SNVS581M
February 2013 – October 2020
LM22679
,
LM22679-Q1
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
Handling Ratings: LM22679
6.3
Handling Ratings: LM22679-Q1
6.4
Recommended Operating Conditions
6.5
Thermal Information
6.6
Electrical Characteristics
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
UVLO
7.3.2
Soft-Start
7.3.3
Bootstrap Supply
7.3.4
Internal Compensation
7.4
Device Functional Modes
7.4.1
Shutdown Mode
7.4.2
Active Mode
7.4.3
Current Limit
7.4.4
Current Limit Adjustment
7.4.5
Thermal Protection
7.4.6
Duty-Cycle Limits
8
Application and Implementation
8.1
Application Information
8.1.1
Output Voltage Divider Selection
8.1.2
Power Diode
8.2
Typical Application
8.2.1
Typical Buck Regulator Application
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
External Components
8.2.1.2.2
Inductor
8.2.1.2.3
Input Capacitor
8.2.1.2.4
Output Capacitor
8.2.1.2.5
Bootstrap Capacitor
8.2.1.3
Application Curve
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
10.3
Thermal Considerations
11
Device and Documentation Support
11.1
Documentation Support
11.1.1
Related Documentation
11.2
Support Resources
11.3
Receiving Notification of Documentation Updates
11.4
Trademarks
11.5
Glossary
11.6
Electrostatic Discharge Caution
Package Options
Mechanical Data (Package|Pins)
NDR|7
MMSF023A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
snvs581m_oa
snvs581m_pm
6.3
Handling Ratings: LM22679-Q1
MIN
MAX
UNIT
T
stg
Storage temperature range
–65
150
°C
V
(ESD)
Electrostatic discharge
Human body model (HBM), per AEC Q100-002
(1)
–2
2
kV
(1)
AEC Q100-002 indicates HBM stressing is done in accordance with the ANSI/ESDA/JEDEC JS-001 specification.