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Product Detailed Parameters
- Description：IC REG BUCK ADJ 2.5A 16MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：4.3V
- Voltage - Input (Max)：42V
- Voltage - Output (Min/Fixed)：1.197V
- Voltage - Output (Max)：40.74V
- Current - Output：2.5A
- Frequency - Switching：200kHz ~ 2.25MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-TFSOP (0.118", 3.00mm Width) Exposed Pad
- Supplier Device Package：16-MSOP-EP
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Overview
The LT3975HMSE#TRPBF is a monolithic buck switching regulator manufactured by Analog Devices Inc. It accepts an input voltage range from 4.3V to 42V and delivers up to 2.5A of load current. The device features a low quiescent current of 2.7µA during no-load regulation and supports adjustable switching frequencies up to 2MHz. It operates within a temperature range of -40°C to +125°C and utilizes an MSOP-10 package.
Feature Summary
- Maintains high efficiency at low output currents through low ripple Burst Mode operation
- Provides current limit foldback to restrict power dissipation during short circuit conditions
- Sustains a low dropout voltage of 500mV when input voltage falls below the programmed output level
Applications
- Automotive cold crank applications requiring wide input voltage tolerance
- Industrial systems utilizing DC-to-DC conversion with high input voltages
- Battery-powered equipment requiring extended standby life via low quiescent current
Procurement Notes
Verify the specific suffix and tape-and-reel configuration against official documentation before ordering. Confirm that the MSOP-10 package matches your PCB footprint requirements. Ensure thermal management strategies align with the maximum operating temperature specifications provided in the datasheet.
Selection Notes
Select this component for designs requiring a wide input voltage range up to 42V combined with high peak current capability. Consider the adjustable frequency feature for optimizing external component size or avoiding EMI conflicts. Evaluate the low quiescent current specification if battery longevity is a critical design constraint.
Part Context
This part belongs to the LT3975 series of step-down regulators designed for robust performance in demanding environments. It integrates internal switches and control logic to simplify power supply design. The device is categorized under PMIC solutions for efficient voltage regulation across various industrial and automotive sectors.
Replacement Considerations
Consult official substitution guides for compatible parts within the same product family. Verify pinout compatibility and electrical parameter alignment before implementing any alternative components.
