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Product Detailed Parameters
- Description：IC REG BOOST ADJ 350MA 16QFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Up
- Output Configuration：Positive
- Topology：Boost
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.7V
- Voltage - Input (Max)：12V
- Voltage - Output (Min/Fixed)：1.248V
- Voltage - Output (Max)：65V (Switch)
- Current - Output：350mA (Switch)
- Frequency - Switching：1MHz ~ 2MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-WFQFN Exposed Pad
- Supplier Device Package：16-QFN (3x3)
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Overview
The LT3905EUD#PBF is a boost switching regulator IC manufactured by Analog Devices Inc. It features an adjustable output voltage range starting from 1.248V, with a maximum switch voltage rating of 65V. The device provides a continuous switch current capability of 350mA and operates within a switching frequency range of 1MHz to 2MHz. It accepts an input voltage between 2.7V and 12V. The component is housed in a 16-WFQFN package with exposed pad and supports operation at temperatures from -40°C to 125°C.
Feature Summary
- Integrated synchronous boost topology for high efficiency
- Adjustable output voltage control via external feedback
- Wide input voltage range supporting various power sources
- High operating junction temperature rating for industrial environments
Applications
- Battery-powered portable equipment requiring voltage step-up
- Industrial sensor nodes needing stable supply from single-cell sources
- Automotive electronics operating under variable battery conditions
- LED driver circuits requiring constant current boost regulation
Procurement Notes
Verify the specific suffix 'EUD' against official Analog Devices documentation to confirm temperature grade and packaging details. Ensure RoHS compliance matches project requirements. Cross-reference the manufacturer part number LT3905EUD#PBF with the latest datasheet revision to validate pinout and electrical specifications before integration.
Selection Notes
Select this component when a compact boost solution is required for inputs up to 12V. The 350mA switch current limits suitability for higher power loads. Consider the 16-QFN package size for PCB layout constraints. Verify that the 1MHz-2MHz frequency range aligns with EMI requirements and inductor selection capabilities for the target application.
Part Context
This part belongs to the LT3905 family of high-efficiency synchronous boost regulators. The series is designed for space-constrained applications requiring reliable voltage conversion from low-voltage sources. Analog Devices integrates the controller and power switches into a single monolithic chip to minimize external component count and board area.
Replacement Considerations
Check Analog Devices documentation for direct pin-to-pin replacements within the LT3905 family. Verify if alternative packages like the IUD variant offer different thermal or electrical characteristics while maintaining functional compatibility.
