Voltage Regulators & Voltage Controllers

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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 L IQ, 60V Sync Buck Cntr

LTC3891EFE#PBF
Analog Devices
1: $12.90
1,197In Stock

Mfr. Part No.
LTC3891EFE#PBF

Mouser Part No
584-LTC3891EFE#PBF

Analog Devices

Switching Voltage Regulators L IQ, 60V Sync Buck Cntr

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Datasheet

1,197In Stock

$12.90

$9.80

$9.39

$8.27

$7.87

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-20

800 mV to 24 V

Switching Voltage Regulators L IQ, 60V Sync Buck Cntr

LTC3891IFE#PBF
Analog Devices
1: $14.72
977In Stock

Mfr. Part No.
LTC3891IFE#PBF

Mouser Part No
584-LTC3891IFE#PBF

Analog Devices

Switching Voltage Regulators L IQ, 60V Sync Buck Cntr

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Datasheet

977In Stock

$14.72

$11.18

$10.72

$9.44

$8.98

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-20

800 mV to 24 V

Switching Voltage Regulators L IQ, 60V Sync Buck Cntr

LTC3891IUDC#TRPBF
Analog Devices
1: $14.00
1,023In Stock

Mfr. Part No.
LTC3891IUDC#TRPBF

Mouser Part No
584-LTC3891IUDCTRPBF

Analog Devices

Switching Voltage Regulators L IQ, 60V Sync Buck Cntr

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Datasheet

1,023In Stock

Cut Tape

$14.00

$10.64

$10.20

$8.98

$8.54

Reel

$8.54

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

SMD/SMT

QFN-20

800 mV to 24 V

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

LTC3892EUH-2#PBF
Analog Devices
1: $16.81
491In 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

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Datasheet

491In Stock

$16.81

$13.19

$12.64

$11.14

$10.59

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

800 mV to 59.4 V

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

LTC3892IUH-2#PBF
Analog Devices
1: $18.28
235In 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

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Datasheet

235In Stock

$18.28

$14.77

$14.16

$12.47

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

800 mV to 59.4 V

Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr

LTC3894EFE#TRPBF
Analog Devices
1: $9.91
986In Stock

Mfr. Part No.
LTC3894EFE#TRPBF

Mouser Part No
584-LTC3894EFE#TRPBF

Analog Devices

Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr

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Datasheet

986In Stock

Cut Tape

$9.91

$7.66

$7.30

$6.34

$6.06

Reel

$6.06

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

SMD/SMT

TSSOP-20-16

800 mV to 60 V

Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr

LTC3894HFE#PBF
Analog Devices
1: $12.11
491In Stock

Mfr. Part No.
LTC3894HFE#PBF

Mouser Part No
584-LTC3894HFE#PBF

Analog Devices

Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr

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Datasheet

491In Stock

$12.11

$9.42

$8.98

$7.80

$7.45

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-20

800 mV to 60 V

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

LTC3895EFE#PBF
Analog Devices
1: $16.01
620In 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

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Datasheet

620In Stock

$16.01

$12.57

$12.05

$10.61

$10.09

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-38

800 mV to 60 V

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

LTC3895EFE#TRPBF
Analog Devices
1: $16.01
1,883In 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

Datasheet

1,883In Stock

Cut Tape

$16.01

$12.57

$12.05

$10.61

$10.09

Reel

$10.09

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

SMD/SMT

TSSOP-EP-38

800 mV to 60 V

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

LTC3896EFE#PBF
Analog Devices
1: $16.01
192In Stock

Mfr. Part No.
LTC3896EFE#PBF

Mouser Part No
584-LTC3896EFE#PBF

Analog Devices

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

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Datasheet

192In Stock

$16.01

$12.57

$12.05

$10.61

$10.09

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-38

800 mV to 60 V

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

LTC3892EUH#PBF
Analog Devices
1: $16.81
435In Stock
438On Order

Mfr. Part No.
LTC3892EUH#PBF

Mouser Part No
584-LTC3892EUH#PBF

Analog Devices

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

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Datasheet

435In Stock

438On Order

$16.81

$13.19

$12.64

$11.14

$10.59

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

800 mV to 60 V

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

LTC3890EUH-2#PBF
Analog Devices
1: $15.64
60In 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

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Datasheet

60In Stock

$15.64

$12.27

$11.77

$10.37

$9.86

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

800 mV to 24 V

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

LTC3890HGN-3#PBF
Analog Devices
1: $18.06
29In 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

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Datasheet

29In Stock

$18.06

$14.59

$13.99

$12.32

Min.: 1
Mult.: 1

SMD/SMT

SSOP-28

800 mV to 24 V

Switching Voltage Regulators L IQ, 60V Sync Buck Cntr

LTC3891HFE#PBF
Analog Devices
1: $15.22
152In Stock

Mfr. Part No.
LTC3891HFE#PBF

Mouser Part No
584-LTC3891HFE#PBF

Analog Devices

Switching Voltage Regulators L IQ, 60V Sync Buck Cntr

Learn More

Datasheet

152In Stock

$15.22

$11.94

$11.45

$10.09

$9.59

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-20

800 mV to 24 V

Switching Voltage Regulators L IQ, 60V Sync Buck Cntr

LTC3891HUDC#PBF
Analog Devices
1: $15.00
105In 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

Datasheet

105In Stock

$15.00

$11.40

$10.93

$9.62

$9.15

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

800 mV to 24 V

Switching Voltage Regulators L IQ, 60V Sync Buck Cntr

LTC3891IUDC#PBF
Analog Devices
1: $14.00
172In Stock

Mfr. Part No.
LTC3891IUDC#PBF

Mouser Part No
584-LTC3891IUDC#PBF

Analog Devices

Switching Voltage Regulators L IQ, 60V Sync Buck Cntr

Learn More

Datasheet

172In Stock

$14.00

$10.64

$10.20

$8.98

$8.54

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

800 mV to 24 V

Switching Voltage Regulators L IQ, 60V Sync Buck Cntr

LTC3891MPUDC#PBF
Analog Devices
1: $30.39
33In Stock

Mfr. Part No.
LTC3891MPUDC#PBF

Mouser Part No
584-LTC3891MPUDC#PBF

Analog Devices

Switching Voltage Regulators L IQ, 60V Sync Buck Cntr

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Datasheet

33In Stock

$30.39

$25.68

$24.53

$21.93

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

800 mV to 24 V

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

LTC3892EFE-1#PBF
Analog Devices
1: $16.41
51In 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

Datasheet

51In Stock

$16.41

$12.88

$12.35

$10.88

$10.34

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-28

800 mV to 59.4 V

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

LTC3892HFE-1#PBF
Analog Devices
1: $19.19
61In 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

Datasheet

61In Stock

$19.19

$15.51

$14.87

$13.10

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-28

800 mV to 59.4 V

Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr

LTC3894IFE#PBF
Analog Devices
1: $11.19
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

Datasheet

74In Stock

$11.19

$8.70

$8.30

$7.20

$6.88

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-20-16

800 mV to 60 V

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

LTC3896IFE#PBF
Analog Devices
1: $17.51
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

Datasheet

31In Stock

$17.51

$14.14

$13.56

$11.95

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-38

800 mV to 60 V

Switching Voltage Regulators PolyPhase Synchronous Boost Controller with Input/Output Protection

LTC3897EUHF#PBF
Analog Devices
1: $18.16
11In Stock
52Expected 24/02/2026

Mfr. Part No.
LTC3897EUHF#PBF

Mouser Part No
584-LTC3897EUHF#PBF

Analog Devices

Switching Voltage Regulators PolyPhase Synchronous Boost Controller with Input/Output Protection

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Datasheet

11In Stock

52Expected 24/02/2026

$18.16

$14.67

$14.06

$12.39

Min.: 1
Mult.: 1

SMD/SMT

QFN-38

60 V

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

LTC3899IFE#PBF
Analog Devices
1: $18.64
91In Stock

Mfr. Part No.
LTC3899IFE#PBF

Mouser Part No
584-LTC3899IFE#PBF

Analog Devices

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

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Datasheet

91In Stock

$18.64

$15.06

$14.44

$12.72

Min.: 1
Mult.: 1

SMD/SMT

TSSOP-EP-38

800 mV to 60 V

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

LTC3899IUHF#PBF
Analog Devices
1: $18.06
39In Stock

Mfr. Part No.
LTC3899IUHF#PBF

Mouser Part No
584-LTC3899IUHF#PBF

Analog Devices

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

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Datasheet

39In Stock

$18.06

$14.59

$13.99

$12.32

Min.: 1
Mult.: 1

SMD/SMT

QFN-38

800 mV to 60 V

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

LTC3892HUH-2#PBF
Analog Devices
1: $19.11
53In 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

Datasheet

53In Stock

$19.11

$15.82

$15.17

$13.36

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

800 mV to 59.4 V

LTC389x Synchronous DC/DC Controllers

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