Jump to main content
48V Input, 400 mA Output, 2.2 MHz Switching Frequency, Integrated Switch Step-Down Regulator
Search
Description
Features
Applications
1
Typical Application
2
Product Family
3
Block Diagram
4
Pin Configuration
4.1
Package
4.2
Pin Description
5
Functional Description
5.1
Theory of Operation
5.2
Pulse-Width Modulation
5.3
Pulse Frequency Mode of Operation (PFM)
5.4
Internal Reference Voltage V
REF
5.5
Internal Compensation
5.6
Enable Input
5.7
Soft Start
5.8
Undervoltage Lockout
5.9
Overtemperature Protection
5.10
High-Side Drive and Bootstrap
5.11
Integrated Bootstrap Diode
5.12
Frequency Dithering
5.13
Power Good
5.14
Overcurrent Protection
5.15
Overvoltage Protection
6
Electrical Characteristics
6.1
Absolute Maximum Ratings
6.2
DC Characteristics
6.3
Temperature Specifications
7
Typical Performance Curves
8
Application Information
8.1
Adjustable Output Voltage Calculations
8.2
Inductor Selection and Slope Compensation
8.3
Freewheeling Diode
8.4
Input Capacitor Selection
8.5
Output Capacitor Selection
8.6
Bootstrap Charging and Maximum Duty Cycle Limitations
8.7
Input Voltage Limitations
8.8
Light Load Efficiency Guidelines
8.9
PCB Layout Information
9
Typical Application Circuits
10
Packaging Information
11
Revision History
12
Product Identification System
13
Product Change Notification Service
Microchip Information
Trademarks
Legal Notice
Microchip Devices Code Protection Feature
