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Product Detailed Parameters
- Description：MULTIPHASE BOOST CONTROLLER
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Output Type：Transistor Driver
- Function：Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Boost, SEPIC
- Number of Outputs：1
- Output Phases：2
- Voltage - Supply (Vcc/Vdd)：3V ~ 40V
- Frequency - Switching：100kHz ~ 2MHz
- Duty Cycle (Max)：-
- Synchronous Rectifier：Yes
- Clock Sync：Yes
- Serial Interfaces：SPI
- Control Features：Enable, Frequency Control, Phase Control, Power Good, Pulse Skipping, Soft Start, Sync, Watchdog
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：20-WFQFN Exposed Pad
- Supplier Device Package：20-QFN (3x4)
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The LT8277RUDCM#WTRPBF is a multiphase boost controller manufactured by Analog Devices Inc. It operates with an input voltage range of 3 V to 40 V and supports output voltages from 9 V to 60 V. The device features a 2-phase interleaved architecture for efficient power conversion. It functions within a temperature range of -40 C to +150 C. The static current is specified at 2 mA, while the operating supply current is 15 uA. Switching frequencies are selectable at 100 kHz or 2 MHz. The component is housed in a QFN-20 package.
Feature Summary
- Supports multiphase boost and SEPIC topologies
- Features 2-phase interleaved operation for improved efficiency
- Includes shutdown capability for power management
Applications
- Multiphase Boost Controller applications
- DC DC Switch Controller implementations
- Power Management IC (PMIC) systems
Procurement Notes
Verify the specific ordering suffix and package variant against official Analog Devices documentation before procurement. Ensure compatibility with the required switching frequency configuration. Confirm that the QFN-20 package aligns with the target PCB footprint. Check for any regional distribution restrictions or lead time variations directly with authorized suppliers. Validate RoHS compliance status through the manufacturer's latest product information sheet.
Selection Notes
Select this component when a high-efficiency multiphase boost solution is required. The wide input voltage range suits various power sources. The low operating supply current aids in standby power conservation. Consider the thermal performance within the specified temperature range. Ensure the design accommodates the N-channel MOSFET drive requirements inherent to the controller architecture.
Part Context
This part belongs to the LT8277 series of switching voltage regulators. It is categorized under PMIC and DC DC switch controllers. The device is designed for constant frequency current mode control. It drives N-channel power MOSFETs for robust power stage operation. The series offers flexibility in switching frequency selection.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided source material.
