Voltage Regulators & Voltage Controllers

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LTC388x Step-Down Controllers

Analog Devices Inc. LTC388x Step-Down Controllers are dual PolyPhase DC-DC synchronous step-down switching regulator controllers. Analog Devices LTC388x devices have an I²C-based PMBus-compliant serial interface. These controllers employ a constant-frequency, current-mode architecture with high-voltage input and output capability. The devices also have a programmable loop compensation and are supported by the LTpowerPlay™ software development tool with a graphical user interface (GUI).

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Types of Voltage Regulators & Voltage Controllers

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Part #

Switching Controllers 60V 2x Out Buck Cntr w/ Dig Pwr S M

LTC3886EUKG#PBF
Analog Devices
1: $31.31
6,897In Stock

Mfr. Part #
LTC3886EUKG#PBF

Mouser Part #
584-LTC3886EUKG#PBF

Analog Devices

Switching Controllers 60V 2x Out Buck Cntr w/ Dig Pwr S M

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Datasheet

6,897In Stock

$31.31

$25.93

$24.85

$21.90

Quote

Min.: 1
Mult.: 1

SMD/SMT

QFN-52

500 mV to 13.8 V

15 A

Switching Controllers 60V Dual Step-Down Controller with DPSM

LTC3889EUKG#PBF
Analog Devices
1: $36.43
660In Stock

Mfr. Part #
LTC3889EUKG#PBF

Mouser Part #
584-LTC3889EUKG#PBF

Analog Devices

Switching Controllers 60V Dual Step-Down Controller with DPSM

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Datasheet

660In Stock

$36.43

$28.49

$27.22

$24.33

Quote

Min.: 1
Mult.: 1

SMD/SMT

QFN-52

1 V to 40 V

20 A

Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D

LTC3884EUK#PBF
Analog Devices
1: $31.31
129In Stock

Mfr. Part #
LTC3884EUK#PBF

Mouser Part #
584-LTC3884EUK#PBF

Analog Devices

Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D

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Datasheet

129In Stock

$31.31

$25.93

$24.85

$21.90

Quote

Min.: 1
Mult.: 1

SMD/SMT

QFN-48

500 mV to 5.5 V

30 A

Switching Controllers 60V 2x Out Buck Cntr w/ Dig Pwr S M

LTC3886EUKG-1#PBF
Analog Devices
1: $31.31
45In Stock

Mfr. Part #
LTC3886EUKG-1#PBF

Mouser Part #
584-3886EUKG-1#PBF

Analog Devices

Switching Controllers 60V 2x Out Buck Cntr w/ Dig Pwr S M

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Datasheet

45In Stock

$31.31

$25.93

$24.85

$21.90

Min.: 1
Mult.: 1

SMD/SMT

QFN-52

500 mV to 13.8 V

100 A

Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr

LTC3887EUJ-2#PBF
Analog Devices
1: $27.43
122In Stock

Mfr. Part #
LTC3887EUJ-2#PBF

Mouser Part #
584-LTC3887EUJ-2#PBF

Analog Devices

Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr

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Datasheet

122In Stock

$27.43

$22.17

$21.24

$18.71

Quote

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

500 mV to 5.5 V

20 A

Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M

LTC3883IUH#WPBF
Analog Devices
1: $27.75
93In Stock

Mfr. Part #
LTC3883IUH#WPBF

Mouser Part #
584-LTC3883IUH#WPBF

Analog Devices

Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M

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Datasheet

93In Stock

$27.75

$22.43

$21.52

$18.94

Quote

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

500 mV to 5.4 V

30 A

Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D

LTC3884IRHE#WPBF
Analog Devices
1: $31.93
97In Stock

Mfr. Part #
LTC3884IRHE#WPBF

Mouser Part #
584-LTC3884IRHE#WPBF

Analog Devices

Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D

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Datasheet

97In Stock

$31.93

$26.43

$25.34

$22.33

Quote

Min.: 1
Mult.: 1

SMD/SMT

GQFN-48

500 mV to 5.5 V

30 A

Switching Controllers Dual Output 8-Phase Step-Down DC/DC Cont

LTC3888IUHG-1#PBF
Analog Devices
1: $30.62
745In Stock
630Expected 2026-06-01

Mfr. Part #
LTC3888IUHG-1#PBF

Mouser Part #
584-3888IUHG-1#PBF

Analog Devices

Switching Controllers Dual Output 8-Phase Step-Down DC/DC Cont

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Datasheet

745In Stock

630Expected 2026-06-01

$30.62

$25.36

$24.31

$21.41

Min.: 1
Mult.: 1

SMD/SMT

QFN-52

300 mV to 3.45 V

400 A

Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr

LTC3880EUJ#PBF
Analog Devices
1: $27.12
184In Stock

Mfr. Part #
LTC3880EUJ#PBF

Mouser Part #
584-LTC3880EUJ#PBF

Analog Devices

Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr

Learn More

Datasheet

184In Stock

$27.12

$21.92

$21.01

$18.51

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

500 mV to 5.4 V

30 A

Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D

LTC3884IRHE-1#PBF
Analog Devices
1: $31.10
121In Stock

Mfr. Part #
LTC3884IRHE-1#PBF

Mouser Part #
584-LTC3884IRHE1PBF

Analog Devices

Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D

Learn More

Datasheet

121In Stock

$31.10

$25.76

$24.68

$21.75

Min.: 1
Mult.: 1

SMD/SMT

GQFN-48

500 mV to 5.5 V

30 A

Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr

LTC3887IUJ#PBF
Analog Devices
1: $31.07
122In Stock

Mfr. Part #
LTC3887IUJ#PBF

Mouser Part #
584-LTC3887IUJ#PBF

Analog Devices

Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr

Learn More

Datasheet

122In Stock

$31.07

$25.73

$24.65

$21.72

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

500 mV to 5.5 V

30 A

Switching Controllers 60V Dual Step-Down Controller with DPSM

LTC3889IUKG#PBF
Analog Devices
1: $43.69
90In Stock

Mfr. Part #
LTC3889IUKG#PBF

Mouser Part #
584-LTC3889IUKG#PBF

Analog Devices

Switching Controllers 60V Dual Step-Down Controller with DPSM

Learn More

Datasheet

90In Stock

$43.69

$34.18

$32.65

$29.20

Min.: 1
Mult.: 1

SMD/SMT

QFN-52

1 V to 40 V

20 A

Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D

LTC3882EUJ#PBF
Analog Devices
1: $27.12
603In Stock
366Expected 2026-03-19

Mfr. Part #
LTC3882EUJ#PBF

Mouser Part #
584-LTC3882EUJ#PBF

Analog Devices

Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D

Learn More

Datasheet

603In Stock

366Expected 2026-03-19

$27.12

$21.92

$21.01

$18.51

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

500 mV to 5.25 V

40 A

Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr

LTC3880EUJ-1#PBF
Analog Devices
1: $27.12
49In Stock

Mfr. Part #
LTC3880EUJ-1#PBF

Mouser Part #
584-LTC3880EUJ-1#PBF

Analog Devices

Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr

Learn More

Datasheet

49In Stock

$27.12

$21.92

$21.01

$18.51

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

500 mV to 5.4 V

30 A

Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr

LTC3880IUJ#PBF
Analog Devices
1: $30.62
72In Stock

Mfr. Part #
LTC3880IUJ#PBF

Mouser Part #
584-LTC3880IUJ#PBF

Analog Devices

Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr

Learn More

Datasheet

72In Stock

$30.62

$25.36

$24.31

$21.41

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

500 mV to 5.4 V

30 A

Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr

LTC3880IUJ-1#PBF
Analog Devices
1: $30.62
68In Stock

Mfr. Part #
LTC3880IUJ-1#PBF

Mouser Part #
584-LTC3880IUJ-1#PBF

Analog Devices

Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr

Learn More

Datasheet

68In Stock

$30.62

$25.36

$24.31

$21.41

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

500 mV to 5.4 V

30 A

Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D

LTC3882IUJ#PBF
Analog Devices
1: $30.62
59In Stock
122Expected 2026-05-19

Mfr. Part #
LTC3882IUJ#PBF

Mouser Part #
584-LTC3882IUJ#PBF

Analog Devices

Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D

Learn More

Datasheet

59In Stock

122Expected 2026-05-19

$30.62

$25.36

$24.31

$21.41

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

500 mV to 5.25 V

40 A

Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D

LTC3882IUJ-1#PBF
Analog Devices
1: $30.62
61In Stock

Mfr. Part #
LTC3882IUJ-1#PBF

Mouser Part #
584-LTC3882IUJ-1#PBF

Analog Devices

Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D

Learn More

Datasheet

61In Stock

$30.62

$25.36

$24.31

$21.41

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

500 mV to 5.25 V

40 A

Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D

LTC3884IUK#PBF
Analog Devices
1: $31.10
80In Stock

Mfr. Part #
LTC3884IUK#PBF

Mouser Part #
584-LTC3884IUK#PBF

Analog Devices

Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D

Learn More

Datasheet

80In Stock

$31.10

$25.76

$24.68

$21.75

Min.: 1
Mult.: 1

SMD/SMT

QFN-48

500 mV to 5.5 V

30 A

Switching Controllers 60V 2x Out Buck Cntr w/ Dig Pwr S M

LTC3886IUKG#PBF
Analog Devices
1: $33.51
45In Stock

Mfr. Part #
LTC3886IUKG#PBF

Mouser Part #
584-LTC3886IUKG#PBF

Analog Devices

Switching Controllers 60V 2x Out Buck Cntr w/ Dig Pwr S M

Learn More

Datasheet

45In Stock

$33.51

$28.35

$27.18

$23.95

Min.: 1
Mult.: 1

SMD/SMT

QFN-52

500 mV to 13.8 V

15 A

Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr

LTC3887EUJ#PBF
Analog Devices
1: $27.72
60In Stock

Mfr. Part #
LTC3887EUJ#PBF

Mouser Part #
584-LTC3887EUJ#PBF

Analog Devices

Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr

Learn More

Datasheet

60In Stock

$27.72

$22.40

$21.47

$18.91

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

500 mV to 5.5 V

30 A

Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D

LTC3882EUJ-1#PBF
Analog Devices
1: $27.12
17In Stock

Mfr. Part #
LTC3882EUJ-1#PBF

Mouser Part #
584-LTC3882EUJ-1#PBF

Analog Devices

Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D

Learn More

Datasheet

17In Stock

$27.12

$21.92

$21.01

$18.51

Min.: 1
Mult.: 1

SMD/SMT

QFN-40

500 mV to 5.25 V

40 A

Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M

LTC3883IUH-1#WPBF
Analog Devices
1: $27.75
3In Stock

Mfr. Part #
LTC3883IUH-1#WPBF

Mouser Part #
584-3883IUH-1#WPBF

Analog Devices

Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M

Learn More

Datasheet

3In Stock

$27.75

$22.43

$21.51

$18.94

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

500 mV to 5.4 V

30 A

Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M

LTC3883EUH#WPBF
Analog Devices
1: $26.17
35In Stock

Mfr. Part #
LTC3883EUH#WPBF

Mouser Part #
584-LTC3883EUH#WPBF

Analog Devices

Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M

Learn More

Datasheet

35In Stock

$26.17

$20.54

$19.69

$17.35

$16.50

Min.: 1
Mult.: 1

SMD/SMT

QFN-32

500 mV to 5.4 V

30 A

Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D

LTC3884ERHE-1#PBF
Analog Devices
1: $31.31
61Expected 2026-05-01

Mfr. Part #
LTC3884ERHE-1#PBF

Mouser Part #
584-LTC3884ERHE1PBF

Analog Devices

Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D

Learn More

Datasheet

61Expected 2026-05-01

$31.31

$25.93

$24.85

$21.90

Min.: 1
Mult.: 1

SMD/SMT

GQFN-48

500 mV to 5.5 V

30 A

LTC388x Step-Down Controllers

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