LT3663EDCB-5

Description：IC REG BUCK 5V 1.2A 8DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:7334bc7aba16 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK 5V 1.2A 8DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：7.5V
Voltage - Input (Max)：36V
Voltage - Output (Min/Fixed)：5V
Voltage - Output (Max)：-
Current - Output：1.2A
Frequency - Switching：1MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：8-WFDFN Exposed Pad
Supplier Device Package：8-DFN (2x3)
Grade：-
Qualification：-

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LT3663EDCB-5

Overview

The LT3663EDCB-5 is an automotive-grade, current-mode step-down switching regulator from Analog Devices. It operates with an input voltage range of 7.5V to 36V and provides a fixed 5V output at up to 1.2A. The device features a programmable output current limit that accurately controls system power dissipation and reduces the size of power path components. It utilizes a compact 8-pin DFN EP package and supports a switching frequency of 1MHz.

Feature Summary

Current-mode control architecture for stable regulation
Programmable output current limit for precise power management
Automotive qualification for reliable operation in harsh environments

Applications

Automotive infotainment systems
Telematics control units
Body electronics modules

Procurement Notes

Verify the specific suffix ED against official Analog Devices documentation to confirm automotive grade status and temperature range. Ensure the DCB-5 designation matches the required 5V fixed output and DFN-8 package configuration. Cross-reference the full ordering code with manufacturer datasheets to validate RoHS compliance and tape-and-reel specifications before procurement.

Selection Notes

Select this component when automotive reliability is required alongside a fixed 5V output. The integrated current limit simplifies thermal design by protecting downstream loads. Compare input voltage requirements against the 7.5V minimum threshold. Evaluate the 1.2A capacity against load demands to ensure adequate headroom for transient conditions.

Part Context

This part belongs to the LT3663 family of synchronous buck regulators designed for high-efficiency power conversion. The series includes variants with different output voltages and packages, such as the IMS8E and IDCB options. The LT3663EDCB-5 specifically targets automotive applications requiring robust performance within a small footprint.