SLVS297R
April 2000 – May 2026
LM317M
,
LM317MQ
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics (Both Legacy and New Chip)
5.6
Typical Characteristics
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagram
6.3
Feature Description
6.3.1
Current Limit
6.3.2
Dropout Voltage (VDO)
6.3.3
Thermal Shutdown
6.4
Device Functional Modes
6.4.1
Normal Operation
6.4.2
Dropout Operation
7
Applications and Implementation
7.1
Application Information
7.2
Typical Application
7.2.1
Design Requirements
7.2.2
Detailed Design Procedure
7.2.2.1
Input and Output Capacitor Requirements (Legacy Chip)
7.2.2.2
Input and Output Capacitor Requirements (New Chip)
7.2.2.3
Feedback Resistors
7.2.2.4
Adjustment Pin Capacitor
7.2.2.5
Protection Diodes
7.2.2.6
Overload Recovery
7.2.2.7
Estimating Junction Temperature
7.2.2.8
Polarity Reversal Protection
7.2.2.9
Reverse Current
7.2.2.10
Power Dissipation (PD)
7.2.3
Application Curves
7.3
Power Supply Recommendations
7.4
Layout
7.4.1
Layout Guidelines
7.4.2
Layout Example
8
Device and Documentation Support
8.1
Device Support
8.1.1
Development Support
8.1.1.1
Evaluation Module
8.1.2
Device Nomenclature
8.2
Receiving Notification of Documentation Updates
8.3
Support Resources
8.4
Trademarks
8.5
Electrostatic Discharge Caution
8.6
Glossary
9
Revision History
10
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
KVU|3
MPSF018D
DCY|4
MPDS094A
Thermal pad, mechanical data (Package|Pins)
Data Sheet
LM317M, LM317MQ Adjustable Floating Regulators