SNVS821A
January 2014 – March 2014
PRODUCTION DATA.
1
Features
2
Applications
3
Description
4
Revision History
5
Terminal Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
Handling 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
PWM Input
7.3.1.1
PWM Input Frequency Range
7.3.1.2
PWM Low Detect
7.3.2
HWEN Input
7.3.3
Current Select Inputs (IS1 And IS0)
7.3.4
ILOW Input
7.3.5
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Operation with an Unused Current Sink
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
Step-by-Step Design Procedure
8.2.2.2
Maximum Output Power
8.2.2.2.1
Peak Current Limited
8.2.2.2.2
Output Voltage Limited
8.2.2.3
Boost Inductor Selection
8.2.2.4
Output Capacitor Selection
8.2.2.5
Schottky Diode Selection
8.2.2.6
Input Capacitor Selection
8.2.3
Application Performance Plots
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.1.1
Boost Output Capacitor Placement
10.1.2
Schottky Diode Placement
10.1.3
Inductor Placement
10.1.4
Boost Input Capacitor Placement
10.2
Layout Example
11
Device and Documentation Support
11.1
Device Support
11.1.1
Third-Party Products Disclaimer
11.2
Trademarks
11.3
Electrostatic Discharge Caution
11.4
Glossary
12
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
YFQ|12
MXBG170
散热焊盘机械数据 (封装 | 引脚)
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