ZHCSHU0C
March 2018 – October 2021
LM51501-Q1
PRODUCTION DATA
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 Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Enable (EN Pin)
8.3.2
High Voltage VCC Regulator (PVCC, AVCC Pin)
8.3.3
Power-On Voltage Selection (VSET Pin)
8.3.4
Switching Frequency (RT Pin)
8.3.5
Clock Synchronization (SYNC Pin in SS Configuration)
8.3.6
Current Sense, Slope Compensation, and PWM (CS Pin)
8.3.7
Current Limit (CS Pin)
8.3.8
Feedback and Error Amplifier (COMP Pin)
8.3.9
Automatic Wake-Up and Standby
8.3.10
Boost Status Indicator (STATUS Pin)
8.3.11
Maximum Duty Cycle Limit and Minimum Input Supply Voltage
8.3.12
MOSFET Driver (LO Pin)
8.3.13
Thermal Shutdown
8.4
Device Functional Modes
8.4.1
Shutdown Mode
8.4.2
Standby Mode
8.4.3
Wake-Up Mode
8.4.3.1
Start-Stop Configuration (SS Configuration)
8.4.3.2
Emergency-Call Configuration (EC Configuration)
9
Application and Implementation
9.1
Application Information
9.1.1
Bypass Switch / Disconnection Switch Control
9.1.2
Loop Response
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Custom Design With WEBENCH® Tools
9.2.2.2
RSET Resistor
9.2.2.3
RT Resistor
9.2.2.4
Inductor Selection (LM)
9.2.2.5
Current Sense (RS)
9.2.2.6
Slope Compensation Ramp (RSL)
9.2.2.7
Output Capacitor (COUT)
9.2.2.8
Loop Compensation Component Selection and Maximum ESR
9.2.2.9
PVCC Capacitor, AVCC Capacitor, and AVCC Resistor
9.2.2.10
VOUT Filter (CVOUT, RVOUT)
9.2.2.11
Input Capacitor
9.2.2.12
MOSFET Selection
9.2.2.13
Diode Selection
9.2.2.14
Efficiency Estimation
9.2.3
Application Curves
9.3
System Examples
9.3.1
Lower Standby Threshold in SS Configuration
9.3.2
Dithering Using Dither Enabled Device
9.3.3
Clock Synchronization With LM5140
9.3.4
Dynamic Frequency Change
9.3.5
Dithering Using an External Clock
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Device Support
12.1.1
第三方产品免责声明
12.1.2
Development Support
12.1.2.1
Custom Design With WEBENCH® Tools
12.2
接收文档更新通知
12.3
支持资源
12.4
Trademarks
12.5
Electrostatic Discharge Caution
12.6
术语表
13
Mechanical, Packaging, and Orderable Information
封装选项
请参考 PDF 数据表获取器件具体的封装图。
机械数据 (封装 | 引脚)
RUM|16
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcshu0c_oa
zhcshu0c_pm
9.3
System Examples