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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 LT3695EMSE-3.3#TRPBF is a micropower step-down switching regulator manufactured by Analog Devices Inc., housed in a 16-lead MSOP package with exposed pad. This buck topology device delivers a fixed 3.3V output at up to 1A current capability. It operates within an input voltage range of 3.6V to 36V and features a low quiescent current of 35µA. The adjustable switching frequency spans from 250kHz to 2.2MHz, allowing for optimization of external component size versus efficiency. The unit supports operation across an extended temperature range from -40°C to +125°C.
Feature Summary
- Fault-tolerant architecture designed to withstand load dump conditions without damage
- Integrated synchronous rectification eliminates the need for an external catch diode
- Adjustable switching frequency enables trade-off between transient response and passive component size
- Micropower standby mode ensures minimal battery drain during shutdown periods
Applications
- Battery-powered portable instrumentation systems
- Automotive electronics requiring fault tolerance against load dumps
- Industrial control modules operating in harsh thermal environments
- Telecommunications infrastructure power distribution networks
Procurement Notes
Verify the specific suffix #TRPBF confirms tape-and-reel packaging rather than tube configuration when sourcing. Confirm the -3.3 designation matches the required fixed output voltage for the target circuit design. Check manufacturer documentation for RoHS compliance status and lead-free soldering recommendations. Ensure the MSOP-16 footprint matches the PCB layout constraints before finalizing procurement orders.
Selection Notes
Select this component when a compact solution is needed for high-voltage input conversion down to standard logic levels. The fixed 3.3V output simplifies design compared to adjustable variants. Consider the 1A limit for load requirements; higher currents may require parallel solutions or different family members. The wide input range accommodates various battery chemistries and automotive bus voltages directly.
Part Context
This part belongs to the LT3695 series of micropower buck regulators from Analog Devices. It shares architectural similarities with other parts in the family but differs in output configuration and packaging. The EMSE variant denotes the specific MSOP-16 package type, while the TRPBF suffix indicates the reel-based shipping format intended for automated surface-mount assembly processes.
Replacement Considerations
LT3695EMSE-5#PBF offers identical functionality with a 5V fixed output instead of 3.3V. LT3695IMSE-3.3#TRPBF provides the same electrical specifications in an SOIC-16 package rather than MSOP-16. Verify pinout compatibility and thermal performance differences when substituting between package types.
