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Product Detailed Parameters
- Description：IC REG BUCK 5V 1.2A 8DFN
- Series：*
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：-
- Output Configuration：-
- Topology：-
- Output Type：-
- Number of Outputs：-
- Voltage - Input (Min)：-
- Voltage - Input (Max)：-
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Current - Output：-
- Frequency - Switching：-
- Synchronous Rectifier：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The LT3663EDCB-5#TRPBF is a current mode step-down switching regulator from Analog Devices, designed for automotive and industrial applications. It operates with an input voltage range of 7.5 V to 36 V and provides a fixed output voltage of 2.5 V. The device supports a maximum output current of 1.2 A and integrates a programmable output current limit. This feature allows for precise control of system power dissipation and enables the reduction of power path component sizes. The unit is housed in an 8-pin DFN EP package.
Feature Summary
- Integrates a programmable output current limit to accurately manage system power dissipation
- Utilizes current mode control architecture for stable step-down regulation
- Designed to reduce the physical size of external power path components through precise current limiting
Applications
- Automotive electronic systems requiring robust DC-DC conversion
- Industrial equipment power distribution networks
- Embedded systems utilizing 2.5 V logic or sensor rails
Procurement Notes
Verify the specific suffix #TRPBF against official Analog Devices documentation to confirm tape-and-reel packaging and lead-free status. Ensure the part number matches the exact electrical specifications required for the target application, particularly the fixed 2.5 V output and 1.2 A current rating. Cross-reference the 8-pin DFN EP package dimensions with PCB layout guidelines provided in the datasheet to ensure mechanical compatibility.
Selection Notes
Select this component when a fixed 2.5 V output is required from a wide 7.5 V to 36 V input range. The integrated programmable current limit makes it suitable for designs where thermal management and component size optimization are critical. Consider the automotive qualification if operating in harsh environments. Verify that the 1.2 A output current meets the load requirements without exceeding the device's thermal limits under expected ambient conditions.
Part Context
This part belongs to the LT3663 family of high-efficiency buck regulators. Similar variants include the LT3663IDCB-3.3, which offers a 3.3 V output, and other models within the series that may differ in output voltage or package type. The family shares common features such as current mode control and programmable current limiting, providing designers with flexible options for various voltage rail requirements in compact form factors.
Replacement Considerations
Direct substitutes within the same family include parts with different fixed output voltages, such as the LT3663IDCB-3.3 for 3.3 V applications. Ensure any replacement maintains the 7.5 V to 36 V input range and 1.2 A output capability. Verify pinout compatibility and thermal performance characteristics before substitution.
