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Product Detailed Parameters
- Description：IC REG BUCK ADJ 10A 28LQFN
- Series：Silent Switcher®2
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.6V
- Voltage - Input (Max)：42V
- Voltage - Output (Min/Fixed)：0.6V
- Voltage - Output (Max)：42V
- Current - Output：10A
- Frequency - Switching：200kHz ~ 3MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：28-TFQFN Exposed Pad
- Supplier Device Package：28-LQFN (5x4)
- Grade：-
- Qualification：-
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Overview
The LT8638SJV#TRMPBF is a synchronous buck Silent Switcher from Analog Devices, housed in an LQFN-28 package. It supports an input voltage range of 2.8 V to 42 V and delivers up to 10 A output current. The device features a programmable switching frequency between 200 kHz and 3 MHz and operates within a temperature range of -40°C to +150°C junction temperature. Quiescent current is specified at 9 uA.
Feature Summary
- Integrates Silent Switcher technology to minimize electromagnetic interference radiation without requiring external filters.
- Provides high-efficiency synchronous rectification for robust power delivery in compact designs.
- Features adjustable switching frequency to optimize performance across various load conditions.
Applications
- Industrial automation systems
- Distributed power architectures
- Telecommunications infrastructure
Procurement Notes
Verify the specific suffix against official documentation to confirm packaging format and tape-and-reel specifications. Confirm RoHS compliance status and moisture sensitivity level prior to procurement. Ensure the ordering part number matches the required thermal and electrical characteristics for the target application environment.
Selection Notes
Select this component when a wide input voltage range up to 42 V and high current capability are required. The integrated EMI reduction simplifies layout constraints compared to standard converters. Evaluate the thermal performance requirements given the high current density and operating temperature limits.
Part Context
This part belongs to the LT8638 series of Silent Switcher regulators. It is designed for applications demanding high efficiency and low noise in space-constrained environments. The LQFN-28 package facilitates efficient heat dissipation while maintaining a small footprint.
Replacement Considerations
Consult official substitution guides for compatible alternatives within the LT8638 family or other Analog Devices synchronous buck regulators with similar electrical specifications and pinout configurations.
