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Product Detailed Parameters
- Description：MULTIPHASE BOOST CONTROLLER
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tray
- 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#WPBF is a multiphase boost controller from Analog Devices, designed for high-efficiency DC/DC conversion. 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 interleaved two-phase operation to reduce input ripple and improve thermal performance. It supports switching frequencies of 100 kHz and 2 MHz, with a quiescent current of 15 uA and a static current of 2 mA. Operating temperature ranges from -40 C to +150 C, housed in a QFN-20 package.
Feature Summary
- Multiphase interleaved boost control architecture
- Internal PWM dimming capability for LED applications
- Wide input voltage range supporting low-voltage sources
- High operating junction temperature rating
Applications
- LED driver systems requiring internal PWM dimming
- Industrial power supply modules
- Battery-powered equipment with wide input requirements
- Telecommunications infrastructure power management
Procurement Notes
Verify component authenticity through authorized Analog Devices distributors or certified partners. Check for restricted supply status as indicated by manufacturer notifications. Ensure packaging integrity matches the specified reel format. Confirm RoHS compliance documentation aligns with regional regulatory requirements. Validate part marking against official datasheet specifications before integration.
Selection Notes
Select this controller for applications requiring high efficiency at low input voltages. Consider the 20-WFQFN exposed pad package for thermal dissipation needs. Evaluate the 100 kHz and 2 MHz frequency options based on passive component size constraints. Ensure the design accommodates the 3 V to 40 V input range and up to 60 V output capability. Verify compatibility with N-channel MOSFET drivers for optimal performance.
Part Context
Part of the LT8277 series, this component serves as a specialized power management IC within Analog Devices' portfolio. It addresses the need for compact, high-performance boost converters in space-constrained environments. The series emphasizes reliability and thermal stability for industrial and automotive-grade applications.
Replacement Considerations
LT8277RUDCM#WTRPBF
FAQ
What is the maximum output voltage supported by the LT8277?
The controller supports output voltages ranging from 9 V to 60 V.
Does the LT8277 support PWM dimming?
Yes, it includes internal PWM dimming functionality suitable for LED driver applications.
