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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 LT8551IUKG#PBF is a synchronous boost switching regulator IC manufactured by Analog Devices Inc. It features an adjustable output voltage with a maximum of 80V and accepts an input voltage range from 3.6V to 80V. The device operates at a switchable frequency between 100kHz and 1MHz. It utilizes a 52-WFQFN package with an exposed pad, specifically the 52-QFN (7x8) configuration. The component supports positive output configuration and includes integrated synchronous rectification for improved efficiency.
Feature Summary
- Integrated synchronous rectification for enhanced conversion efficiency
- Adjustable output voltage capability up to 80V
- Flexible switching frequency selection ranging from 100kHz to 1MHz
- High input voltage tolerance supporting wide input ranges
Applications
- Industrial power supply systems requiring high voltage step-up
- Battery-powered equipment needing extended runtime through efficient boosting
- Automotive electronics utilizing high-voltage rail generation
- Telecommunications infrastructure power management modules
Procurement Notes
Verify the specific suffix #PBF indicates lead-free compliance and RoHS3 status before procurement. Confirm the 52-WFQFN package dimensions match the target PCB footprint. Ensure the operating temperature range of -40°C to 125°C aligns with the environmental requirements of the final assembly. Check current availability status as manufacturing schedules may vary.
Selection Notes
Select this component when a single-output boost topology is required with inputs up to 80V. The adjustable output feature allows customization for various load requirements. Consider the thermal performance of the exposed pad design for heat dissipation in high-current applications. Evaluate the switching frequency options to balance between component size and electromagnetic interference levels.
Part Context
This part belongs to the LT8551 family of high-voltage boost converters designed by Analog Devices Inc. It is categorized under DC-DC switching regulators within the PMIC segment. The device is distinct from buck or buck-boost variants due to its dedicated boost architecture. It serves as a solution for applications demanding reliable voltage elevation from lower source voltages.
Replacement Considerations
Consult official Analog Devices documentation for direct pin-compatible substitutes within the LT8551 series. Verify that any alternative part maintains the same 80V input/output ratings and 52-QFN package outline. Cross-reference electrical specifications to ensure equivalent switching frequency ranges and thermal characteristics.
