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LTC3856IUH#PBF is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists Analog Devices Inc.. Its product description is IC REG CTRLR BUCK 32WFQFN. Review the specifications below when checking this part for your BOM.
DC DC Switching Controllers specifications for LTC3856IUH#PBF
- Description：IC REG CTRLR BUCK 32WFQFN
- Series：PolyPhase®
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Type：Transistor Driver
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Number of Outputs：2
- Output Phases：2
- Voltage - Supply (Vcc/Vdd)：4.5V ~ 38V
- Frequency - Switching：250kHz ~ 770kHz
- Duty Cycle (Max)：94%
- Synchronous Rectifier：Yes
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：32-WFQFN Exposed Pad
- Supplier Device Package：32-QFN (5x5)
- Grade：-
- Qualification：-
DC DC Switching Controllers datasheet and documents for LTC3856IUH#PBF
DC DC Switching Controllers Overview
The LTC3856IUH#PBF is a two-phase synchronous step-down DC/DC controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4.5 V to 38 V and supports output voltages from 600 mV to 5 V. The device delivers up to 60 A of output current with a load regulation of 0.01%. It features a switchable frequency between 250 kHz and 770 kHz, a quiescent current of 40 uA, and operates within a temperature range of -40°C to +125°C. Packaged in a QFN-32 format, it includes shutdown functionality.
DC DC Switching Controllers Feature Summary
- Integrates a differential amplifier for true remote sensing of regulated supply terminals
- Supports phase-shifted operation to minimize RMS ripple currents
- Features OPTI-LOOP compensation for optimized transient response across varying capacitance
DC DC Switching Controllers Applications
- High-current distributed power architectures
- Industrial equipment power supplies
- Telecommunications infrastructure
DC DC Switching Controllers Procurement Notes
Verify the specific suffix #PBF indicates lead-free packaging compliance. Confirm the QFN-32 package dimensions match the design footprint. Ensure the operating temperature range aligns with environmental requirements. Validate that the differential amplifier configuration suits the remote sensing layout.
DC DC Switching Controllers Selection Notes
Select this component when high output current capability near 60 A is required alongside precise voltage regulation. Consider the wide input voltage range for flexible bus compatibility. Evaluate the adjustable switching frequency to balance efficiency against EMI constraints. Verify thermal management capabilities for the QFN-32 package under maximum load conditions.
DC DC Switching Controllers Part Context
This part belongs to the LTC3856 series of PolyPhase controllers designed for sub-milliohm DCR sensing applications. It utilizes current mode control architecture to drive external N-channel MOSFET stages. The series emphasizes high efficiency and simplified thermal design through multi-phase techniques.
DC DC Switching Controllers Replacement Considerations
LTC3856EUH#PBF offers similar functionality with potentially different temperature or speed grades.
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