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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package/Case	Output Voltage
Switching Controllers 60V 2x Out Buck Cntr w/ Dig Pwr S M LTC3886EUKG#PBF Analog Devices 1: $20.81 5,724In Stock	Mfr. Part No. LTC3886EUKG#PBF Mouser Part No 584-LTC3886EUKG#PBF	Analog Devices	Switching Controllers 60V 2x Out Buck Cntr w/ Dig Pwr S M Learn More about Analog Devices adi ltc388x controllers	Datasheet	5,724In Stock	$20.81 $16.53 $15.00 $14.19 View $13.75 $13.53	Min.: 1 Mult.: 1 Max.: 4,579	SMD/SMT	QFN-52	500 mV to 13.8 V
Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D LTC3884IRHE-1#PBF Analog Devices 1: $20.18 121In Stock	Mfr. Part No. LTC3884IRHE-1#PBF Mouser Part No 584-LTC3884IRHE1PBF	Analog Devices	Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D Learn More about Analog Devices adi ltc388x controllers	Datasheet	121In Stock	$20.18 $16.00 $14.95	Min.: 1 Mult.: 1 Max.: 96	SMD/SMT	GQFN-48	500 mV to 5.5 V
Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr LTC3880IUJ-1#PBF Analog Devices 1: $19.88 68In Stock	Mfr. Part No. LTC3880IUJ-1#PBF Mouser Part No 584-LTC3880IUJ-1#PBF	Analog Devices	Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr Learn More about Analog Devices adi ltc388x controllers	Datasheet	68In Stock	$19.88 $15.76 $14.73 $13.58 View $12.96 $12.73	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	500 mV to 5.4 V
Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M LTC3883IUH#WPBF Analog Devices 1: $18.09 93In Stock	Mfr. Part No. LTC3883IUH#WPBF Mouser Part No 584-LTC3883IUH#WPBF	Analog Devices	Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M Learn More about Analog Devices adi ltc388x controllers	Datasheet	93In Stock	$18.09 $13.94 $12.45 $12.03 View $11.58 $11.37 $11.36	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	500 mV to 5.4 V
Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr LTC3887EUJ-2#PBF Analog Devices 1: $18.02 122In Stock	Mfr. Part No. LTC3887EUJ-2#PBF Mouser Part No 584-LTC3887EUJ-2#PBF	Analog Devices	Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr Learn More about Analog Devices adi ltc388x controllers	Datasheet	122In Stock	$18.02 $14.10 $13.13	Min.: 1 Mult.: 1 Max.: 97	SMD/SMT	QFN-40	500 mV to 5.5 V
Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D LTC3882EUJ#PBF Analog Devices 1: $17.97 768In Stock	Mfr. Part No. LTC3882EUJ#PBF Mouser Part No 584-LTC3882EUJ#PBF	Analog Devices	Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D Learn More about Analog Devices adi ltc388x controllers	Datasheet	768In Stock	$17.97 $14.24 $13.31 $12.28 View $11.71 $11.50	Min.: 1 Mult.: 1 Max.: 614	SMD/SMT	QFN-40	500 mV to 5.25 V
Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr LTC3887EUJ-1#PBF Analog Devices 1: $18.63 122In Stock	Mfr. Part No. LTC3887EUJ-1#PBF Mouser Part No 584-LTC3887EUJ-1#PBF	Analog Devices	Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr Learn More about Analog Devices adi ltc388x controllers	Datasheet	122In Stock	$18.63 $14.69 $13.37	Min.: 1 Mult.: 1 Max.: 97	SMD/SMT	QFN-40	500 mV to 5.5 V
Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M LTC3883EUH#WPBF Analog Devices 1: $16.83 35In Stock	Mfr. Part No. LTC3883EUH#WPBF Mouser Part No 584-LTC3883EUH#WPBF	Analog Devices	Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M Learn More about Analog Devices adi ltc388x controllers	Datasheet	35In Stock	$16.83 $13.34 $12.47 $11.32 View $10.93 $10.75 $10.74	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	500 mV to 5.4 V
Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D LTC3884IUK#PBF Analog Devices 1: $21.11 108In Stock	Mfr. Part No. LTC3884IUK#PBF Mouser Part No 584-LTC3884IUK#PBF	Analog Devices	Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D Learn More about Analog Devices adi ltc388x controllers	Datasheet	108In Stock	$21.11 $16.73 $15.64	Min.: 1 Mult.: 1 Max.: 86	SMD/SMT	QFN-48	500 mV to 5.5 V
Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M LTC3883IUH-1#WPBF Analog Devices 1: $18.37 3In Stock	Mfr. Part No. LTC3883IUH-1#WPBF Mouser Part No 584-3883IUH-1#WPBF	Analog Devices	Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M Learn More about Analog Devices adi ltc388x controllers	Datasheet	3In Stock	$18.37 $14.56 $13.61 $12.34 View $11.92 $11.72	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	500 mV to 5.4 V
Switching Controllers Dual Output 8-Phase Step-Down DC/DC Cont LTC3888IUHG-1#PBF Analog Devices 1: $20.77 47In Stock 2,025On Order	Mfr. Part No. LTC3888IUHG-1#PBF Mouser Part No 584-3888IUHG-1#PBF	Analog Devices	Switching Controllers Dual Output 8-Phase Step-Down DC/DC Cont Learn More about Analog Devices adi ltc388x controllers	Datasheet	47In Stock 2,025On Order On Order Ship Dates Mfr. No: LTC3888IUHG-1#PBF Stock: 47 Can Dispatch Immediately On Order: 1,485 Expected 19/11/2026 540 Expected 20/11/2026 Factory Lead Time: Unverified	$20.77 $16.46 $15.39 $14.20	Min.: 1 Mult.: 1 Max.: 207	SMD/SMT	QFN-52	300 mV to 3.45 V
Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr LTC3880EUJ-1#PBF Analog Devices 1: $18.26 39In Stock	Mfr. Part No. LTC3880EUJ-1#PBF Mouser Part No 584-LTC3880EUJ-1#PBF	Analog Devices	Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr Learn More about Analog Devices adi ltc388x controllers	Datasheet	39In Stock	$18.26 $14.39 $13.10 $12.30 View $12.03 $11.53 $11.39 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	500 mV to 5.4 V
Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr LTC3880IUJ#PBF Analog Devices 1: $20.77 1In Stock	Mfr. Part No. LTC3880IUJ#PBF Mouser Part No 584-LTC3880IUJ#PBF	Analog Devices	Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr Learn More about Analog Devices adi ltc388x controllers	Datasheet	1In Stock	$20.77 $16.46 $15.39 $14.20 View $13.38 $13.14 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	500 mV to 5.4 V
Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D LTC3882IUJ-1#PBF Analog Devices 1: $20.58 22In Stock	Mfr. Part No. LTC3882IUJ-1#PBF Mouser Part No 584-LTC3882IUJ-1#PBF	Analog Devices	Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D Learn More about Analog Devices adi ltc388x controllers	Datasheet	22In Stock	$20.58 $16.36 $14.95 $14.09 View $13.50 $13.25 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	500 mV to 5.25 V
Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D LTC3884EUK#PBF Analog Devices 1: $21.24 1In Stock	Mfr. Part No. LTC3884EUK#PBF Mouser Part No 584-LTC3884EUK#PBF	Analog Devices	Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D Learn More about Analog Devices adi ltc388x controllers	Datasheet	1In Stock	$21.24 $16.83 $15.23 $14.39 View $13.85 $13.60	Min.: 1 Mult.: 1	SMD/SMT	QFN-48	500 mV to 5.5 V
Switching Controllers 60V 2x Out Buck Cntr w/ Dig Pwr S M LTC3886IUKG#PBF Analog Devices 1: $22.65 70In Stock	Mfr. Part No. LTC3886IUKG#PBF Mouser Part No 584-LTC3886IUKG#PBF	Analog Devices	Switching Controllers 60V 2x Out Buck Cntr w/ Dig Pwr S M Learn More about Analog Devices adi ltc388x controllers	Datasheet	70In Stock	$22.65 $18.10 $16.97 $15.71 View $14.98 $14.62 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-52	500 mV to 13.8 V
Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr LTC3887IUJ#PBF Analog Devices 1: $21.06 44In Stock	Mfr. Part No. LTC3887IUJ#PBF Mouser Part No 584-LTC3887IUJ#PBF	Analog Devices	Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr Learn More about Analog Devices adi ltc388x controllers	Datasheet	44In Stock	$21.06 $16.69 $15.60 $14.39 View $13.57 $13.31	Min.: 1 Mult.: 1	SMD/SMT	QFN-40	500 mV to 5.5 V
Switching Controllers 60V Dual Step-Down Controller with DPSM LTC3889IUKG#PBF Analog Devices 1: $29.59 44In Stock	Mfr. Part No. LTC3889IUKG#PBF Mouser Part No 584-LTC3889IUKG#PBF	Analog Devices	Switching Controllers 60V Dual Step-Down Controller with DPSM Learn More about Analog Devices adi ltc388x controllers	Datasheet	44In Stock	$29.59 $23.66 $22.18 $20.54 View $19.76 $19.30	Min.: 1 Mult.: 1	SMD/SMT	QFN-52	1 V to 40 V

LTC388x Step-Down Controllers

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