SNVS774Q
May 2004 – June 2020
LM117
,
LM317-N
PRODUCTION DATA.
1
Features
2
Applications
Typical Application
3
Description
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
Pin Functions, Metal Can Packages
Pin Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information, LM117
7.5
Thermal Information, LM317-N
7.6
LM117 Electrical Characteristics
7.7
LM317-N Electrical Characteristics
7.8
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Load Regulation
8.4
Device Functional Modes
8.4.1
External Capacitors
8.4.2
Protection Diodes
9
Application and Implementation
9.1
Application Information
9.2
Typical Applications
9.2.1
1.25-V to 25-V Adjustable Regulator
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.1.3
Application Curve
9.2.2
5-V Logic Regulator With Electronic Shutdown
9.2.3
Slow Turnon 15-V Regulator
9.2.4
Adjustable Regulator With Improved Ripple Rejection
9.2.5
High Stability 10-V Regulator
9.2.6
High-Current Adjustable Regulator
9.2.7
Emitter-Follower Current Amplifier
9.2.8
1-A Current Regulator
9.2.9
Common-Emitter Amplifier
9.2.10
Low-Cost 3-A Switching Regulator
9.2.11
Current-Limited Voltage Regulator
9.2.12
Adjusting Multiple On-Card Regulators With Single Control
9.2.13
AC Voltage Regulator
9.2.14
12-V Battery Charger
9.2.15
Adjustable 4-A Regulator
9.2.16
Current-Limited 6-V Charger
9.2.17
Digitally Selected Outputs
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.1.1
Thermal Considerations
11.1.1.1
Heatsink Requirements
11.1.1.2
Heatsinking Surface Mount Packages
11.1.1.2.1
Heatsinking the SOT-223 (DCY) Package
11.1.1.2.2
Heatsinking the TO-263 (KTT) Package
11.1.1.2.3
Heatsinking the TO-252 (NDP) Package
11.2
Layout Examples
12
Device and Documentation Support
12.1
Documentation Support
12.1.1
Related Documentation
12.2
Related Links
12.3
Receiving Notification of Documentation Updates
12.4
Support Resources
12.5
Trademarks
12.6
Electrostatic Discharge Caution
12.7
Glossary
13
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
NDG|3
MMSF017A
NDP|3
MMSF021A
KTT|3
MPSF006E
DCY|4
MPDS094A
NDE|3
MMSF014
NDT|3
MMSF002
散热焊盘机械数据 (封装 | 引脚)
KTT|3
PPTD276A
DCY|4
QFND222B
订购信息
snvs774q_oa
snvs774q_pm
1
Features
For a newer drop-in alternative, see the
LM317
Typ. 0.1% load regulation
Typ. 0.01%/V line regulation
1.5-A output current
Adjustable output down to 1.25 V
Current limit constant with temperature
80-dB ripple rejection
Short-circuit protected output
−55°C to 150°C operating temperature range (LM117)