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LTC3854IDDB is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists Analog Devices Inc.. Its product description is IC POWER MANAGEMENT. Review the specifications below when checking this part for your BOM.
DC DC Switching Controllers specifications for LTC3854IDDB
- Description：IC POWER MANAGEMENT
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Type：Transistor Driver
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：4.5V ~ 38V
- Frequency - Switching：400kHz
- Duty Cycle (Max)：98%
- Synchronous Rectifier：Yes
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Enable, Soft Start
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：12-WFDFN Exposed Pad
- Supplier Device Package：12-DFN (3x2)
DC DC Switching Controllers datasheet and documents for LTC3854IDDB
DC DC Switching Controllers Overview
The LTC3854IDDB is a synchronous step-down DC/DC controller featuring a wide input voltage range of 4.5 V to 38 V and an adjustable output voltage from 800 mV to 5.5 V. It supports up to 25 A output current with a switching frequency of 400 kHz. The device operates within a temperature range of -40°C to +85°C, drawing 15 µA quiescent current and 2 mA during operation. Packaged in a DFN-10 surface-mount format, it offers precise load regulation of 0.1%.
DC DC Switching Controllers Feature Summary
- Integrates high-side and low-side gate drivers for synchronous buck topology
- Supports sub-milliohm DCR sensing for accurate current monitoring
- Includes programmable soft-start and tracking capabilities
DC DC Switching Controllers Applications
- Point-of-load regulation for processors and FPGAs
- Industrial automation power distribution
- Telecommunications infrastructure equipment
- Portable instrumentation systems
DC DC Switching Controllers Procurement Notes
Verify the specific suffix against official Analog Devices documentation to confirm temperature grade and packaging configuration. Ensure compatibility with existing board layouts regarding the DFN-10 footprint and thermal requirements. Cross-reference the datasheet revision to validate pinout and electrical characteristics before finalizing procurement orders.
DC DC Switching Controllers Selection Notes
Select this component when designing compact power supplies requiring wide input voltage tolerance and high efficiency. Consider the 400 kHz switching frequency for balancing component size and noise. Evaluate thermal performance under maximum load conditions due to the 25 A capability. Verify that the control loop compensation matches the target output voltage and load transient requirements.
DC DC Switching Controllers Part Context
This part belongs to the LTC3854 family of synchronous step-down controllers designed for applications demanding small form factors and wide operating ranges. It complements other Linear Technology power management solutions by providing robust control features without external sense resistors. The series targets high-density power conversion needs in industrial and commercial sectors.
DC DC Switching Controllers Replacement Considerations
Consult official manufacturer substitution guides for verified alternatives. Generic cross-references may not match the specific DCR sensing or tracking features.
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