Manufacturer Part Number
LT3991EMSE-3.3#TRPBF
Manufacturer
Analog Devices
Introduction
The LT3991EMSE-3.3#TRPBF is a robust step-down DC-DC switching regulator designed for power management applications.
Product Features and Performance
Step-Down Voltage Regulator
Fixed 3.3V Output Voltage
Maximum 1.2A Output Current
Wide Input Voltage Range from 4.3V to 55V
Adjustable Switching Frequency between 200kHz to 2MHz
No Synchronous Rectification
Thermal Performance Operating Range from -40°C to 125°C
Surface Mountable
Exposed Pad for Enhanced Thermal Dissipation
Product Advantages
High Input Voltage Capability
Flexible Switching Frequency for Design Customization
Fixed Output for Simplified Design
Good Thermal Management
Wide Operating Temperature Range Suitable for Harsh Environments
Key Technical Parameters
Voltage - Input (Min): 4.3V
Voltage - Input (Max): 55V
Voltage - Output (Min/Fixed): 3.3V
Current - Output: 1.2A
Frequency - Switching: 200kHz ~ 2MHz
Quality and Safety Features
Built-In Thermal Shutdown
Overcurrent Protection
Robust Operating Temperature Range
Compatibility
Compatible with Various Input Sources within Voltage Range
Suitable for Surface Mount Technology (SMT) Assembly Lines
MSOP-10 Exposed Pad for Easy Integration
Application Areas
Power Supplies for Industrial Equipment
Automotive Electronics
Telecommunications Infrastructure
Portable and Battery-Powered Devices
Consumer Electronics
Product Lifecycle
Active Product Status
Not Reported Nearing Discontinuation
Availability of Replacements or Upgrades Not Specified
Several Key Reasons to Choose This Product
Support for High Input Voltage Range Suitable for Diverse Applications
Design Flexibility with Adjustable Switching Frequency
Ease of Use with Fixed Voltage Output
Reliable Operation in Extreme Temperatures
Proven Manufacturer with a Strong Reputation in Power Management Solutions
LT3991EMSE-5Linear Technology / Analog Devices
LT3991IMSE-5LT