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LTC389x Synchronous DC/DC Controllers

Analog Devices Inc. LTC389x Synchronous Controllers are high-performance step-down switching regulator DC/DC controllers. The LTC389x controllers, with the exception of the LTC3894 series, drive all N-channel synchronous power MOSFET stages. The MOSFET stage can operate from input voltages up to 150V. The high-voltage LTC3894 Controllers drive a P-channel power MOSFET switch. LTC389x's constant-frequency, current-mode architecture achieves up to an 850kHz phase-lockable frequency. Designers can program the gate drive voltage from 5V to 10V. This programming enables the use of standard-level or logic FETs for maximum efficiency. Using external resistors, designers can also program the output voltage from 0.8V to 60V. Pin-programming allows for a fixed 5V or 3.3V output voltage.

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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.
Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr LTC3894EFE#PBF Analog Devices 1: $9.29 6,607In Stock	Mfr. Part # LTC3894EFE#PBF Mouser Part # 584-LTC3894EFE#PBF	Analog Devices	Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr Learn More about Analog Devices adi ltc389x controllers	Datasheet	6,607In Stock	$9.29 $7.19 $6.67 $6.09 View $5.81 $5.65 $5.50 Quote	Min.: 1 Mult.: 1 Max.: 5,285
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890EGN-1#PBF Analog Devices 1: $15.22 1,649In Stock	Mfr. Part # LTC3890EGN-1#PBF Mouser Part # 584-LTC3890EGN-1#PBF	Analog Devices	Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	1,649In Stock	$15.22 $11.96 $10.77 $10.14 View $10.02 $9.64 $9.50	Min.: 1 Mult.: 1 Max.: 1,319
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890EUH#TRPBF Analog Devices 1: $14.48 5,635In Stock	Mfr. Part # LTC3890EUH#TRPBF Mouser Part # 584-LTC3890EUH#TRPBF	Analog Devices	Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	5,635In Stock	Cut Tape $14.48 $12.53 $10.41 $9.78 $9.76 Reel $8.99 MouseReel Available	Min.: 1 Mult.: 1 Max.: 4,508 : 2,500
Switching Voltage Regulators 150V L IQ, Sync Buck DC/DC Cntr LTC3895IFE#PBF Analog Devices 1: $17.07 4,960In Stock 500On Order	Mfr. Part # LTC3895IFE#PBF Mouser Part # 584-LTC3895IFE#PBF	Analog Devices	Switching Voltage Regulators 150V L IQ, Sync Buck DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	4,960In Stock 500On Order	$17.07 $13.20 $12.09 $11.55 View $11.25 $10.72 $10.59 Quote	Min.: 1 Mult.: 1 Max.: 3,968
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891EFE#TRPBF Analog Devices 1: $12.61 11,981In Stock	Mfr. Part # LTC3891EFE#TRPBF Mouser Part # 584-LTC3891EFE#TRPBF	Analog Devices	Switching Voltage Regulators L IQ, 60V Sync Buck Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	11,981In Stock	Cut Tape $12.61 $10.02 $9.01 $8.45 View Reel $7.38 $8.36 $7.98 $7.80 $7.38 MouseReel Available	Min.: 1 Mult.: 1 Max.: 9,584 : 2,500
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891IUDC#PBF Analog Devices 1: $13.88 233In Stock	Mfr. Part # LTC3891IUDC#PBF Mouser Part # 584-LTC3891IUDC#PBF	Analog Devices	Switching Voltage Regulators L IQ, 60V Sync Buck Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	233In Stock	$13.88 $10.87 $10.11 $9.28	Min.: 1 Mult.: 1 Max.: 186
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890MPUH#PBF Analog Devices 1: $45.97 405In Stock	Mfr. Part # LTC3890MPUH#PBF Mouser Part # 584-LTC3890MPUH#PBF	Analog Devices	Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	405In Stock	$45.97 $37.57 $35.48 $34.48 $32.06	Min.: 1 Mult.: 1 Max.: 324
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891EFE#PBF Analog Devices 1: $12.79 1,056In Stock	Mfr. Part # LTC3891EFE#PBF Mouser Part # 584-LTC3891EFE#PBF	Analog Devices	Switching Voltage Regulators L IQ, 60V Sync Buck Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	1,056In Stock	$12.79 $10.02 $9.32 $8.55 View $8.47 $7.97	Min.: 1 Mult.: 1 Max.: 844
Switching Voltage Regulators 60V L IQ, 3x Out, Buck/Buck/Boost Sync C LTC3899IFE#PBF Analog Devices 1: $18.95 88In Stock	Mfr. Part # LTC3899IFE#PBF Mouser Part # 584-LTC3899IFE#PBF	Analog Devices	Switching Voltage Regulators 60V L IQ, 3x Out, Buck/Buck/Boost Sync C Learn More about Analog Devices adi ltc389x controllers	Datasheet	88In Stock	$18.95 $15.02 $14.03 $12.95 View $12.35 $12.13	Min.: 1 Mult.: 1
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890HUH-2#PBF Analog Devices 1: $18.77 92In Stock	Mfr. Part # LTC3890HUH-2#PBF Mouser Part # 584-LTC3890HUH-2#PBF	Analog Devices	Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	92In Stock	$18.77 $14.88 $13.91 $12.83 View $12.23 $12.01	Min.: 1 Mult.: 1
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3892IUH#TRPBF Analog Devices 1: $18.84 2,889In Stock	Mfr. Part # LTC3892IUH#TRPBF Mouser Part # 584-LTC3892IUH#TRPBF	Analog Devices	Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	2,889In Stock	Cut Tape $18.84 $14.96 $13.99 $12.98 View Reel $12.54 $12.67 $12.55 $12.54 $12.54 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2,311 : 2,500
Switching Voltage Regulators 150V L IQ, Sync Buck DC/DC Cntr LTC3895HFE#PBF Analog Devices 1: $18.60 1,352In Stock	Mfr. Part # LTC3895HFE#PBF Mouser Part # 584-LTC3895HFE#PBF	Analog Devices	Switching Voltage Regulators 150V L IQ, Sync Buck DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	1,352In Stock	$18.60 $14.80 $13.26 $12.79 View $12.25 $11.99	Min.: 1 Mult.: 1 Max.: 1,081
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890HUH#PBF Analog Devices 1: $18.68 504In Stock	Mfr. Part # LTC3890HUH#PBF Mouser Part # 584-LTC3890HUH#PBF	Analog Devices	Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	504In Stock	$18.68 $14.83 $13.47 $13.11	Min.: 1 Mult.: 1 Max.: 403
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890IGN-1#PBF Analog Devices 1: $17.35 254In Stock	Mfr. Part # LTC3890IGN-1#PBF Mouser Part # 584-LTC3890IGN-1#PBF	Analog Devices	Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	254In Stock	$17.35 $13.75 $12.85 $11.85	Min.: 1 Mult.: 1 Max.: 203
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3892IUH-2#PBF Analog Devices 1: $18.57 149In Stock	Mfr. Part # LTC3892IUH-2#PBF Mouser Part # 584-LTC3892IUH-2#PBF	Analog Devices	Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	149In Stock	$18.57 $14.72 $13.76 $12.69	Min.: 1 Mult.: 1 Max.: 119
Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr LTC3894EFE#TRPBF Analog Devices 1: $9.24 725In Stock	Mfr. Part # LTC3894EFE#TRPBF Mouser Part # 584-LTC3894EFE#TRPBF	Analog Devices	Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr Learn More about Analog Devices adi ltc389x controllers	Datasheet	725In Stock	Cut Tape $9.24 $7.16 $6.65 $6.08 View $5.88 $5.79 $5.79 MouseReel Available	Min.: 1 Mult.: 1 Max.: 580
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890HGN-1#PBF Analog Devices 1: $19.54 508In Stock	Mfr. Part # LTC3890HGN-1#PBF Mouser Part # 584-LTC3890HGN-1#PBF	Analog Devices	Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	508In Stock	$19.54 $15.54 $13.95 $13.19 $12.84	Min.: 1 Mult.: 1 Max.: 406
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890IUH#PBF Analog Devices 1: $17.77 147In Stock	Mfr. Part # LTC3890IUH#PBF Mouser Part # 584-LTC3890IUH#PBF	Analog Devices	Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	147In Stock	$17.77 $14.08 $13.16 $12.14	Min.: 1 Mult.: 1 Max.: 117
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890IUH#TRPBF Analog Devices 1: $17.77 329In Stock	Mfr. Part # LTC3890IUH#TRPBF Mouser Part # 584-LTC3890IUH#TRPBF	Analog Devices	Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	329In Stock	Cut Tape $17.77 $14.08 $13.16 $12.15 $11.66 $11.66 MouseReel Available	Min.: 1 Mult.: 1 Max.: 263
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890MPGN-1#PBF Analog Devices 1: $45.14 28In Stock	Mfr. Part # LTC3890MPGN-1#PBF Mouser Part # 584-LTC3890MPGN-1PBF	Analog Devices	Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	28In Stock	$45.14 $37.65 $35.20 $33.89 Quote Quote	Min.: 1 Mult.: 1
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891EUDC#PBF Analog Devices 1: $12.07 1,063In Stock	Mfr. Part # LTC3891EUDC#PBF Mouser Part # 584-LTC3891EUDC#PBF	Analog Devices	Switching Voltage Regulators L IQ, 60V Sync Buck Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	1,063In Stock	$12.07 $9.47 $8.14 $7.86 View $7.72 $7.52	Min.: 1 Mult.: 1 Max.: 850
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891EUDC#TRPBF Analog Devices 1: $11.65 1,783In Stock	Mfr. Part # LTC3891EUDC#TRPBF Mouser Part # 584-LTC3891EUDCTRPBF	Analog Devices	Switching Voltage Regulators L IQ, 60V Sync Buck Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	1,783In Stock	Cut Tape $11.65 $9.11 $8.48 $7.78 View $7.53 $7.46 $7.36 $7.36 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,426
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891HFE#PBF Analog Devices 1: $15.58 345In Stock	Mfr. Part # LTC3891HFE#PBF Mouser Part # 584-LTC3891HFE#PBF	Analog Devices	Switching Voltage Regulators L IQ, 60V Sync Buck Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	345In Stock	$15.58 $12.20 $11.36 $10.42	Min.: 1 Mult.: 1 Max.: 276
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891IFE#PBF Analog Devices 1: $14.59 482In Stock	Mfr. Part # LTC3891IFE#PBF Mouser Part # 584-LTC3891IFE#PBF	Analog Devices	Switching Voltage Regulators L IQ, 60V Sync Buck Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	482In Stock	$14.59 $11.42 $10.63 $9.76 $9.66	Min.: 1 Mult.: 1 Max.: 385
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891IUDC#TRPBF Analog Devices 1: $13.64 346In Stock	Mfr. Part # LTC3891IUDC#TRPBF Mouser Part # 584-LTC3891IUDCTRPBF	Analog Devices	Switching Voltage Regulators L IQ, 60V Sync Buck Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	346In Stock	Cut Tape $13.64 $10.75 $10.02 $9.23 $9.20 $9.20 MouseReel Available	Min.: 1 Mult.: 1 Max.: 276

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