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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 Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891EFE#TRPBF Analog Devices 1: $12.67 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 $12.67 $9.95 $9.27 $8.53 View Reel $7.38 $8.48 $7.98 $7.80 $7.38 MouseReel Available	Min.: 1 Mult.: 1 Max.: 9,584 : 2,500
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890EGN-1#PBF Analog Devices 1: $15.17 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	$15.17 $11.99 $10.73 $10.12 View $9.83 $9.67 $9.46	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: $15.53 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 $15.53 $12.29 $11.48 $10.61 View Reel $9.23 $9.98 $9.76 $9.23 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: $17.69 4,958In 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	4,958In Stock 500On Order	$17.69 $14.05 $12.58 $12.13 View $11.59 $11.37 Quote	Min.: 1 Mult.: 1 Max.: 3,966
Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr LTC3894EFE#PBF Analog Devices 1: $9.19 6,424In 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	6,424In Stock	$9.19 $7.15 $6.18 $5.94 View $5.78 $5.64 $5.50 Quote	Min.: 1 Mult.: 1 Max.: 5,139
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890MPUH#PBF Analog Devices 1: $47.74 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	$47.74 $39.11 $35.04 $34.07 $33.39	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, 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, 3x Out, Buck/Buck/Boost Sync C LTC3899IFE#PBF Analog Devices 1: $18.74 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	$18.74 $14.91 $13.37 $12.89 View $12.35 $12.09 Quote	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: $18.78 1,332In 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	1,332In Stock	$18.78 $14.89 $13.91 $12.84 View $12.25 $12.03	Min.: 1 Mult.: 1 Max.: 1,065
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 L IQ, 60V Sync Buck Cntr LTC3891IUDC#PBF Analog Devices 1: $13.64 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	$13.64 $10.75 $9.27 $8.96	Min.: 1 Mult.: 1 Max.: 186
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: $5.19 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 $5.19 $5.08 $4.97 $4.87 View $4.79 $4.72 $4.72 MouseReel Available	Min.: 1 Mult.: 1 Max.: 580
Switching Voltage Regulators 150V L IQ, Sync Buck DC/DC Cntr LTC3895IFE#TRPBF Analog Devices 1: $17.69 206In Stock	Mfr. Part # LTC3895IFE#TRPBF Mouser Part # 584-LTC3895IFE#TRPBF	Analog Devices	Switching Voltage Regulators 150V L IQ, Sync Buck DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	206In Stock	Cut Tape $17.69 $14.05 $13.14 $12.17 $12.17 MouseReel Available	Min.: 1 Mult.: 1 Max.: 164
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890HGN-1#PBF Analog Devices 1: $19.54 440In 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	440In Stock	$19.54 $15.54 $13.95 $13.19 $12.84	Min.: 1 Mult.: 1 Max.: 352
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 259In 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	259In Stock	Cut Tape $17.77 $14.08 $13.16 $12.15 $12.15 MouseReel Available	Min.: 1 Mult.: 1 Max.: 207
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 1,053In 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	1,053In Stock	$12.07 $9.47 $8.14 $7.86 View $7.72 $7.52	Min.: 1 Mult.: 1 Max.: 842
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891EUDC#TRPBF Analog Devices 1: $11.65 1,483In 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	1,483In 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.: 1,186
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891HFE#PBF Analog Devices 1: $15.58 220In 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	220In 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

LTC389x Synchronous DC/DC Controllers

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