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Product Detailed Parameters
- Description：IC REG BOOST ADJ 1.2A 8DFN
- 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)：2.2V
- Voltage - Input (Max)：16V
- Voltage - Output (Min/Fixed)：1.25V
- Voltage - Output (Max)：34V
- Current - Output：1.2A (Switch)
- Frequency - Switching：1.2MHz
- Synchronous Rectifier：No
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-WFDFN Exposed Pad
- Supplier Device Package：8-DFN (3x3)
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Overview
The LT3473EDD#PBF is a micro-power step-up DC/DC converter manufactured by Analog Devices Inc. It operates with an input voltage range of 3V to 4.2V and provides a fixed output voltage of 25V. The device supports an output current of up to 80mA. Key electrical specifications include a boost topology, an efficiency of 78%, and operation within a temperature range of -40°C to +125°C.
Feature Summary
- Integrates a Schottky diode for efficient power conversion
- Includes output disconnect circuitry for load isolation
- Features automatic burst mode to improve standby efficiency
Applications
- OLED bias power supplies
- Lithium-ion battery powered systems
- Micro-power portable electronics
Procurement Notes
Verify the specific suffix #PBF indicates lead-free (Pb-free) packaging compliant with RoHS standards. Confirm the DFN package type matches the target PCB footprint. Ensure the operating temperature range meets system requirements. Cross-reference the manufacturer part number with official Analog Devices documentation to confirm availability and revision status before finalizing procurement.
Selection Notes
Select this component when a compact solution is required to generate high voltage from a single-cell lithium-ion source. The integrated Schottky diode reduces external component count compared to discrete solutions. The automatic burst mode makes it suitable for applications requiring low quiescent current during idle periods to extend battery life.
Part Context
This part belongs to the LT3473 family of micro-power step-up converters designed for space-constrained applications. It is distinct from buck regulators or other topologies in the Analog Devices portfolio. The device is specifically engineered for driving loads such as OLED displays from low-voltage sources.
Replacement Considerations
Consult official Analog Devices documentation for verified substitute part numbers. Do not assume functional equivalence with other boost converters without verifying pinout, electrical parameters, and thermal characteristics.
