SNVSCR9A
October 2024 – December 2024
LM61480T-Q1
,
LM61495T-Q1
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Device Comparison Table
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
Timing Requirements
6.7
Switching Characteristics
6.8
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Output Voltage Selection
7.3.2
Enable EN Pin and Use as VIN UVLO
7.3.3
SYNC/MODE Uses for Synchronization
7.3.4
Clock Locking
7.3.5
Adjustable Switching Frequency
7.3.6
RESET Output Operation
7.3.7
Internal LDO, VCC UVLO, and BIAS Input
7.3.8
Bootstrap Voltage and VCBOOT-UVLO (CBOOT Pin)
7.3.9
Adjustable SW Node Slew Rate
7.3.10
Spread Spectrum
7.3.11
Soft Start and Recovery From Dropout
7.3.12
Overcurrent and Short-Circuit Protection
7.3.13
Hiccup
7.3.14
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Shutdown Mode
7.4.2
Standby Mode
7.4.3
Active Mode
7.4.3.1
Peak Current Mode Operation
7.4.3.2
Auto Mode Operation
7.4.3.2.1
Diode Emulation
7.4.3.3
FPWM Mode Operation
7.4.3.4
Minimum On-time (High Input Voltage) Operation
7.4.3.5
Dropout
7.4.3.6
Recovery from Dropout
7.4.3.7
Other Fault Modes
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Choosing the Switching Frequency
8.2.2.2
Setting the Output Voltage
8.2.2.3
Inductor Selection
8.2.2.4
Output Capacitor Selection
8.2.2.5
Input Capacitor Selection
8.2.2.6
BOOT Capacitor
8.2.2.7
BOOT Resistor
8.2.2.8
VCC
8.2.2.9
CFF and RFF Selection
8.2.2.10
RSPSP Selection
8.2.2.11
RT Selection
8.2.2.12
RMODE Selection
8.2.2.13
External UVLO
8.2.2.14
Maximum Ambient Temperature
8.2.3
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.1.1
Ground and Thermal Considerations
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Device Support
9.1.1
Third-Party Products Disclaimer
9.2
Documentation Support
9.2.1
Related Documentation
9.3
Receiving Notification of Documentation Updates
9.4
Support Resources
9.5
Trademarks
9.6
Glossary
9.7
Electrostatic Discharge Caution
10
Revision History
11
Mechanical, Packaging, and Orderable Information
パッケージ・オプション
メカニカル・データ(パッケージ|ピン)
VAM|16
MPQF804
サーマルパッド・メカニカル・データ
発注情報
snvscr9a_oa
snvscr9a_pm
7.4
Device Functional Modes