SNVSCB1C
December 2022 – February 2024
TPSM33615
,
TPSM33625
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
System Characteristics
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Input Voltage Range
7.3.2
Output Voltage Selection
7.3.3
Input Capacitors
7.3.4
Output Capacitors
7.3.5
Enable, Start-Up, and Shutdown
7.3.6
External CLK SYNC (with MODE/SYNC)
7.3.6.1
Pulse-Dependent MODE/SYNC Pin Control
7.3.7
Switching Frequency (RT)
7.3.8
Power-Good Output Operation
7.3.9
Internal LDO, VCC and VOUT/FB Input
7.3.10
Bootstrap Voltage and VBOOT-UVLO (BOOT Terminal)
7.3.11
Spread Spectrum
7.3.12
Soft Start and Recovery from Dropout
7.3.12.1
Recovery from Dropout
7.3.13
Overcurrent Protection (Hiccup Mode)
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
CCM Mode
7.4.3.2
Auto Mode – Light-Load Operation
7.4.3.2.1
Diode Emulation
7.4.3.2.2
Frequency Reduction
7.4.3.3
FPWM Mode – Light-Load Operation
7.4.3.4
Minimum On-Time (High Input Voltage) Operation
7.4.3.5
Dropout
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
Custom Design With WEBENCH® Tools
8.2.2.2
Choosing the Switching Frequency
8.2.2.3
Setting the Output Voltage
8.2.2.4
Input Capacitor Selection
8.2.2.5
Output Capacitor Selection
8.2.2.6
VCC
8.2.2.7
CFF Selection
8.2.2.8
Power Good Signal
8.2.2.9
Maximum Ambient Temperature
8.2.2.10
Other Connections
8.2.3
Application Curves
8.3
Best Design Practices
8.4
Power Supply Recommendations
8.5
Layout
8.5.1
Layout Guidelines
8.5.1.1
Ground and Thermal Considerations
8.5.2
Layout Example
9
Device and Documentation Support
9.1
Device Support
9.1.1
Third-Party Products Disclaimer
9.1.2
Development Support
9.1.2.1
Custom Design With WEBENCH® Tools
9.1.3
Device Nomenclature
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
Electrostatic Discharge Caution
9.7
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RDN|11
MPQF642B
Thermal pad, mechanical data (Package|Pins)
Orderable Information
snvscb1c_oa
snvscb1c_pm
8.5.2
Layout Example
Figure 8-23
Example Layout