4
Error Amplifier and PWM Comparator
7.3.5
Ramp Generator
7.3.6
Dropout Voltage Reduction
7.3.7
Frequency Dithering (LM5088-1 Only)
7.3.8
Cycle-by-Cycle Current Limit
7.3.9
Overload Protection Timer (LM5088-2 Only)
7.3.10
Soft Start
7.3.11
HG Output
7.3.12
Thermal Protection
7.4
Device Functional Modes
7.4.1
EN Pin Modes
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
Timing Resistor
8.2.2.2
Output Inductor
8.2.2.3
Current Sense Resistor
8.2.2.4
Ramp Capacitor
8.2.2.5
Output Capacitors
8.2.2.6
Input Capacitors
8.2.2.7
VCC Capacitor
8.2.2.8
Bootstrap Capacitor
8.2.2.9
Soft-Start Capacitor
8.2.2.10
Output Voltage Divider
8.2.2.11
UVLO Divider
8.2.2.12
Restart Capacitor (LM5008-2 Only)
8.2.2.13
MOSFET Selection
8.2.2.14
Diode Selection
8.2.2.15
Snubber Components Selection
8.2.2.16
Error Amplifier Compensation
8.2.3
Application Curves
9
Power Supply Recommendations
9.1
Thermal Considerations
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
术语表
12
Mechanical, Packaging, and Orderable Information
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
zhcsqp8j_oa
zhcsqp8j_pm
8.2
Typical Application
Figure 8-1
LM5088 Typical Application Schematic