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Product Detailed Parameters
- Description：IC REG BUCK ADJ 750MA 10DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：4.2V
- Voltage - Input (Max)：42V
- Voltage - Output (Min/Fixed)：1.21V
- Voltage - Output (Max)：24V
- Current - Output：750mA
- Frequency - Switching：195kHz ~ 2.15MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：10-WFDFN Exposed Pad
- Supplier Device Package：10-DFN (3x3)
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Overview
The LT3973EDD#TRPBF is a monolithic buck switching regulator manufactured by Analog Devices Inc. It accepts an input voltage range from 4.2V to 42V and delivers up to 750mA of output current. The device features adjustable switching frequencies ranging from 195kHz to 2.15MHz, allowing for optimization of efficiency and component size. It operates with a low quiescent current of 2.5µA and supports positive adjustable output voltages between 1.21V and 24V. The IC is housed in a 10-WFDFN package with an exposed pad and functions within a junction temperature range of -40°C to 125°C.
Feature Summary
- Adjustable switching frequency capability spanning from 195kHz to 2.15MHz
- Wide input voltage acceptance up to 42V with low static current consumption
- Positive adjustable output voltage configuration with integrated shutdown control
Applications
- Industrial applications requiring wide input voltage ranges
- Embedded systems utilizing Linduino One platforms
- General-purpose DC-DC step-down conversion circuits
Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm that the ordering part number matches the exact thermal and electrical specifications required for the target application. Cross-reference the manufacturer's official documentation to ensure compliance with RoHS standards and availability status before finalizing procurement plans.
Selection Notes
Select this component when designing systems requiring a wide input voltage range up to 42V with moderate output current capabilities. Consider the adjustable frequency feature to optimize external component sizes or minimize electromagnetic interference. Ensure the thermal performance of the 10-WFDFN package aligns with the expected power dissipation in the intended operating environment.
Part Context
The LT3973 belongs to a family of high-voltage buck regulators designed for versatile power management tasks. This specific variant utilizes a DFN package suitable for surface-mount assembly. It complements other Analog Devices PMIC solutions by providing efficient voltage regulation in compact form factors for space-constrained electronic designs.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation.
