ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG BUCK ADJ 5A 20QFN
- Series：Silent Switcher®1
- 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)：3.4V
- Voltage - Input (Max)：42V
- Voltage - Output (Min/Fixed)：0.97V
- Voltage - Output (Max)：42V
- Current - Output：5A
- Frequency - Switching：210kHz ~ 2MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：20-WFQFN, 18 Leads, Exposed Pad
- Supplier Device Package：20-QFN (3x4)
- Grade：-
- Qualification：-
Download product information
Overview
The LT8640HUDC-1#TRPBF is a synchronous step-down Silent Switcher regulator from Analog Devices, housed in an 18-lead QFN package. It supports input voltages from 3.4 V to 42 V and delivers up to 5 A of output current. The adjustable output voltage ranges from 970 mV to 41.58 V. Operating frequencies span 200 kHz to 3 MHz, with a quiescent current of 300 uA. The device functions within a temperature range of -40°C to +150°C junction temperature.
Feature Summary
- Integrates Silent Switcher architecture for minimized radiated electromagnetic interference without external shielding requirements.
- Features synchronous buck topology with integrated high-side and low-side power switches for efficient power conversion.
- Includes programmable switching frequency allowing optimization between efficiency and component size.
Applications
- Industrial equipment power distribution
- Telecommunications infrastructure systems
- Automotive electronics applications
Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the HUDC-1 designation matches required thermal and electrical specifications against official datasheets. Ensure compatibility with intended PCB footprint and soldering profiles during procurement planning.
Selection Notes
Select this component for designs requiring high input voltage tolerance up to 42 V and significant current capability. Consider the wide operating temperature range for harsh environments. Evaluate the trade-off between switching frequency selection and passive component sizes based on space constraints.
Part Context
This part belongs to the LT8640 family of Silent Switcher regulators. It shares core architectural features with other variants in the series but differs in package type and specific operational ratings. The family targets high-efficiency DC-DC conversion needs across industrial and automotive sectors.
Replacement Considerations
LT8640IUDC#TRPBF offers similar functionality with potentially different thermal or electrical characteristics. LT8640JUDCF#WTRPBF provides automotive-grade qualification. Verify pinout and parameter alignment before substitution.
