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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 (PEN) 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: S/ 49.32 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 S/ 49.32 S/ 38.73 S/ 36.08 S/ 33.20 View Reel S/ 28.73 S/ 33.01 S/ 31.06 S/ 30.36 S/ 28.73 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: S/ 59.05 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	S/ 59.05 S/ 46.67 S/ 41.77 S/ 39.39 View S/ 38.26 S/ 37.64 S/ 36.82	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: S/ 60.45 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 S/ 60.45 S/ 47.84 S/ 44.69 S/ 41.30 View Reel S/ 35.93 S/ 38.85 S/ 37.99 S/ 35.93 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: S/ 68.86 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	S/ 68.86 S/ 54.69 S/ 48.97 S/ 47.22 View S/ 45.11 S/ 44.26 Quote	Min.: 1 Mult.: 1 Max.: 3,966
Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr LTC3894EFE#PBF Analog Devices 1: S/ 35.77 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	S/ 35.77 S/ 27.83 S/ 24.06 S/ 23.12 View S/ 22.50 S/ 21.95 S/ 21.41 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: S/ 185.83 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	S/ 185.83 S/ 152.24 S/ 136.39 S/ 132.62 S/ 129.97	Min.: 1 Mult.: 1 Max.: 324
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891EFE#PBF Analog Devices 1: S/ 49.79 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	S/ 49.79 S/ 39.00 S/ 36.28 S/ 33.28 View S/ 32.97 S/ 31.02	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: S/ 73.06 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	S/ 73.06 S/ 57.92 S/ 54.14 S/ 49.94 View S/ 47.61 S/ 46.75	Min.: 1 Mult.: 1
Switching Voltage Regulators 60V L IQ, 3x Out, Buck/Buck/Boost Sync C LTC3899IFE#PBF Analog Devices 1: S/ 72.95 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	S/ 72.95 S/ 58.04 S/ 52.04 S/ 50.17 View S/ 48.07 S/ 47.06 Quote	Min.: 1 Mult.: 1
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3892IUH#TRPBF Analog Devices 1: S/ 73.33 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 S/ 73.33 S/ 58.23 S/ 54.46 S/ 50.52 View Reel S/ 48.81 S/ 49.32 S/ 48.85 S/ 48.81 S/ 48.81 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: S/ 73.10 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	S/ 73.10 S/ 57.96 S/ 54.14 S/ 49.98 View S/ 47.68 S/ 46.83	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: S/ 72.71 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	S/ 72.71 S/ 57.73 S/ 52.43 S/ 51.03	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: S/ 67.53 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	S/ 67.53 S/ 53.52 S/ 50.02 S/ 46.13	Min.: 1 Mult.: 1 Max.: 203
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891IUDC#PBF Analog Devices 1: S/ 53.09 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	S/ 53.09 S/ 41.84 S/ 36.08 S/ 34.88	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: S/ 72.28 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	S/ 72.28 S/ 57.30 S/ 53.56 S/ 49.40	Min.: 1 Mult.: 1 Max.: 119
Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr LTC3894EFE#TRPBF Analog Devices 1: S/ 20.20 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 S/ 20.20 S/ 19.77 S/ 19.35 S/ 18.96 View S/ 18.65 S/ 18.37 S/ 18.37 MouseReel Available	Min.: 1 Mult.: 1 Max.: 580
Switching Voltage Regulators 150V L IQ, Sync Buck DC/DC Cntr LTC3895IFE#TRPBF Analog Devices 1: S/ 68.86 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 S/ 68.86 S/ 54.69 S/ 51.15 S/ 47.37 S/ 47.37 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: S/ 76.06 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	S/ 76.06 S/ 60.49 S/ 54.30 S/ 51.34 S/ 49.98	Min.: 1 Mult.: 1 Max.: 352
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890IUH#PBF Analog Devices 1: S/ 69.17 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	S/ 69.17 S/ 54.81 S/ 51.23 S/ 47.25	Min.: 1 Mult.: 1 Max.: 117
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890IUH#TRPBF Analog Devices 1: S/ 69.17 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 S/ 69.17 S/ 54.81 S/ 51.23 S/ 47.29 S/ 47.29 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: S/ 175.71 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	S/ 175.71 S/ 146.55 S/ 137.02 S/ 131.92 Quote Quote	Min.: 1 Mult.: 1
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891EUDC#PBF Analog Devices 1: S/ 46.98 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	S/ 46.98 S/ 36.86 S/ 31.68 S/ 30.60 View S/ 30.05 S/ 29.27	Min.: 1 Mult.: 1 Max.: 842
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891EUDC#TRPBF Analog Devices 1: S/ 45.35 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 S/ 45.35 S/ 35.46 S/ 33.01 S/ 30.28 View S/ 29.31 S/ 29.04 S/ 28.65 S/ 28.65 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,186
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891HFE#PBF Analog Devices 1: S/ 60.65 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	S/ 60.65 S/ 47.49 S/ 44.22 S/ 40.56	Min.: 1 Mult.: 1 Max.: 276
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891IFE#PBF Analog Devices 1: S/ 56.79 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	S/ 56.79 S/ 44.45 S/ 41.38 S/ 37.99 S/ 37.60	Min.: 1 Mult.: 1 Max.: 385

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