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Product Detailed Parameters
- Description：IC REG BUCK ADJ 3.5A 10DFN
- 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)：3.6V
- Voltage - Input (Max)：25V
- Voltage - Output (Min/Fixed)：0.79V
- Voltage - Output (Max)：24.25V
- Current - Output：3.5A
- Frequency - Switching：230kHz ~ 2.45MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：10-WFDFN Exposed Pad
- Supplier Device Package：10-DFN (3x3)
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Overview
The LT1913IDD#PBF is a synchronous step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.6V to 25V and provides an adjustable output voltage from 0.79V to 24.25V. The device delivers a continuous output current of 3.5A. It features a programmable switching frequency ranging from 230kHz to 2.45MHz. The component is housed in a compact 10-WFDFN package with exposed pad, measuring 3mm x 3mm. It supports operation over a junction temperature range of -40°C to +125°C.
Feature Summary
- Integrated synchronous rectification for high efficiency across load ranges
- Programmable switching frequency allows optimization for size or performance
- Compact 3mm x 3mm DFN package minimizes board space requirements
Applications
- Industrial point-of-load regulation
- Embedded systems power distribution
- Telecommunications equipment power supplies
Procurement Notes
Verify the specific suffix IDD against the official datasheet to confirm the industrial temperature grade (-40°C to +125°C). Ensure the ordering part number matches the exact package variant required for your PCB footprint. Cross-reference the manufacturer's latest documentation for any updates regarding pinout or electrical characteristics before finalizing procurement.
Selection Notes
Select this component when a high-current buck converter is needed in a small form factor. The wide input voltage range suits various bus voltages. Consider the thermal performance of the exposed pad design for heat dissipation. Verify that the external components selected support the chosen switching frequency and output current requirements for stable operation.
Part Context
This part belongs to the LT1913 family of synchronous buck regulators. It shares core topology with other members but differs in temperature rating and packaging. The IDD suffix specifically denotes the industrial temperature range variant. It is designed for applications requiring efficient DC-DC conversion in space-constrained environments.
Replacement Considerations
LT1913EDD#PBF: Same electrical specifications but limited to commercial temperature range (0°C to 70°C). Verify thermal requirements before substitution.
