Specification	LT8645SHV-2#PBF

Current - Output	8 A
Frequency - Switching [Max]	2.2 MHz
Frequency - Switching [Min]	200 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	32-TFQFN Exposed Pad
Supplier Device Package	32-LQFN (6x4)
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	65 V
Voltage - Input (Min) [Min]	3.4 V
Voltage - Output (Max) [Max]	65 V
Voltage - Output (Min/Fixed) [Min]	0.97 V

LT8645S-2 Series

65V, 8A Synchronous Step-Down Silent Switcher with 2.5µA Quiescent Current

Part	Function	Voltage - Output (Max) [Max]	Voltage - Output (Min/Fixed) [Min]	Number of Outputs	Current - Output	Voltage - Input (Max) [Max]	Package / Case	Frequency - Switching [Min]	Frequency - Switching [Max]	Mounting Type	Topology	Output Type	Output Configuration	Voltage - Input (Min) [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Supplier Device Package
Analog Devices Inc./Maxim Integrated LT8645SHV-2#PBF	Step-Down	65 V	0.97 V	1	8 A	65 V	32-TFQFN Exposed Pad	200 kHz	2.2 MHz	Surface Mount	Buck	Adjustable	Positive	3.4 V	-40 °C	150 °C	32-LQFN (6x4)
Analog Devices Inc./Maxim Integrated LT8645SJV-2#PBF	Step-Down	65 V	0.97 V	1	8 A	65 V	32-TFQFN Exposed Pad	200 kHz	2.2 MHz	Surface Mount	Buck	Adjustable	Positive	3.4 V	-40 °C	150 °C	32-LQFN (6x4)
Analog Devices Inc./Maxim Integrated LT8645SEV-2#PBF	Step-Down	65 V	0.97 V	1	8 A	65 V	32-TFQFN Exposed Pad	200 kHz	2.2 MHz	Surface Mount	Buck	Adjustable	Positive	3.4 V	-40 C	125 °C	32-LQFN (6x4)

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$	Updated

Digikey	N/A	328	$ 16.29	1m+

Description

General part information

LT8645S-2 Series

The LT8645S-2 synchronous step-down regulator features Silent Switcher architecture designed to minimize EMI emissions while delivering high efficiency at high switching frequencies. This performance makes the LT8645S-2 ideal for noise sensitive applications and environments.The fast, clean, low-overshoot switching edges enable high efficiency operation even at high switching frequencies, leading to a small overall solution size. Peak current mode control with a 40ns minimum on-time allows high step-down ratios even at high switching frequencies.Burst Mode®operation enables ultralow standby current consumption, pulse-skipping mode allows full switching frequency at lower output loads, or spread spectrum operation can further reduce EMI emissions.ApplicationsAutomotive and Industrial SuppliesGeneral Purpose Step-DownGSM Power Supplies

Documents

Technical documentation and resources

LT8645SHV-2#PBF | Datasheet

Datasheet

Package Drawing - 32-Lead LQFN (6mm x 4mm x 0.94mm w/ EP)

Package Drawing