Manufacturer Part Number
LT3991EDD#TRPBF
Manufacturer
Analog Devices, Inc.
Introduction
High-Efficiency, 55V, 1.2A Synchronous Step-Down Regulator
Product Features and Performance
Wide 4.3V to 55V input voltage range
Adjustable output voltage from 1.19V to 30V
Up to 1.2A continuous output current
200kHz to 2MHz switching frequency
Synchronous rectification for high efficiency
Internal soft-start and thermal shutdown
Low 18μA quiescent current in no-load operation
3mm x 3mm DFN package
Product Advantages
High-efficiency power conversion
Wide input voltage range
Small size and high power density
Flexible output voltage configuration
Robust thermal and overcurrent protection
Key Technical Parameters
Input Voltage Range: 4.3V to 55V
Output Voltage Range: 1.19V to 30V
Output Current: Up to 1.2A
Switching Frequency: 200kHz to 2MHz
Quiescent Current: 18μA (no load)
Package: 10-DFN (3x3)
Quality and Safety Features
RoHS3 compliant
Thermal shutdown
Overcurrent protection
Compatibility
Suitable for a wide range of applications that require a small, efficient, and adjustable step-down regulator
Application Areas
Industrial and consumer electronics
Automotive electronics
Portable devices
Power supplies
LED drivers
Product Lifecycle
This product is an active and widely used device in the Analog Devices portfolio.
Replacements and upgrades may be available in the future as technology advances.
Several Key Reasons to Choose This Product
Wide input voltage range for design flexibility
High efficiency for power-sensitive applications
Small package size for compact designs
Adjustable output voltage for customized solutions
Robust protection features for reliable operation
Proven performance and reliability from Analog Devices