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 474In 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	474In Stock	$14.87 $11.64 $10.84 $9.94 $9.85	Min.: 1 Mult.: 1 Max.: 379	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 950In 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	950In 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.: 760	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: $12.23 2,921In 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	2,921In Stock	Cut Tape $12.23 $9.57 $8.92 $8.19 View Reel $7.46 $8.11 $7.64 $7.46 $7.46 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2,336 : 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 197In 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	197In Stock	$38.43 $31.12 $29.29 $28.07	Min.: 1 Mult.: 1 Max.: 177	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 $8.56 MouseReel Available	Min.: 1 Mult.: 1 Max.: 128	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 LTC3639MPMSE#PBF Analog Devices 1: $33.99 61In 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	61In 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
Switching Voltage Regulators Hi Eff, 150V 100mA Sync Buck Reg LTC3639IMSE#PBF Analog Devices Restricted Availability	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			Restricted Availability	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

LTC3638 & LTC3639 Step-Down Regulators

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