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LT3973IDD-3.3#TRPBF

Part No LT3973IDD-3.3#TRPBF
Manufacturer Linear Technology
Catalog PMIC - Voltage Regulators - DC DC Switching Regulators
Description IC REG BUCK 3.3V 0.75A 10DFN / Conv DC-DC 4.2V to 42V Step Down Single-Out 3.3V 0.75A Automotive 10-Pin DFN EP T/R
Datasheet
Sample
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Categories Integrated Circuits (ICs)
Manufacturer Linear Technology
Packaging Reel package
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Fixed
Number of Outputs 1
Input Voltage MIN 4.2V
Voltage Input MAX 42V
Output Voltage 3.3V
Output Current 750mA
Frequency - Switching 195kHz ~ 2.15MHz
Synchronous Rectifier No
Operating Temperature Range -40°C ~ 125°C (TJ)
Mounting SMD
Package 10-WFDFN Exposed Pad
Manufacturer Package 10-DFN (3x3)
Win Source Part Number 781366-LT3973IDD-3.3#TRPBF
Popularity Medium
Supply and Demand Status Limited
Family Name LT3973I
ECCN EAR99
Country of Origin Malaysia
Halogen Free Compliant
Estimated EOL Date 2031
Ultra Librarian 3D Model Ultra Librarian LT3973IDD-3.3#TRPBF CAD Model

Description

The LT3973IDD-3.3#TRPBF is a robust, high-efficiency, step-down DC/DC converter designed by Linear Technology, a brand of Analog Devices. This advanced power management integrated circuit (IC) is engineered to convert a higher input voltage to a fixed 3.3V output voltage with a maximum output current of up to 3A. Its wide input voltage range from 4.3V to 38V makes it suitable for a variety of applications, including automotive, industrial, and distributed power systems.

One of the key features of the LT3973IDD-3.3#TRPBF is its ability to maintain a high level of efficiency across a wide range of load conditions, thanks to its low ripple Burst Mode operation. This feature not only ensures energy savings but also helps to minimize the generation of unwanted RF noise, making it ideal for sensitive electronics and RF applications. Additionally, the converter’s internal 2.8A, 60V power switch provides the capability to handle high power levels with ease.

The LT3973IDD-3.3#TRPBF is also designed with protection features in mind. It includes thermal shutdown, reverse battery protection, and current limiting to safeguard the IC and the downstream circuitry from potential damage. The frequency of operation can be set with an external resistor, or it can be synchronized to an external clock, providing flexibility in design optimization for noise-sensitive applications.

This converter is available in a compact 10-pin DFN package with a thermally efficient pad, making it suitable for space-constrained applications. The LT3973IDD-3.3#TRPBF is also designed for ease of use, requiring only a few external components to create a complete power supply solution, simplifying the design process and accelerating time-to-market for product development.

Whether you're developing power supplies for automotive systems, portable devices, or complex industrial equipment, the LT3973IDD-3.3#TRPBF from Linear Technology provides a reliable and efficient power conversion solution that meets the rigorous demands of modern electronic applications.

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