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LM26400Y Dual 2-A, 500-kHz Wide Input Range Buck Regulator
SNVS457D
February 2007 – October 2015
LM26400Y
PRODUCTION DATA.
CONTENTS
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LM26400Y Dual 2-A, 500-kHz Wide Input Range Buck Regulator
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and 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
Overcurrent Protection
7.3.2
Loop Stability
7.3.3
Load Step Response
7.4
Device Functional Modes
7.4.1
Start-Up and Shutdown
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
LM26400Y Design Example 1
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.3
Application Curves
8.2.2
LM26400Y Design Example 2
9
Power Supply Recommendations
9.1
Low Input Voltage Considerations
9.2
Programming Output Voltage
10
Layout
10.1
Layout Guidelines
10.1.1
Thermal Shutdown
10.1.2
Power Loss Estimation
10.1.3
Inductor Selection
10.1.4
Output Capacitor Selection
10.1.5
Input Capacitor Selection
10.1.6
Catch Diode Selection
10.2
Layout Example
10.3
Thermal Considerations
11
Device and Documentation Support
11.1
Device Support
11.1.1
Third-Party Products Disclaimer
11.2
Community Resources
11.3
Trademarks
11.4
Electrostatic Discharge Caution
11.5
Glossary
12
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
PWP|16
MPDS371A
NHQ|16
MPDS425
Thermal pad, mechanical data (Package|Pins)
PWP|16
PPTD288A
Orderable Information
snvs457d_oa
snvs457d_pm
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