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Product Detailed Parameters
- Description：IC REG BUCK ADJ 2.5A 24QFN
- 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)：3.4V
- Voltage - Input (Max)：42V
- Voltage - Output (Min/Fixed)：0.97V
- Voltage - Output (Max)：40V
- Current - Output：2.5A
- Frequency - Switching：200kHz ~ 2.2MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：24-WFQFN Exposed Pad
- Supplier Device Package：24-QFN (3x5)
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Overview
The LT8611EUDD#TRPBF is a synchronous step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.4 V to 42 V and delivers up to 2.5 A of output current. The device supports adjustable output voltages from 970 mV to 40 V. It features a programmable switching frequency between 200 kHz and 2.2 MHz, enabling high efficiency and reduced solution size. The IC includes a low quiescent current of 2.5 uA and integrates current sense functionality for precise regulation.
Feature Summary
- Integrates synchronous buck topology with internal power switches for high efficiency conversion
- Supports external current sensing to minimize component count and improve accuracy
- Features wide input voltage capability suitable for various industrial supply rails
- Includes shutdown mode for extended battery life in portable applications
Applications
- Industrial automation controllers
- Point-of-load voltage regulation
- Battery-powered equipment power management
Procurement Notes
Verify the specific suffix TRPBF indicates tape and reel packaging when ordering. Confirm the EUDD package variant matches your PCB footprint requirements. Ensure compatibility with the intended switching frequency settings. Check RoHS compliance documentation for regulatory adherence. Validate thermal performance under maximum load conditions.
Selection Notes
Select this component for designs requiring a wide input voltage range up to 42 V. Consider the 2.5 A output capacity for moderate power applications. Evaluate the 2.2 MHz maximum frequency for smaller passive component selection. Review the 970 mV minimum output voltage for low-voltage logic supplies. Assess the QFN-24 package for thermal dissipation needs.
Part Context
This part belongs to the LT8611 series of micropower synchronous buck regulators. It is designed for applications demanding high efficiency and small footprint. The series supports flexible configuration through external components. It targets industrial and consumer electronics markets requiring reliable DC-DC conversion.
Replacement Considerations
LT8611EUDD#PBF is the tube-packaged equivalent of the same electrical specification.
