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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 (CAD) Filter the results in the table by unit price based on your quantity.	Qty.
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890EGN-1#PBF Analog Devices 1: $21.92 1,764In 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	1,764In Stock	$21.92 $17.22 $15.51 $14.60 View $14.43 $13.88 $13.68	Min.: 1 Mult.: 1 Max.: 1,411
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890EUH#TRPBF Analog Devices 1: $20.85 5,735In 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	5,735In Stock	Cut Tape $20.85 $18.04 $14.99 $14.08 $14.05 Reel $12.95 MouseReel Available	Min.: 1 Mult.: 1 Max.: 4,588 : 2,500
Switching Voltage Regulators 150V L IQ, Sync Buck DC/DC Cntr LTC3895IFE#PBF Analog Devices 1: $24.58 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	$24.58 $19.01 $17.41 $16.63 View $16.20 $15.44 $15.25 Quote	Min.: 1 Mult.: 1 Max.: 3,968
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891EFE#TRPBF Analog Devices 1: $18.16 12,076In 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	12,076In Stock	Cut Tape $18.16 $14.43 $12.97 $12.17 View Reel $10.63 $12.04 $11.49 $11.23 $10.63 MouseReel Available	Min.: 1 Mult.: 1 Max.: 9,660 : 2,500
Switching Voltage Regulators 150V L IQ, Sync Buck DC/DC Cntr LTC3895HFE#PBF Analog Devices 1: $26.09 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	$26.09 $20.35 $18.84 $17.88 View $17.12 $16.57	Min.: 1 Mult.: 1 Max.: 1,137
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890MPUH#PBF Analog Devices 1: $66.20 417In 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	417In Stock	$66.20 $54.10 $51.09 $49.65 $46.17	Min.: 1 Mult.: 1 Max.: 333
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891EFE#PBF Analog Devices 1: $17.48 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	$17.48 $13.69 $11.98 $11.55 View $11.19 $10.97	Min.: 1 Mult.: 1 Max.: 844
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3892IUH#PBF Analog Devices 1: $24.58 421In Stock	Mfr. Part # LTC3892IUH#PBF Mouser Part # 584-LTC3892IUH#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	421In Stock	$24.58 $21.05 $19.08 $17.77 $16.33	Min.: 1 Mult.: 1 Max.: 336
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891IUDC#PBF Analog Devices 1: $19.63 348In 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	348In Stock	$19.63 $15.39 $14.14 $13.19 $12.90	Min.: 1 Mult.: 1 Max.: 278
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890HUH-2#PBF Analog Devices 1: $25.86 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	$25.86 $20.74 $17.61	Min.: 1 Mult.: 1
Switching Voltage Regulators 60V L IQ, 3x Out, Buck/Buck/Boost Sync C LTC3899IFE#PBF Analog Devices 1: $26.09 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	$26.09 $20.68 $19.32 $17.83 View $17.02 $16.70	Min.: 1 Mult.: 1
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3892IUH#TRPBF Analog Devices 1: $27.13 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 $27.13 $21.54 $20.15 $18.69 View Reel $18.06 $18.24 $18.07 $18.06 $18.06 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2,311 : 2,500
Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr LTC3894EFE#PBF Analog Devices 1: $13.38 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	$13.38 $10.35 $9.60 $8.77 View $8.37 $8.14 $7.92 Quote	Min.: 1 Mult.: 1 Max.: 5,285
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890HUH#PBF Analog Devices 1: $26.90 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	$26.90 $21.36 $19.40 $18.88	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: $24.98 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	$24.98 $19.80 $18.50 $17.06	Min.: 1 Mult.: 1 Max.: 203
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891EUDC#TRPBF Analog Devices 1: $16.78 1,454In 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	1,454In Stock	Cut Tape $16.78 $13.12 $12.21 $11.20 View $10.84 $10.74 $10.60 $10.60 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2,363
Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr LTC3894EFE#TRPBF Analog Devices 1: $13.31 849In 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	849In Stock	Cut Tape $13.31 $10.31 $9.58 $8.76 View $8.47 $8.34 $8.34 MouseReel Available	Min.: 1 Mult.: 1 Max.: 679
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890HGN-1#PBF Analog Devices 1: $28.14 983In 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	983In Stock	$28.14 $22.38 $20.09 $18.99 View $18.49 $18.09	Min.: 1 Mult.: 1 Max.: 786
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890IUH#PBF Analog Devices 1: $25.59 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	$25.59 $20.28 $18.95 $17.48	Min.: 1 Mult.: 1 Max.: 117
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890IUH#TRPBF Analog Devices 1: $25.59 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 $25.59 $20.28 $18.95 $17.50 $16.79 $16.79 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: $65.00 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	$65.00 $54.22 $50.69 $48.80 Quote Quote	Min.: 1 Mult.: 1
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891EUDC#PBF Analog Devices 1: $17.38 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	$17.38 $13.64 $11.72 $11.32 View $11.12 $10.83	Min.: 1 Mult.: 1 Max.: 850
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891HFE#PBF Analog Devices 1: $22.44 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	$22.44 $17.57 $16.36 $15.00 $14.86	Min.: 1 Mult.: 1 Max.: 300
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891IFE#PBF Analog Devices 1: $21.01 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	$21.01 $16.44 $15.31 $14.05 $13.91	Min.: 1 Mult.: 1 Max.: 385
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891IUDC#TRPBF Analog Devices 1: $19.64 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 $19.64 $15.48 $14.43 $13.29 $13.25 $13.25 MouseReel Available	Min.: 1 Mult.: 1 Max.: 276

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