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Product Detailed Parameters
- Description：IC REG BUCK ADJ 2.5A 16MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- 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#PBF is a synchronous step-down switching regulator manufactured by Analog Devices Inc., designed specifically for USB power delivery applications. It operates with an input voltage range of 3.6 V to 36 V and provides a fixed 5 V output capable of delivering up to 2.5 A. The device integrates a 40 mΩ high-side switch and a 15 mΩ low-side switch, enabling high efficiency across the load range. Key technical features include cable drop compensation to maintain accurate voltage at the load, adjustable switching frequency from 300 kHz to 2.2 MHz, and integrated soft-start functionality. It is housed in a thermally enhanced 16-lead MSOP package.
Feature Summary
- Integrated cable drop compensation ensures precise output voltage regulation at the remote load point despite line resistance.
- Synchronous buck architecture with integrated high-side and low-side power switches maximizes conversion efficiency.
- Adjustable switching frequency allows optimization for either size or performance requirements.
- Built-in soft-start limits inrush current during startup to prevent source voltage droop.
Applications
- USB-powered industrial equipment requiring stable 5V rails
- Battery-operated devices with wide input voltage ranges
- Point-of-load regulation for embedded systems
Procurement Notes
Verify the specific suffix and tape/reel or tube packaging configuration against the official datasheet before ordering. Confirm that the thermal pad connection matches your PCB layout requirements. Ensure compatibility with the required operating temperature range for your specific application environment.
Selection Notes
Select this component when a fixed 5V output is required for USB compliance or similar standards. It is suitable for designs needing cable drop compensation to maintain accuracy over long traces. Consider the maximum output current of 2.5A and the input voltage range up to 36V to ensure it meets system power constraints.
Part Context
This part belongs to the LT369x family of micropower synchronous buck regulators from Analog Devices. These devices are optimized for space-constrained applications requiring high efficiency and minimal external components. The MSOP package provides a compact footprint suitable for dense PCB layouts.
Replacement Considerations
Check for direct pin-compatible alternatives within the LT369x series if different output voltages or current ratings are needed. Verify thermal performance and switching frequency compatibility when substituting with other synchronous buck regulators from Analog Devices or competitors.
