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Product Detailed Parameters
- Description：IC REG BOOST ADJ 52QFN
- 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)：3.6V
- Voltage - Input (Max)：80V
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：80V
- Current - Output：-
- Frequency - Switching：100kHz ~ 1MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：52-WFQFN Exposed Pad
- Supplier Device Package：52-QFN (7x8)
- Grade：-
- Qualification：-
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Overview
The LT8551EUKG#PBF is a synchronous boost switching regulator IC manufactured by Analog Devices Inc. It features an adjustable output voltage with a maximum rating of 80V and accepts an input voltage range from 3.6V to 80V. The device operates within a switch frequency range of 100kHz to 1MHz and supports a single positive output configuration. It is housed in a 52-WFQFN package with an exposed pad, designed for surface mount installation. The component functions as a high-voltage step-up converter suitable for demanding power management applications.
Feature Summary
- Synchronous rectification architecture for improved efficiency
- Adjustable output voltage capability up to 80V
- Wide input voltage operating range supporting high-voltage sources
Applications
- High-voltage DC-DC conversion systems
- Industrial power supply designs
- Automotive electronics requiring step-up regulation
Procurement Notes
Verify the specific suffix UKG against official Analog Devices documentation to confirm pinout and thermal pad specifications. Ensure the ordering part number matches the exact package variant required for your PCB layout. Cross-reference the datasheet revision date to confirm compliance with current RoHS3 standards and material declarations before finalizing procurement orders.
Selection Notes
Select this component when designing circuits that require boosting voltages from a 3.6V minimum source to outputs approaching 80V. The wide input range accommodates various battery or rail configurations. Consider the 52-WFQN package size for thermal management requirements and ensure the selected switch frequency aligns with external inductor and capacitor selection guidelines provided in the technical data.
Part Context
This part belongs to the LT8551 family of high-voltage synchronous boost converters. The series is designed for applications needing reliable step-up regulation from moderate input levels to high output voltages. The EUKG suffix denotes a specific industrial temperature grade and package configuration within the broader LT8551 product line offered by Analog Devices.
Replacement Considerations
Consult official Analog Devices substitution guides for verified alternatives. Generic cross-references may not match the specific 80V rating or 52-pin QFN footprint. Verify compatibility with existing control loops and thermal dissipation capabilities before replacing.
