SNVSB53C
February 2018 – March 2023
LMZM23600
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Device Comparison
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
System Characteristics
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Control Scheme
8.3.2
Soft-Start Function
8.3.3
Enable and External UVLO Function
8.3.4
Current Limit
8.3.5
Hiccup Mode
8.3.6
Power Good (PGOOD) Function
8.3.7
MODE/SYNC Function
8.3.7.1
Forced PWM Mode
8.3.7.2
Auto PFM Mode
8.3.7.3
Dropout Mode
8.3.7.4
SYNC Operation
8.3.8
Thermal Protection
8.4
Device Functional Modes
8.4.1
Shutdown
8.4.2
FPWM Operation
8.4.3
Auto PFM Mode Operation
9
Application and Implementation
9.1
Application Information
9.2
Typical Applications
9.2.1
Design Requirements
9.2.1.1
Maximum Input Voltage for VOUT < 2.5 V
9.2.2
Detailed Design Procedure
9.2.2.1
Custom Design With WEBENCH® Tools
9.2.2.2
Input Capacitor Selection
9.2.2.3
Output Capacitor Selection
9.2.2.4
Feedback Voltage Divider for Adjustable Output Voltage Versions
9.2.2.5
RPU - PGOOD Pullup Resistor
9.2.2.6
VIN Divider and Enable
9.2.3
Application Curves
9.2.3.1
VOUT = 5 V
9.2.3.2
VOUT = 3.3 V
9.2.3.3
VOUT = 12 V
9.2.3.4
VOUT = 15 V
9.2.3.5
VOUT = 2.5 V
9.2.3.6
VOUT = 1.2 V and VOUT = 1.8 V
9.2.3.7
VOUT = 5 V and 3.3 V Fixed Output Options
9.3
Best Design Practices
9.4
Power Supply Recommendations
9.4.1
Supply Voltage Range
9.4.2
Supply Current Capability
9.4.3
Supply Input Connections
9.4.3.1
Voltage Drops
9.4.3.2
Stability
9.5
Layout
9.5.1
Layout Guidelines
9.5.1.1
Thermal Design
9.5.2
Layout Examples
10
Device and Documentation Support
10.1
Device Support
10.1.1
Third-Party Products Disclaimer
10.1.2
Development Support
10.1.2.1
Custom Design With WEBENCH® Tools
10.2
Documentation Support
10.2.1
Related Documentation
10.3
Receiving Notification of Documentation Updates
10.4
Support Resources
10.5
Trademarks
10.6
Electrostatic Discharge Caution
10.7
Glossary
11
Mechanical, Packaging, and Orderable Information
11.1
Tape and Reel Information
9.2.1
Design Requirements