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 (USD) 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 2x Out PolyPhBuck DC/DC Cntr w/ Dig Pwr
Datasheet
122Expected 24/06/2026
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
Non-Stocked Lead-Time 10 Weeks
Min.: 2,500
Mult.: 2,500
Reel: 2,500

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
Non-Stocked Lead-Time 10 Weeks
Min.: 73
Mult.: 73

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
Non-Stocked Lead-Time 10 Weeks
Min.: 2,500
Mult.: 2,500
Reel: 2,500

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
Non-Stocked Lead-Time 10 Weeks
Min.: 2,500
Mult.: 2,500
Reel: 2,500

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
Non-Stocked Lead-Time 10 Weeks
Min.: 2,500
Mult.: 2,500
Reel: 2,500

SMD/SMT QFN-32 500 mV to 5.4 V
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

SMD/SMT GQFN-48 500 mV to 5.5 V
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

SMD/SMT GQFN-48
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

SMD/SMT QFN-52 500 mV to 13.8 V
Analog Devices Switching Controllers 60V 2x Out Buck Cntr w/ Dig Pwr S M
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 1
Mult.: 1

SMD/SMT QFN-52 500 mV to 13.8 V
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

SMD/SMT QFN-52 500 mV to 13.8 V
Analog Devices Switching Controllers Dual Output 8-Phase Step-Down DC/DC Cont
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2,500
Mult.: 2,500
Reel: 2,500

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
Non-Stocked Lead-Time 10 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

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
Non-Stocked Lead-Time 10 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

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
Non-Stocked Lead-Time 10 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

SMD/SMT QFN-40 500 mV to 5.25 V
Analog Devices Switching Controllers 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-40 500 mV to 5.5 V
Analog Devices Switching Controllers 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-40 500 mV to 5.5 V
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-40 500 mV to 5.4 V
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-40 500 mV to 5.4 V
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-40 500 mV to 5.25 V
Analog Devices Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 1
Mult.: 1

SMD/SMT GQFN-48 500 mV to 5.5 V
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

SMD/SMT GQFN-48 500 mV to 5.5 V
Analog Devices Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 61
Mult.: 61

SMD/SMT GQFN-48
Analog Devices Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 61
Mult.: 61

SMD/SMT GQFN-48 500 mV to 5.5 V
Analog Devices Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

SMD/SMT QFN-48