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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 LTC3891MPFE#PBF Analog Devices 1: $34.33 495In Stock 222On Order	Mfr. Part No. LTC3891MPFE#PBF Mouser Part No 584-LTC3891MPFE#PBF	Analog Devices	Switching Voltage Regulators L IQ, 60V Sync Buck Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	495In Stock 222On Order	$34.33 $27.79 $26.16 $25.07 $23.50	Min.: 1 Mult.: 1 Max.: 396
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891MPUDC#PBF Analog Devices 1: $33.53 31In Stock	Mfr. Part No. LTC3891MPUDC#PBF Mouser Part No 584-LTC3891MPUDC#PBF	Analog Devices	Switching Voltage Regulators L IQ, 60V Sync Buck Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	31In Stock	$33.53 $26.97 $24.57 $23.26 View $22.64 Quote	Min.: 1 Mult.: 1
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3892EUH-2#PBF Analog Devices 1: $17.20 358In Stock	Mfr. Part No. LTC3892EUH-2#PBF Mouser Part No 584-LTC3892EUH-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	358In Stock	$17.20 $13.47 $12.53 $11.50	Min.: 1 Mult.: 1 Max.: 286
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3892HUH-2#PBF Analog Devices 1: $19.75 38In Stock	Mfr. Part No. LTC3892HUH-2#PBF Mouser Part No 584-LTC3892HUH-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	38In Stock	$19.75 $15.69 $14.27 $13.45 View $12.94 $12.71 Quote	Min.: 1 Mult.: 1
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3892IFE-1#PBF Analog Devices 1: $18.46 115In Stock	Mfr. Part No. LTC3892IFE-1#PBF Mouser Part No 584-LTC3892IFE-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	115In Stock	$18.46 $14.66 $13.43	Min.: 1 Mult.: 1 Max.: 92
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 No. LTC3892IUH-2#PBF Mouser Part No 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 LTC3894HFE#PBF Analog Devices 1: $11.15 464In Stock	Mfr. Part No. LTC3894HFE#PBF Mouser Part No 584-LTC3894HFE#PBF	Analog Devices	Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr Learn More about Analog Devices adi ltc389x controllers	Datasheet	464In Stock	$11.15 $8.70 $8.09 $7.41 $7.04	Min.: 1 Mult.: 1 Max.: 384
Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr LTC3894IFE#PBF Analog Devices 1: $10.42 74In Stock	Mfr. Part No. LTC3894IFE#PBF Mouser Part No 584-LTC3894IFE#PBF	Analog Devices	Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr Learn More about Analog Devices adi ltc389x controllers	Datasheet	74In Stock	$10.42 $8.11 $7.53 $6.88 View $6.49 $6.37 $6.25 Quote	Min.: 1 Mult.: 1
Switching Voltage Regulators 150V L IQ, Sync Buck DC/DC Cntr LTC3895EFE#PBF Analog Devices 1: $16.39 270In Stock	Mfr. Part No. LTC3895EFE#PBF Mouser Part No 584-LTC3895EFE#PBF	Analog Devices	Switching Voltage Regulators 150V L IQ, Sync Buck DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	270In Stock	$16.39 $13.17 $11.19 $10.96	Min.: 1 Mult.: 1 Max.: 216
Switching Voltage Regulators 150V L IQ, Sync Buck DC/DC Cntr LTC3895EFE#TRPBF Analog Devices 1: $16.39 968In Stock	Mfr. Part No. LTC3895EFE#TRPBF Mouser Part No 584-LTC3895EFE#TRPBF	Analog Devices	Switching Voltage Regulators 150V L IQ, Sync Buck DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	968In Stock	Cut Tape $16.39 $12.83 $11.95 $10.97 View $10.87 $10.68 $10.68 MouseReel Available	Min.: 1 Mult.: 1 Max.: 774
Switching Voltage Regulators 150V L IQ, Sync Buck DC/DC Cntr LTC3895HFE#TRPBF Analog Devices 1: $18.70 986In Stock	Mfr. Part No. LTC3895HFE#TRPBF Mouser Part No 584-LTC3895HFE#TRPBF	Analog Devices	Switching Voltage Regulators 150V L IQ, Sync Buck DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	986In Stock	Cut Tape $18.70 $14.85 $13.88 $12.88 View $12.56 $12.45 $12.45 MouseReel Available	Min.: 1 Mult.: 1 Max.: 788
Switching Voltage Regulators 150V L IQ, Sync Buck DC/DC Cntr LTC3895IFE#TRPBF Analog Devices 1: $17.07 208In Stock	Mfr. Part No. LTC3895IFE#TRPBF Mouser Part No 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	208In Stock	Cut Tape $17.07 $13.52 $12.64 $11.70 $11.70 MouseReel Available	Min.: 1 Mult.: 1 Max.: 166
Switching Voltage Regulators 150V L IQ, Sync Inv DC/DC Cntr LTC3896HFE#PBF Analog Devices 1: $18.79 31In Stock	Mfr. Part No. LTC3896HFE#PBF Mouser Part No 584-LTC3896HFE#PBF	Analog Devices	Switching Voltage Regulators 150V L IQ, Sync Inv DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	31In Stock	$18.79 $15.21 $12.92 $12.59 View $12.04 $11.82 Quote	Min.: 1 Mult.: 1
Switching Voltage Regulators 150V L IQ, Sync Inv DC/DC Cntr LTC3896IFE#PBF Analog Devices 1: $17.79 31In Stock	Mfr. Part No. LTC3896IFE#PBF Mouser Part No 584-LTC3896IFE#PBF	Analog Devices	Switching Voltage Regulators 150V L IQ, Sync Inv DC/DC Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	31In Stock	$17.79 $14.40 $12.23 $12.16 View $11.59 $11.39 $11.38 Quote	Min.: 1 Mult.: 1
Switching Voltage Regulators PolyPhase Synchronous Boost Controller with Input/Output Protection LTC3897EUHF#PBF Analog Devices 1: $18.37 58In Stock	Mfr. Part No. LTC3897EUHF#PBF Mouser Part No 584-LTC3897EUHF#PBF	Analog Devices	Switching Voltage Regulators PolyPhase Synchronous Boost Controller with Input/Output Protection Learn More about Analog Devices adi ltc3897 controllers	Datasheet	58In Stock	$18.37 $14.58 $13.36 $12.57 View $12.04 $11.79 Quote	Min.: 1 Mult.: 1
Switching Voltage Regulators PolyPhase Synchronous Boost Controller with Input/Output Protection LTC3897HUHF#PBF Analog Devices 1: $20.98 34In Stock	Mfr. Part No. LTC3897HUHF#PBF Mouser Part No 584-LTC3897HUHF#PBF	Analog Devices	Switching Voltage Regulators PolyPhase Synchronous Boost Controller with Input/Output Protection Learn More about Analog Devices adi ltc3897 controllers	Datasheet	34In Stock	$20.98 $16.64 $15.54 $14.13 View $13.82 $13.70 Quote	Min.: 1 Mult.: 1
Switching Voltage Regulators 60V L IQ, 3x Out, Buck/Buck/Boost Sync C LTC3899HUHF#PBF Analog Devices 1: $20.32 42In Stock	Mfr. Part No. LTC3899HUHF#PBF Mouser Part No 584-LTC3899HUHF#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	42In Stock	$20.32 $16.10 $15.05 $13.89 View $13.25 $13.02	Min.: 1 Mult.: 1
Switching Voltage Regulators a0V L IQ, 3x Out, Buck/Buck/Boost Sync C LTC3899IUHF#PBF Analog Devices 1: $18.63 39In Stock	Mfr. Part No. LTC3899IUHF#PBF Mouser Part No 584-LTC3899IUHF#PBF	Analog Devices	Switching Voltage Regulators a0V L IQ, 3x Out, Buck/Buck/Boost Sync C Learn More about Analog Devices adi ltc389x controllers	Datasheet	39In Stock	$18.63 $14.69 $13.43 $12.60 View $12.31 $11.78 Quote	Min.: 1 Mult.: 1
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890EUH#PBF Analog Devices 1: $16.00 85In Stock	Mfr. Part No. LTC3890EUH#PBF Mouser Part No 584-LTC3890EUH#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	85In Stock	$16.00 $12.52 $11.66 $10.70 View $10.60 $9.92 $9.75 Quote	Min.: 1 Mult.: 1
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890EUH-2#PBF Analog Devices 1: $15.77 10In Stock	Mfr. Part No. LTC3890EUH-2#PBF Mouser Part No 584-LTC3890EUH-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	10In Stock	$15.77 $11.99 $11.24 $10.55 View $10.36 $9.93 $9.71 Quote	Min.: 1 Mult.: 1
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3890HGN-3#PBF Analog Devices 1: $19.54 19In Stock	Mfr. Part No. LTC3890HGN-3#PBF Mouser Part No 584-LTC3890HGN-3#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	19In Stock	$19.54 $15.54 $13.45 $12.51 View $12.29 $11.77 $11.64 Quote	Min.: 1 Mult.: 1
Switching Voltage Regulators L IQ, 60V Sync Buck Cntr LTC3891HUDC#PBF Analog Devices 1: $14.53 17In Stock	Mfr. Part No. LTC3891HUDC#PBF Mouser Part No 584-LTC3891HUDC#PBF	Analog Devices	Switching Voltage Regulators L IQ, 60V Sync Buck Cntr Learn More about Analog Devices adi ltc389x controllers	Datasheet	17In Stock	$14.53 $11.47 $9.91 $9.58 View $9.42 $9.18 $9.01 Quote	Min.: 1 Mult.: 1
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3892EFE-1#PBF Analog Devices 1: $16.80 34In Stock	Mfr. Part No. LTC3892EFE-1#PBF Mouser Part No 584-LTC3892EFE-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	34In Stock	$16.80 $13.36 $11.34 $11.08 View $10.85 $10.34 $10.19 Quote	Min.: 1 Mult.: 1
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3892HFE-1#PBF Analog Devices 1: $19.37 30In Stock	Mfr. Part No. LTC3892HFE-1#PBF Mouser Part No 584-LTC3892HFE-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	30In Stock	$19.37 $15.39 $14.11 $13.29 View $12.72 $12.46	Min.: 1 Mult.: 1
Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr LTC3892HUH#PBF Analog Devices 1: $19.91 100In Stock	Mfr. Part No. LTC3892HUH#PBF Mouser Part No 584-LTC3892HUH#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	100In Stock	$19.91 $15.78 $14.75 $13.60	Min.: 1 Mult.: 1 Max.: 80

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