Specification	LT8608SEV#TRMPBF

Current - Output	1.5 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]	125 °C
Operating Temperature [Min]	-40 C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	12-VFQFN Exposed Pad
Supplier Device Package	12-LQFN (2x3)
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	42 V
Voltage - Input (Min) [Min]	2.5 V
Voltage - Output (Max) [Max]	42 V
Voltage - Output (Min/Fixed)	0.77 V

LT8608 Series

Part	Output Configuration	Frequency - Switching [Min]	Frequency - Switching [Max]	Number of Outputs	Mounting Type	Output Type	Topology	Voltage - Input (Min) [Min]	Function	Package / Case	Current - Output	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Voltage - Output (Max) [Max]	Supplier Device Package	Outputs and Type	Outputs and Type	Supplied Contents	Board Type	Regulator Topology	Main Purpose	Contents	Frequency - Switching	Voltage - Output	Voltage - Input [Min]	Voltage - Input [Max]	Utilized IC / Part
Analog Devices Inc./Maxim Integrated LT8608SEV#TRPBF	Positive	200 kHz	2.2 MHz	1	Surface Mount	Adjustable	Buck	2.5 V	Step-Down	12-VFQFN Exposed Pad	1.5 A	-40 C	125 °C	42 V	0.77 V	42 V	12-LQFN (2x3)
Analog Devices Inc./Maxim Integrated LT8608SIV#TRMPBF	Positive	200 kHz	2.2 MHz	1	Surface Mount	Adjustable	Buck	2.5 V	Step-Down	12-VFQFN Exposed Pad	1.5 A	-40 C	125 °C	42 V	0.77 V	42 V	12-LQFN (2x3)
Analog Devices Inc./Maxim Integrated LT8608SEV#TRMPBF	Positive	200 kHz	2.2 MHz	1	Surface Mount	Adjustable	Buck	2.5 V	Step-Down	12-VFQFN Exposed Pad	1.5 A	-40 C	125 °C	42 V	0.77 V	42 V	12-LQFN (2x3)
Analog Devices Inc./Maxim Integrated DC2711A											1.5 A							1	1 Non-Isolated Output Non-Isolated	Board(s)	Fully Populated	Buck	DC/DC Step Down	Board(s)	2 MHz	5 V	5.5 V	42 V	LT8608S
Analog Devices Inc./Maxim Integrated LT8608EMSE	Positive	200 kHz	2 MHz	1	Surface Mount	Adjustable	Buck	3 V	Step-Down	10-MSOP 10-TFSOP Exposed Pad	1.5 A	-40 C	125 °C	42 V	0.778 V	42 V	10-MSOP-EP
Analog Devices Inc./Maxim Integrated LT8608SIV#TRPBF	Positive	200 kHz	2.2 MHz	1	Surface Mount	Adjustable	Buck	2.5 V	Step-Down	12-VFQFN Exposed Pad	1.5 A	-40 C	125 °C	42 V	0.77 V	42 V	12-LQFN (2x3)

Pricing

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

Distributor	Package	Quantity	$	Updated

Digikey	Cut Tape (CT)	1	$ 9.28	1m+
		10	$ 6.42
		25	$ 5.68
		100	$ 4.85
		250	$ 4.45
	Digi-Reel®	1	$ 9.28	1m+
		10	$ 6.42
		25	$ 5.68
		100	$ 4.85
		250	$ 4.45
	N/A	732	$ 8.88	1m+
	Tape & Reel (TR)	500	$ 4.21	1m+
		1000	$ 4.01
		1500	$ 3.90
		2500	$ 3.90

Description

General part information

LT8608 Series

The LT8608S is a compact, high efficiency, high speed synchronous monolithic step-down switching regulator that consumes only 1.7μA of quiescent current. The LT8608S can deliver 1.5A of continuous current. Top and bottom power switches are included with all necessary circuitry to minimize the need for external components. Low ripple Burst Mode operation enables high efficiency down to very low output currents while keeping the output ripple below 10mV. A SYNC pin allows synchronization to an external clock, or spread spectrum modulation of switching frequencies for low EMI operation. Internal compensation with peak current mode topology allows the use of small inductors and results in fast transient response and good loop stability. The EN/UV pin has an accurate 1V threshold and can be used to program VINundervoltage lockout or to shut down the LT8608S reducing the input supply current to 1μA. A capacitor on the TR/SS pin programs the output voltage ramp rate during start-up while the PG flag signals when VOUTis within ±8.0% of the programmed output voltage as well as fault conditions. The LT8608S is available in a small 12-lead LQFN package.APPLICATIONSGeneral Purpose Step DownLow EMI Step Down

Documents

Technical documentation and resources

Package Drawing - 12-Lead (2mm × 3mm × 0.74mm)

Package Drawing

DC2711A - Demo Manual (Rev.0)

User Guide

LT8608S: 42V, 1.5A Synchronous Step-Down Regulator with 3μA Quiescent Current Data Sheet (Rev.0)

Data Sheet