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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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Topology
Number of Outputs
Switching Frequency
Duty Cycle - Max
Output Voltage
Output Current
Minimum Operating Temperature
Maximum Operating Temperature
Mounting Style
Package/Case
Qualification
Packaging
Analog Devices Switching Controllers 60V 2x Out Buck Cntr w/ Dig Pwr S M
Datasheet
6.897In Stock
Min.: 1
Mult.: 1

Buck 1 Output 100 kHz to 750 kHz 500 mV to 13.8 V 15 A - 40 C + 125 C SMD/SMT QFN-52 Tube
Analog Devices Switching Controllers 60V Dual Step-Down Controller with DPSM
Datasheet
630In Stock
Min.: 1
Mult.: 1

Buck 2 Output 10 kHz to 400 kHz 1 V to 40 V 20 A - 40 C + 125 C SMD/SMT QFN-52 Tube
Analog Devices Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D
Datasheet
129In Stock
Min.: 1
Mult.: 1

Buck 1 Output 1 MHz 80 % 500 mV to 5.5 V 30 A - 40 C + 125 C SMD/SMT QFN-48 Tube
Analog Devices Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr
Datasheet
122In Stock
Min.: 1
Mult.: 1

Buck 1 Output 250 kHz to 1 MHz 50 % 500 mV to 5.5 V 20 A - 40 C + 125 C SMD/SMT QFN-40 Tube
Analog Devices Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M
Datasheet
93In Stock
Min.: 1
Mult.: 1

Buck 1 Output 400 kHz 500 mV to 5.4 V 30 A - 40 C + 125 C SMD/SMT QFN-32 AEC-Q100 Tube
Analog Devices Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D
Datasheet
97In Stock
Min.: 1
Mult.: 1

Buck 1 Output 1 MHz 80 % 500 mV to 5.5 V 30 A - 40 C + 125 C SMD/SMT GQFN-48 AEC-Q100 Tube
Analog Devices Switching Controllers Dual Output 8-Phase Step-Down DC/DC Cont
Datasheet
730In Stock
630Expected 6/1/2026
Min.: 1
Mult.: 1

Buck 2 Output 1 MHz 300 mV to 3.45 V 400 A - 40 C + 125 C SMD/SMT QFN-52 Tube
Analog Devices Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D
Datasheet
121In Stock
Min.: 1
Mult.: 1

Buck 1 Output 200 kHz to 1 MHz 500 mV to 5.5 V 30 A - 40 C + 125 C SMD/SMT GQFN-48 Tube
Analog Devices Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr
Datasheet
122In Stock
Min.: 1
Mult.: 1

Buck 1 Output 250 kHz to 1 MHz 50 % 500 mV to 5.5 V 30 A - 40 C + 125 C SMD/SMT QFN-40 Tube
Analog Devices Switching Controllers 60V Dual Step-Down Controller with DPSM
Datasheet
90In Stock
Min.: 1
Mult.: 1

Buck 2 Output 10 kHz to 400 kHz 1 V to 40 V 20 A - 40 C + 125 C SMD/SMT QFN-52 Tube
Analog Devices Switching Controllers 60V 2x Out Buck Cntr w/ Dig Pwr S M
Datasheet
45In Stock
Min.: 1
Mult.: 1

Buck 1 Output 100 kHz to 750 kHz 500 mV to 13.8 V 100 A - 40 C + 125 C SMD/SMT QFN-52 Tube
Analog Devices Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D
Datasheet
80In Stock
Min.: 1
Mult.: 1

Buck 1 Output 1 MHz 80 % 500 mV to 5.5 V 30 A - 40 C + 125 C SMD/SMT QFN-48 Tube
Analog Devices Switching Controllers 60V 2x Out Buck Cntr w/ Dig Pwr S M
Datasheet
45In Stock
Min.: 1
Mult.: 1

Buck 1 Output 100 kHz to 750 kHz 500 mV to 13.8 V 15 A - 40 C + 125 C SMD/SMT QFN-52 Tube
Analog Devices Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr
Datasheet
60In Stock
Min.: 1
Mult.: 1

Buck 1 Output 250 kHz to 1 MHz 50 % 500 mV to 5.5 V 30 A - 40 C + 125 C SMD/SMT QFN-40 Tube
Analog Devices Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M
Datasheet
3In Stock
Min.: 1
Mult.: 1

Buck 1 Output 250 kHz to 1 MHz 500 mV to 5.4 V 30 A - 40 C + 125 C SMD/SMT QFN-32 AEC-Q100 Tube
Analog Devices Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M
Datasheet
35In Stock
Min.: 1
Mult.: 1

Buck 1 Output 250 kHz to 1 MHz 500 mV to 5.4 V 30 A - 40 C + 105 C SMD/SMT QFN-32 AEC-Q100 Tube
Analog Devices Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr
Datasheet
122Expected 8/26/2026
Min.: 1
Mult.: 1

Buck 1 Output 250 kHz to 1 MHz 500 mV to 5.5 V 30 A - 40 C + 125 C SMD/SMT QFN-40 Tube
Analog Devices Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2.500
Mult.: 2.500
Reel: 2.500

Buck 1 Output 250 kHz to 1 MHz 500 mV to 5.4 V 30 A - 40 C + 105 C SMD/SMT QFN-32 AEC-Q100 Reel
Analog Devices Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 73
Mult.: 73

Buck 1 Output 250 kHz to 1 MHz 500 mV to 5.4 V 30 A - 40 C + 105 C SMD/SMT QFN-32 AEC-Q100 Tube
Analog Devices Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2.500
Mult.: 2.500
Reel: 2.500

Buck 1 Output 250 kHz to 1 MHz 500 mV to 5.4 V 30 A - 40 C + 105 C SMD/SMT QFN-32 AEC-Q100 Reel
Analog Devices Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2.500
Mult.: 2.500
Reel: 2.500

Buck 1 Output 250 kHz to 1 MHz 500 mV to 5.4 V 30 A - 40 C + 125 C SMD/SMT QFN-32 AEC-Q100 Reel
Analog Devices Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2.500
Mult.: 2.500
Reel: 2.500

Buck 1 Output 250 kHz to 1 MHz 500 mV to 5.4 V 30 A - 40 C + 125 C SMD/SMT QFN-32 AEC-Q100 Reel
Analog Devices Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2.500
Mult.: 2.500
Reel: 2.500

Buck 1 Output 200 kHz to 1 MHz 500 mV to 5.5 V 30 A - 40 C + 125 C SMD/SMT GQFN-48 AEC-Q100 Reel
Analog Devices Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2.500
Mult.: 2.500
Reel: 2.500

1 Output SMD/SMT GQFN-48 AEC-Q100 Reel
Analog Devices Switching Controllers 60V 2x Out Buck Cntr w/ Dig Pwr S M
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2.000
Mult.: 2.000
Reel: 2.000

Buck 1 Output 100 kHz to 750 kHz 500 mV to 13.8 V 100 A - 40 C + 125 C SMD/SMT QFN-52 Reel