Voltage Regulators - Switching Regulators

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LTC3638 & LTC3639 Step-Down Regulators

Analog Devices Inc. LTC3638 and LTC3639 High-Efficiency Step-Down Regulators maintain a regulated output voltage at no load with an internal power switch at only 12μA typical DC supply current. The LTC3638 and LTC3639 incorporate low quiescent current, integrated power switch, Burst Mode^® operation, and programmable peak current limit creating high efficiency over a broad range of load currents. A programmable peak current limit creates a simple method for optimizing efficiency and for reducing output ripple and component size.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package / Case	Topology	Output Voltage	Output Current	Number of Outputs	Quiescent Current	Switching Frequency	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
Switching Voltage Regulators Hi Eff, 150V 100mA Sync Buck Reg LTC3639HMSE#PBF Analog Devices 1: $14.87 472In Stock	Mfr. Part # LTC3639HMSE#PBF Mouser Part # 584-LTC3639HMSE#PBF	Analog Devices	Switching Voltage Regulators Hi Eff, 150V 100mA Sync Buck Reg Learn More about Analog Devices adi ltc3638 ltc3639 regulators	Datasheet	472In Stock	$14.87 $11.64 $10.84 $9.94 $9.85	Min.: 1 Mult.: 1 Max.: 377	SMD/SMT	MSOP-16-12	Buck	800 mV to 150 V	100 mA	1 Output	12 uA	200 kHz	- 40 C	+ 150 C	LTC3639	Tube
Switching Voltage Regulators Hi Eff, 150V 100mA Sync Buck Reg LTC3639MPMSE#TRPBF Analog Devices 1: $33.72 925In Stock	Mfr. Part # LTC3639MPMSE#TRPBF Mouser Part # 584-C3639MPMSETRPBF	Analog Devices	Switching Voltage Regulators Hi Eff, 150V 100mA Sync Buck Reg Learn More about Analog Devices adi ltc3638 ltc3639 regulators	Datasheet	925In Stock	Cut Tape $33.72 $26.95 $25.27 $23.42 View $22.53 $22.30 $22.30 MouseReel Available	Min.: 1 Mult.: 1 Max.: 740	SMD/SMT	MSOP-16-12	Buck	800 mV to 150 V	100 mA	1 Output	12 uA	200 kHz	- 55 C	+ 150 C	LTC3639	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Hi Eff, 140V 250mA Buck Reg LTC3638EMSE#PBF Analog Devices 1: $12.14 1,494In Stock	Mfr. Part # LTC3638EMSE#PBF Mouser Part # 584-LTC3638EMSE#PBF	Analog Devices	Switching Voltage Regulators Hi Eff, 140V 250mA Buck Reg Learn More about Analog Devices adi ltc3638 ltc3639 regulators	Datasheet	1,494In Stock	$12.14 $9.51 $8.68 $8.13 View $7.83 $7.60 $7.45	Min.: 1 Mult.: 1 Max.: 1,195	SMD/SMT	MSOP-16-12	Buck	800 mV to 140 V	250 mA	1 Output	12 uA	Adjustable	- 40 C	+ 125 C	LTC3638	Tube
Switching Voltage Regulators Hi Eff, 150V 100mA Sync Buck Reg LTC3639EMSE#TRPBF Analog Devices 1: $12.79 2,878In Stock	Mfr. Part # LTC3639EMSE#TRPBF Mouser Part # 584-LTC3639EMSETRPBF	Analog Devices	Switching Voltage Regulators Hi Eff, 150V 100mA Sync Buck Reg Learn More about Analog Devices adi ltc3638 ltc3639 regulators	Datasheet	2,878In Stock	Cut Tape $12.79 $10.01 $9.32 $8.56 View Reel $8.45 $8.48 $8.45 $8.45 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2,318 : 2,500	SMD/SMT	MSOP-16-12	Buck	800 mV to 150 V	100 mA	1 Output	12 uA	200 kHz	- 40 C	+ 125 C	LTC3639	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Hi Eff, 150V 100mA Sync Buck Reg LTC3639HMSE#TRPBF Analog Devices 1: $14.87 2,151In Stock	Mfr. Part # LTC3639HMSE#TRPBF Mouser Part # 584-LTC3639HMSETRPBF	Analog Devices	Switching Voltage Regulators Hi Eff, 150V 100mA Sync Buck Reg Learn More about Analog Devices adi ltc3638 ltc3639 regulators	Datasheet	2,151In Stock	Cut Tape $14.87 $11.64 $10.84 $9.95 View $9.86 $9.74 $9.74 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,720	SMD/SMT	MSOP-16-12	Buck	800 mV to 150 V	100 mA	1 Output	12 uA	200 kHz	- 40 C	+ 150 C	LTC3639	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Hi Eff, 140V 250mA Buck Reg LTC3638MPMSE#PBF Analog Devices 1: $38.43 161In Stock	Mfr. Part # LTC3638MPMSE#PBF Mouser Part # 584-LTC3638MPMSE#PBF	Analog Devices	Switching Voltage Regulators Hi Eff, 140V 250mA Buck Reg Learn More about Analog Devices adi ltc3638 ltc3639 regulators	Datasheet	161In Stock	$38.43 $31.12 $29.29 $28.07	Min.: 1 Mult.: 1 Max.: 128	SMD/SMT	MSOP-16-12	Buck	800 mV to 140 V	250 mA	1 Output	12 uA	Adjustable	- 55 C	+ 150 C	LTC3638	Tube
Switching Voltage Regulators Hi Eff, 140V 250mA Buck Reg LTC3638EMSE#TRPBF Analog Devices 1: $12.79 12In Stock	Mfr. Part # LTC3638EMSE#TRPBF Mouser Part # 584-LTC3638EMSETRPBF	Analog Devices	Switching Voltage Regulators Hi Eff, 140V 250mA Buck Reg Learn More about Analog Devices adi ltc3638 ltc3639 regulators	Datasheet	12In Stock	Cut Tape $12.79 $10.01 $9.32 $8.56 View $8.48 $8.45 $7.19 MouseReel Available	Min.: 1 Mult.: 1	SMD/SMT	MSOP-16-12	Buck	800 mV to 140 V	250 mA	1 Output	12 uA	Adjustable	- 40 C	+ 125 C	LTC3638	Reel, Cut Tape, MouseReel
Switching Voltage Regulators Hi Eff, 140V 250mA Buck Reg LTC3638HMSE#PBF Analog Devices 1: $14.87 25In Stock	Mfr. Part # LTC3638HMSE#PBF Mouser Part # 584-LTC3638HMSE#PBF	Analog Devices	Switching Voltage Regulators Hi Eff, 140V 250mA Buck Reg Learn More about Analog Devices adi ltc3638 ltc3639 regulators	Datasheet	25In Stock	$14.87 $11.64 $10.84 $9.94 View $9.85 $9.27 $9.06 Quote	Min.: 1 Mult.: 1	SMD/SMT	MSOP-16-12	Buck	800 mV to 140 V	250 mA	1 Output	12 uA	Adjustable	- 40 C	+ 150 C	LTC3638	Tube
Switching Voltage Regulators Hi Eff, 140V 250mA Buck Reg LTC3638IMSE#PBF Analog Devices 1: $13.79 11In Stock	Mfr. Part # LTC3638IMSE#PBF Mouser Part # 584-LTC3638IMSE#PBF	Analog Devices	Switching Voltage Regulators Hi Eff, 140V 250mA Buck Reg Learn More about Analog Devices adi ltc3638 ltc3639 regulators	Datasheet	11In Stock	$13.79 $10.87 $9.88 $9.27 View $8.93 $8.70 $8.51 Quote	Min.: 1 Mult.: 1	SMD/SMT	MSOP-16-12	Buck	800 mV to 140 V	250 mA	1 Output	12 uA	Adjustable	- 40 C	+ 125 C	LTC3638	Tube
Switching Voltage Regulators Hi Eff, 150V 100mA Sync Buck Reg LTC3639IMSE#PBF Analog Devices 1: $13.79 46In Stock	Mfr. Part # LTC3639IMSE#PBF Mouser Part # 584-LTC3639IMSE#PBF	Analog Devices	Switching Voltage Regulators Hi Eff, 150V 100mA Sync Buck Reg Learn More about Analog Devices adi ltc3638 ltc3639 regulators	Datasheet	46In Stock	$13.79 $10.87 $9.88 $9.27 View $8.93 $8.70 $8.51 Quote	Min.: 1 Mult.: 1	SMD/SMT	MSOP-16-12	Buck	800 mV to 150 V	100 mA	1 Output	12 uA	200 kHz	- 40 C	+ 125 C	LTC3639	Tube
Switching Voltage Regulators Hi Eff, 150V 100mA Sync Buck Reg LTC3639MPMSE#PBF Analog Devices 1: $33.99 31In Stock	Mfr. Part # LTC3639MPMSE#PBF Mouser Part # 584-LTC3639MPMSE#PBF	Analog Devices	Switching Voltage Regulators Hi Eff, 150V 100mA Sync Buck Reg Learn More about Analog Devices adi ltc3638 ltc3639 regulators	Datasheet	31In Stock	$33.99 $27.52 $25.90 $24.82 View $23.27 Quote	Min.: 1 Mult.: 1	SMD/SMT	MSOP-16-12	Buck	800 mV to 150 V	100 mA	1 Output	12 uA	200 kHz	- 55 C	+ 150 C	LTC3639	Tube

LTC3638 & LTC3639 Step-Down Regulators

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