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 (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Mounting Style
Package / Case
Topology
Output Voltage
Output Current
Number of Outputs
Quiescent Current
Switching Frequency
Minimum Operating Temperature
Maximum Operating Temperature
Series
Packaging
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 Buck 500 mV to 5.4 V 30 A 1 Output 20 mA 1 MHz - 40 C + 105 C LTC3880 Tube
Analog Devices Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D
Datasheet
603In Stock
366Expected 2026-04-09
Min.: 1
Mult.: 1

SMD/SMT QFN-40 Buck 500 mV to 5.25 V 40 A 1 Output 32 mA 1.25 MHz - 40 C + 125 C LTC3882 Tube
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 Buck 500 mV to 5.4 V 30 A 1 Output 20 mA 1 MHz - 40 C + 105 C LTC3880 Tube
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 Buck 500 mV to 5.4 V 30 A 1 Output 20 mA 1 MHz - 40 C + 125 C LTC3880 Tube
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 Buck 500 mV to 5.4 V 30 A 1 Output 1 MHz - 40 C + 125 C LTC3880 Tube
Analog Devices Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D
Datasheet
59In Stock
122Expected 2026-05-27
Min.: 1
Mult.: 1

SMD/SMT QFN-40 Buck 500 mV to 5.25 V 40 A 1 Output 1.25 MHz - 40 C + 125 C LTC3882 Tube
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 Buck 500 mV to 5.25 V 40 A 1 Output 1.25 MHz - 40 C + 125 C LTC3882-1 Tube
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 Buck 500 mV to 5.25 V 40 A 1 Output 1.25 MHz - 40 C + 125 C LTC3882-1 Tube
Analog Devices Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

SMD/SMT QFN-40 Buck 500 mV to 5.4 V 30 A 1 Output 1 MHz - 40 C + 105 C LTC3880 Reel
Analog Devices Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

SMD/SMT QFN-40 Buck 500 mV to 5.4 V 30 A 1 Output 1 MHz - 40 C + 125 C LTC3880 Reel
Analog Devices Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

SMD/SMT QFN-40 Buck 500 mV to 5.25 V 40 A 1 Output 1.25 MHz - 40 C + 125 C LTC3882-1 Reel
Analog Devices Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

SMD/SMT QFN-40 Buck 500 mV to 5.4 V 30 A 1 Output 1 MHz - 40 C + 105 C LTC3880 Reel
Analog Devices Switching Voltage Regulators 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

SMD/SMT QFN-40 Buck 500 mV to 5.4 V 30 A 1 Output 1 MHz - 40 C + 125 C LTC3880 Reel
Analog Devices Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

SMD/SMT QFN-40 Buck 500 mV to 5.25 V 40 A 1 Output 1.25 MHz - 40 C + 125 C LTC3882 Reel
Analog Devices Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D
Datasheet
Non-Stocked Lead-Time 13 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

SMD/SMT QFN-40 Buck 500 mV to 5.25 V 40 A 1 Output 1.25 MHz - 40 C + 125 C LTC3882-1 Reel
Analog Devices Switching Voltage Regulators 2x Out PolyPhBuck DC/DC V Mode Cntr w/ D
Datasheet
Non-Stocked Lead-Time 13 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

SMD/SMT QFN-40 Buck 500 mV to 5.25 V 40 A 1 Output 1.25 MHz - 40 C + 125 C LTC3882 Reel