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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)：5V
- Voltage - Input (Max)：35V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：6.1V
- Current - Output：2.5A
- Frequency - Switching：300kHz ~ 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 LT3697EMSE#TRPBF is a synchronous step-down switching regulator manufactured by Analog Devices Inc. in a 16-pin MSOP package with an exposed pad. It accepts input voltages from 5V to 35V and provides a single adjustable output ranging from 0.5V to 6.1V at up to 2.5A. The device operates with a fixed internal frequency of 250kHz or allows synchronization up to 2.2MHz. Quiescent current is typically 75µA, and it functions within a temperature range of -40°C to +125°C.
Feature Summary
- Integrated synchronous buck topology for high efficiency
- Programmable cable drop compensation to maintain accurate load regulation
- Adjustable output voltage capability via external resistors
- Built-in programmable output current limit protection
Applications
- USB 5V power distribution systems requiring 2.5A output
- Industrial control boards with wide input voltage ranges
- Point-of-load regulation for embedded processors
- Battery-powered equipment with varying supply levels
Procurement Notes
Verify the exact suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the specific thermal performance requirements match the MSOP-16 EP package capabilities. Ensure the design accounts for the maximum input voltage of 35V to prevent device damage. Check for updated datasheet revisions regarding electrical characteristics before finalizing the bill of materials.
Selection Notes
Select this component when a compact solution is needed for converting higher bus voltages down to standard logic levels like 5V. It is suitable for designs requiring precise output regulation despite input line variations. Consider the thermal dissipation limits of the MSOP package under full load conditions. Evaluate the need for cable drop compensation if long traces are used between the regulator and the load.
Part Context
This part belongs to the LT369x family of micropower step-down regulators designed for fault-tolerant applications. It shares architectural similarities with other models in the series but offers higher output current capability compared to the 1A variants. The device integrates the switch and control circuitry into a small footprint to save board space.
Replacement Considerations
LT3697IMSE#TRPBF is a verified industrial grade equivalent with identical pinout and specifications. LT3697EMSE#PBF is the tube-packaged version of the same functional device. Cross-reference with LT3695 series parts only if lower current requirements allow for significant cost reduction.
