LT8640IUDC-1#PBF Price|Datasheet

LT8640IUDC-1#PBF

IC REG BUCK ADJ 5A 18QFN

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In Stock

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Shenzhen: 3468 pcs

Shanghai: 1281 pcs

Hong Kong: 9363 pcs

United States: 2429 pcs

The above prices and inventory are for reference only, please consult customer service for the latest quotation and inventory!

Specifications of LT8640IUDC-1#PBF

Part Number	LT8640IUDC-1#PBF
Date Code	2213
Quantity Available	16541 pcs
Manufacturer	Linear Technology/Analog Devices
Lead Time	Ship within 24 hours
QTY	1500
Datasheet	LT8640-1.pdf
Minimum Quantity	More than 50pcs
Distributor	SingSun
RoHS Status	Lead free / RoHS Compliant
Ship From	Hong Kong
Shipment Way	EMS/SF/DHL/TNT/UPS/FedEx
Country of Assembly	PHILIPPINES
Country of Diffusion	UNITED STATES
Lot Number	OZ48721.54
MSL	1
Packaging	Tube

Base Product Number	LT8640-1
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 ~ 125°C (TJ)
Mounting Type	Surface Mount
Package / Case	20-WFQFN, 18 Leads, Exposed Pad
Supplier Device Package	20-QFN (3x4)

LT8640IUDC-1#PBF Features

● Silent Switcher^® Architecture
○ Ultralow EMI Emissions
○ Spread Spectrum Frequency Modulation
● High Efficiency at High Frequency
○ Up to 96% Efficiency at 1MHz, 12V_IN to 5V_OUT
○ Up to 95% Efficiency at 2MHz, 12V_IN to 5V_OUT
● Wide Input Voltage Range: 3.4V to 42V
● 5A Maximum Continuous Output, 7A Peak Transient Output
● Ultralow Quiescent Current Burst Mode^® Operation
○ 2.5µA I_Q Regulating 12V_IN to 3.3V_OUT
○ Output Ripple < 10mV_P-P
● Fast Minimum Switch On-Time: 30ns
● Low Dropout Under All Conditions: 100mV at 1A
● Forced Continuous Mode (LT8640-1 Only)
● Safely Tolerates Inductor Saturation in Overload
● Adjustable and Synchronizable: 200kHz to 3MHz
● Peak Current Mode Operation
● Output Soft-Start and Tracking
● Small 18-Lead 3mm × 4mm QFN and Side Wettable QFN
● AEC-Q100 Qualified for Automotive Applications

LT8640IUDC-1#PBF Description

The LT8640-1 step-down regulator features Silent Switcher architecture designed to minimize EMI emissions while delivering high efficiency at frequencies up to 3MHz. An ultralow 2.5µA quiescent current—with the output in full regulation—enables applications requiring highest efficiency at very small load currents.

The LT8640-1 allows high V_IN to low V_OUT conversion at high frequency with a fast minimum top switch on-time of 30ns. The SYNC/MODE pin selects between Burst Mode operation, spread spectrum mode, synchronization to an external clock, and forced continuous mode (LT8640-1).

LT8640IUDC-1#PBF Tags

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