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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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Part #

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3890HGN-1#PBF
Analog Devices
1: $18.06
1,164Expected 2026/02/16

Mfr. Part No.
LTC3890HGN-1#PBF

Mouser Part No
584-LTC3890HGN-1#PBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

1,164Expected 2026/02/16

$18.06

$14.60

$13.99

$12.33

Min.: 1
Mult.: 1

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3892HUH#PBF
Analog Devices
1: $19.11
199Expected 2026/02/16

Mfr. Part No.
LTC3892HUH#PBF

Mouser Part No
584-LTC3892HUH#PBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

199Expected 2026/02/16

$19.11

$15.83

$15.18

$13.36

Min.: 1
Mult.: 1

Switching Voltage Regulators 150V L IQ, Sync Inv DC/DC Cntr

LTC3896HFE#PBF
Analog Devices
1: $18.49
40Expected 2026/03/20

Mfr. Part No.
LTC3896HFE#PBF

Mouser Part No
584-LTC3896HFE#PBF

Switching Voltage Regulators 150V L IQ, Sync Inv DC/DC Cntr

Datasheet

40Expected 2026/03/20

$18.49

$14.94

$14.33

$12.62

Min.: 1
Mult.: 1

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3890EGN-3#TRPBF
Analog Devices
2,500: $9.59
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3890EGN-3#TRPBF

Mouser Part No
584-C3890EGN-3TRPBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$9.59

Min.: 2,500
Mult.: 2,500

Reel: 2,500

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3890EUH-2#TRPBF
Analog Devices
2,500: $9.86
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3890EUH-2#TRPBF

Mouser Part No
584-C3890EUH-2TRPBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$9.86

Min.: 2,500
Mult.: 2,500

Reel: 2,500

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3890HGN-1#TRPBF
Analog Devices
2,500: $12.33
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3890HGN-1#TRPBF

Mouser Part No
584-C3890HGN-1TRPBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$12.33

Min.: 2,500
Mult.: 2,500

Reel: 2,500

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3890HGN-3#TRPBF
Analog Devices
2,500: $12.33
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3890HGN-3#TRPBF

Mouser Part No
584-C3890HGN-3TRPBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$12.33

Min.: 2,500
Mult.: 2,500

Reel: 2,500

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3890HUH-2#TRPBF
Analog Devices
2,500: $12.61
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3890HUH-2#TRPBF

Mouser Part No
584-C3890HUH-2TRPBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$12.61

Min.: 2,500
Mult.: 2,500

Reel: 2,500

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3890IGN-1#TRPBF
Analog Devices
2,500: $11.65
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3890IGN-1#TRPBF

Mouser Part No
584-C3890IGN-1TRPBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$11.65

Min.: 2,500
Mult.: 2,500

Reel: 2,500

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3890IGN-3#TRPBF
Analog Devices
2,500: $11.65
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3890IGN-3#TRPBF

Mouser Part No
584-C3890IGN-3TRPBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$11.65

Min.: 2,500
Mult.: 2,500

Reel: 2,500

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3890IUH-2#TRPBF
Analog Devices
2,500: $11.93
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3890IUH-2#TRPBF

Mouser Part No
584-C3890IUH-2TRPBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$11.93

Min.: 2,500
Mult.: 2,500

Reel: 2,500

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3890MPGN-1#TRPBF
Analog Devices
2,500: $33.97
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3890MPGN-1#TRPBF

Mouser Part No
584-C3890MPGN-1TRPBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$33.97

Min.: 2,500
Mult.: 2,500

Reel: 2,500

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3890MPGN-3#TRPBF
Analog Devices
2,500: $33.97
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3890MPGN-3#TRPBF

Mouser Part No
584-C3890MPGN-3TRPBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$33.97

Min.: 2,500
Mult.: 2,500

Reel: 2,500

Switching Voltage Regulators L IQ, 60V Sync Buck Cntr

LTC3891MPUDC#TRPBF
Analog Devices
2,500: $21.93
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3891MPUDC#TRPBF

Mouser Part No
584-C3891MPUDCTRPBF

Switching Voltage Regulators L IQ, 60V Sync Buck Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$21.93

Min.: 2,500
Mult.: 2,500

Reel: 2,500

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3892EFE-1#TRPBF
Analog Devices
2,000: $10.34
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3892EFE-1#TRPBF

Mouser Part No
584-C3892EFE-1TRPBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$10.34

Min.: 2,000
Mult.: 2,000

Reel: 2,000

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3892EUH-2#TRPBF
Analog Devices
2,500: $10.59
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3892EUH-2#TRPBF

Mouser Part No
584-C3892EUH-2TRPBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$10.59

Min.: 2,500
Mult.: 2,500

Reel: 2,500

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3892HFE-1#TRPBF
Analog Devices
2,000: $13.11
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3892HFE-1#TRPBF

Mouser Part No
584-C3892HFE-1TRPBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$13.11

Min.: 2,000
Mult.: 2,000

Reel: 2,000

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3892HUH-2#TRPBF
Analog Devices
2,500: $13.36
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3892HUH-2#TRPBF

Mouser Part No
584-C3892HUH-2TRPBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$13.36

Min.: 2,500
Mult.: 2,500

Reel: 2,500

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3892IFE-1#TRPBF
Analog Devices
2,000: $12.47
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3892IFE-1#TRPBF

Mouser Part No
584-C3892IFE-1TRPBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$12.47

Min.: 2,000
Mult.: 2,000

Reel: 2,000

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3892IUH-2#TRPBF
Analog Devices
2,500: $12.47
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3892IUH-2#TRPBF

Mouser Part No
584-C3892IUH-2TRPBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$12.47

Min.: 2,500
Mult.: 2,500

Reel: 2,500

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3892MPFE-1#TRPBF
Analog Devices
2,000: $32.82
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3892MPFE-1#TRPBF

Mouser Part No
584-C3892MPFE-1TRPBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$32.82

Min.: 2,000
Mult.: 2,000

Reel: 2,000

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3892MPUH-2#TRPBF
Analog Devices
2,500: $33.47
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3892MPUH-2#TRPBF

Mouser Part No
584-C3892MPUH-2TRPBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$33.47

Min.: 2,500
Mult.: 2,500

Reel: 2,500

Switching Voltage Regulators 60V L IQ, 3x Out, Buck/Buck/Boost Sync C

LTC3899MPUHF#TRPBF
Analog Devices
2,500: $32.41
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3899MPUHF#TRPBF

Mouser Part No
584-C3899MPUHFTRPBF

Switching Voltage Regulators 60V L IQ, 3x Out, Buck/Buck/Boost Sync C

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$32.41

Min.: 2,500
Mult.: 2,500

Reel: 2,500

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3890EGN-3#PBF
Analog Devices
1: $15.22
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3890EGN-3#PBF

Mouser Part No
584-LTC3890EGN-3#PBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

$15.22

$11.94

$11.46

$10.09

$9.59

Min.: 1
Mult.: 1

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

LTC3890HUH#TRPBF
Analog Devices
2,500: $12.61
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
LTC3890HUH#TRPBF

Mouser Part No
584-LTC3890HUH#TRPBF

Switching Voltage Regulators 60V L IQ, 2x, 2-PhSync Buck DC/DC Cntr

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$12.61

Min.: 2,500
Mult.: 2,500

Reel: 2,500