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Product Detailed Parameters
- Description：IC REG BUCK 3.3V 1A 16MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：3.6V
- Voltage - Input (Max)：36V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Current - Output：1A
- Frequency - Switching：250kHz ~ 2.2MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°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 LT3695IMSE-3.3#TRPBF is a micropower step-down switching regulator manufactured by Analog Devices Inc., designed for high-voltage applications with fault tolerance. It operates within an input voltage range of 3.6 V to 36 V and provides a fixed 3.3 V output capable of delivering up to 1 A of continuous current. The device features a low quiescent current of 35 uA, ensuring efficient power management in standby modes. It supports adjustable switching frequencies from 250 kHz to 2.2 MHz, allowing optimization for size and performance. Packaged in a thermally enhanced MSOP-16 surface-mount package, it functions reliably across an extended temperature range of -40°C to +125°C.
Feature Summary
- Integrated fault-tolerant architecture protects against load dumps and short circuits during operation.
- Micropower design achieves ultra-low static current consumption for extended battery life.
- Wide input voltage capability accommodates various supply sources including automotive and industrial buses.
Applications
- Automotive infotainment and sensor node power distribution
- Industrial control systems requiring robust voltage regulation
- Portable equipment powered by single-cell lithium batteries
Procurement Notes
Verify the specific suffix #TRPBF confirms tape-and-reel packaging when sourcing components. Ensure compatibility with MSOP-16 footprint requirements on printed circuit boards. Confirm that the fixed 3.3 V output variant matches system voltage rails. Check manufacturer documentation for any recent product change notifications affecting pinout or thermal characteristics before finalizing procurement orders.
Selection Notes
Select this component when designing systems requiring high input voltage tolerance combined with low quiescent current. The fixed 3.3 V output eliminates external resistor networks, simplifying layout compared to adjustable variants. Consider the MSOP-16 package constraints for thermal dissipation if operating near maximum current limits. Evaluate switching frequency options to balance electromagnetic interference against passive component sizes.
Part Context
This part belongs to the LT3695 series of buck regulators from Analog Devices, characterized by high-voltage operation and fault protection. It complements other parts in the family like the LT3695IMSE-5#PBF, differing primarily in output voltage configuration and packaging format. The series targets applications needing reliable power conversion in electrically noisy environments.
Replacement Considerations
LT3695IMSE-5#PBF serves as a functional substitute within the same series, offering identical electrical characteristics except for a fixed 5 V output instead of 3.3 V. Designers must verify that downstream loads tolerate the higher voltage level before implementing this cross-reference.
