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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 LT3697IMSE#PBF is a 35V, 2.5A step-down switching regulator designed for USB applications. It features precise output voltage regulation and programmable cable drop compensation to maintain stable 5V outputs over long cables. The device operates with an input voltage range up to 35V and delivers up to 2.5A of output current. It utilizes a fixed 1.2MHz switching frequency and is housed in a 16-lead MSOP package with an exposed pad for thermal management.
Feature Summary
- Integrates programmable cable drop compensation to ensure accurate load voltage at the remote end of power transmission lines.
- Provides high-efficiency step-down conversion suitable for powering standard USB loads from higher voltage sources.
- Includes comprehensive protection mechanisms such as thermal shutdown and cycle-by-cycle current limiting.
Applications
- Powering 5V USB devices requiring stable voltage over extended cable lengths
- Industrial control systems utilizing USB interfaces
- Medical equipment with USB connectivity requirements
Procurement Notes
Verify the specific suffix #PBF indicates lead-free RoHS compliance when ordering. Confirm the MSOP-16 package availability matches your PCB footprint requirements. Check current supply status as distribution may vary by region. Ensure input voltage ratings align with your system's maximum source potential before integration.
Selection Notes
Select this component when cable resistance causes significant voltage drop issues in USB power delivery. Compare against standard buck regulators if cable compensation is unnecessary to reduce cost. Consider the 2.5A current limit for peak load demands. Evaluate thermal performance in enclosed enclosures due to the exposed pad design.
Part Context
This part belongs to Analog Devices' LT3697 family of USB-focused power management ICs. It complements other LT369x variants that offer different current ratings or input voltage ranges. The series targets applications where maintaining USB specification compliance under varying cable conditions is critical for system reliability.
Replacement Considerations
LT3697IMSE#TRPBF serves as the tape-and-reel replacement for the tube-packaged LT3697IMSE#PBF. Both share identical electrical specifications and pinouts. Verify packaging preference based on assembly line capabilities before substitution.
