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 (THB) Filter the results in the table by unit price based on your quantity.
Qty. RoHS Mounting Style
Package/Case
Output Voltage
Analog Devices Switching Controllers 60V 2x Out Buck Cntr w/ Dig Pwr S M
Datasheet
6,897In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-52 500 mV to 13.8 V
Analog Devices Switching Controllers 60V Dual Step-Down Controller with DPSM
Datasheet
630In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-52 1 V to 40 V
Analog Devices Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D
Datasheet
129In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-48 500 mV to 5.5 V
Analog Devices Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr
Datasheet
122In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-40 500 mV to 5.5 V
Analog Devices Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M
Datasheet
93In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 500 mV to 5.4 V
Analog Devices Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D
Datasheet
97In Stock
Min.: 1
Mult.: 1

SMD/SMT GQFN-48 500 mV to 5.5 V
Analog Devices Switching Controllers Dual Output 8-Phase Step-Down DC/DC Cont
Datasheet
730In Stock
630Expected 6/1/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-52 300 mV to 3.45 V
Analog Devices Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr
Datasheet
184In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-40 500 mV to 5.4 V
Analog Devices Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D
Datasheet
121In Stock
Min.: 1
Mult.: 1

SMD/SMT GQFN-48 500 mV to 5.5 V
Analog Devices Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr
Datasheet
122In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-40 500 mV to 5.5 V
Analog Devices Switching Controllers 60V Dual Step-Down Controller with DPSM
Datasheet
90In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-52 1 V to 40 V
Analog Devices Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D
Datasheet
603In Stock
366Expected 4/9/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-40 500 mV to 5.25 V
Analog Devices Switching Controllers 60V 2x Out Buck Cntr w/ Dig Pwr S M
Datasheet
45In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-52 500 mV to 13.8 V
Analog Devices Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr
Datasheet
49In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-40 500 mV to 5.4 V
Analog Devices Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr
Datasheet
72In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-40 500 mV to 5.4 V
Analog Devices Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr
Datasheet
68In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-40 500 mV to 5.4 V
Analog Devices Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D
Datasheet
59In Stock
122Expected 5/27/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-40 500 mV to 5.25 V
Analog Devices Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D
Datasheet
61In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-40 500 mV to 5.25 V
Analog Devices Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D
Datasheet
80In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-48 500 mV to 5.5 V
Analog Devices Switching Controllers 60V 2x Out Buck Cntr w/ Dig Pwr S M
Datasheet
45In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-52 500 mV to 13.8 V
Analog Devices Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr
Datasheet
60In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-40 500 mV to 5.5 V
Analog Devices Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D
Datasheet
17In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-40 500 mV to 5.25 V
Analog Devices Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M
Datasheet
3In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 500 mV to 5.4 V
Analog Devices Switching Controllers 1x PhBuck DC/DC Cntr w/ Dig Pwr S M
Datasheet
35In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 500 mV to 5.4 V
Analog Devices Switching Controllers 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr
Datasheet
122Expected 8/26/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-40 500 mV to 5.5 V