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Product Detailed Parameters
- Description：IC REG BUCK ADJ 2A 10MSOP
- 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)：3.6V
- Voltage - Input (Max)：34V
- Voltage - Output (Min/Fixed)：1.265V
- Voltage - Output (Max)：20V
- Current - Output：2A
- Frequency - Switching：300kHz ~ 2.8MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Supplier Device Package：10-MSOP-EP
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Overview
The LT3481HMSE#TRPBF is a micropower step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.6 V to 36 V and delivers up to 2 A of output current. The device integrates a 2.8 MHz fixed-frequency switch, enabling the use of small external components. It features a low quiescent current of 50 µA and supports adjustable output voltages from 1.265 V to 20 V. Packaged in a 10-lead MSOP, it includes thermal shutdown and cycle-by-cycle current limiting for robust operation.
Feature Summary
- Integrates a high-efficiency synchronous buck converter with a 2.8 MHz fixed switching frequency
- Supports wide 3.6 V to 36 V input voltage range for versatile power supply applications
- Provides adjustable output voltage capability ranging from 1.265 V to 20 V
- Includes comprehensive protection mechanisms such as thermal shutdown and cycle-by-cycle current limiting
Applications
- Portable battery-powered equipment requiring efficient voltage regulation
- Industrial control systems utilizing wide input voltage ranges
- Automotive electronics operating within specified temperature and voltage limits
- Embedded systems needing compact DC-DC conversion solutions
Procurement Notes
Verify the exact suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm the H-grade designation matches required temperature specifications. Ensure compatibility with MSOP-10 footprint during PCB layout. Cross-reference datasheet revision dates for updated electrical characteristics. Validate supplier authenticity through authorized Analog Devices distribution channels.
Selection Notes
Select this component when a wide input voltage range and moderate output current are required. Consider the 2.8 MHz frequency for balancing efficiency and component size. Evaluate thermal performance under maximum load conditions. Compare quiescent current requirements against system standby needs. Verify output voltage adjustability meets specific design targets.
Part Context
This part belongs to the LT3481 family of micropower step-down regulators. It shares architectural similarities with other Linear Technology buck converters but offers specific pinout and performance characteristics. The MSOP package provides a compact solution for space-constrained designs. Related parts may include variants with different frequencies or output configurations.
Replacement Considerations
LT3481HDD#TRPBF serves as a direct pin-compatible alternative in DFN packaging. LT3481HMSE#PBF offers the same functionality in tube packaging instead of reel. Verify thermal dissipation differences between MSOP and DFN packages when substituting.
