LTC3374A Series

High Accuracy 8-Channel Parallelable 1A Buck DC/DCs

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

High Accuracy 8-Channel Parallelable 1A Buck DC/DCs

Part	Voltage - Input (Max) [Max]	Voltage - Output (Max) [Max]	Operating Temperature [Min]	Operating Temperature [Max]	Topology	Output Configuration	Number of Outputs	Package / Case	Output Type	Mounting Type	Supplier Device Package	Function	Frequency - Switching	Voltage - Input (Min) [Min]	Current - Output	Voltage - Output (Min/Fixed)	Package / Case
Analog Devices Inc./Maxim Integrated LTC3374AIUHF#TRPBF	5.5 V	5.5 V	-40 C	125 °C	Buck	Positive	8	38-WFQFN Exposed Pad	Adjustable	Surface Mount	38-QFN (5x7)	Step-Down	2 MHz	2.7 V	1 A	0.8 V
Analog Devices Inc./Maxim Integrated LTC3374AHFE#TRPBF	5.5 V	5.5 V	-40 °C	150 °C	Buck	Positive	8	38-TFSOP Exposed Pad	Adjustable	Surface Mount	38-TSSOP-EP	Step-Down	2 MHz	2.7 V	1 A	0.8 V	0.173 " 4.4 mm
Analog Devices Inc./Maxim Integrated LTC3374AIFE#PBF	5.5 V	5.5 V	-40 C	125 °C	Buck	Positive	8	38-TFSOP Exposed Pad	Adjustable	Surface Mount	38-TSSOP-EP	Step-Down	2 MHz	2.7 V	1 A	0.8 V	0.173 " 4.4 mm
Analog Devices Inc./Maxim Integrated LTC3374AHFE#PBF	5.5 V	5.5 V	-40 °C	150 °C	Buck	Positive	8	38-TFSOP Exposed Pad	Adjustable	Surface Mount	38-TSSOP-EP	Step-Down	2 MHz	2.7 V	1 A	0.8 V	0.173 " 4.4 mm
Analog Devices Inc./Maxim Integrated LTC3374AEFE#TRPBF	5.5 V	5.5 V	-40 C	125 °C	Buck	Positive	8	38-TFSOP Exposed Pad	Adjustable	Surface Mount	38-TSSOP-EP	Step-Down	2 MHz	2.7 V	1 A	0.8 V	0.173 " 4.4 mm
Analog Devices Inc./Maxim Integrated LTC3374AHUHF#TRPBF	5.5 V	5.5 V	-40 °C	150 °C	Buck	Positive	8	38-WFQFN Exposed Pad	Adjustable	Surface Mount	38-QFN (5x7)	Step-Down	2 MHz	2.7 V	1 A	0.8 V
Analog Devices Inc./Maxim Integrated LTC3374AIUHF#PBF	5.5 V	5.5 V	-40 C	125 °C	Buck	Positive	8	38-WFQFN Exposed Pad	Adjustable	Surface Mount	38-QFN (5x7)	Step-Down	2 MHz	2.7 V	1 A	0.8 V
Analog Devices Inc./Maxim Integrated LTC3374AEUHF#PBF	5.5 V	5.5 V	-40 C	125 °C	Buck	Positive	8	38-WFQFN Exposed Pad	Adjustable	Surface Mount	38-QFN (5x7)	Step-Down	2 MHz	2.7 V	1 A	0.8 V
Analog Devices Inc./Maxim Integrated LTC3374AEFE#PBF	5.5 V	5.5 V	-40 C	125 °C	Buck	Positive	8	38-TFSOP Exposed Pad	Adjustable	Surface Mount	38-TSSOP-EP	Step-Down	2 MHz	2.7 V	1 A	0.8 V	0.173 " 4.4 mm
Analog Devices Inc./Maxim Integrated LTC3374AHUHF#PBF	5.5 V	5.5 V	-40 °C	150 °C	Buck	Positive	8	38-WFQFN Exposed Pad	Adjustable	Surface Mount	38-QFN (5x7)	Step-Down	2 MHz	2.7 V	1 A	0.8 V

Catalog

High Accuracy 8-Channel Parallelable 1A Buck DC/DCs

Description

The LTC3374A is a multioutput power supply IC consisting of eight synchronous 1A buck converters, all powered from independent 2.25V to 5.5V input supplies. An upgraded pin-compatible version of the LTC3374, the LTC3374A, has higher efficiency, improved output voltage accuracy and an added overvoltage (OV) indicator.The DC/DCs may be used independently or in parallel to achieve higher output currents of up to 4A with a shared inductor. The common buck switching frequency may be programmed with an external resistor, synchronized to an external oscillator, or set to a default internal 2MHz clock. The operating mode for all DC/DCs may be programmed via the MODE pin.To reduce input noise the buck converters are phased in 90° steps. Precision enable pin thresholds simplify powerup sequencing. The LTC3374A is available in a 38-lead 5mm × 7mm QFN package as well as a 38-lead exposed pad TSSOP package.NOTESLTC3374LTC3374AHigher efficiency, improved output voltage accuracy and an added overvoltage (OV) indicatorAPPLICATIONSGeneral Purpose Multichannel Power SuppliesIndustrial/Automotive/Communications