MAX25255AFDB/VY+T

Active

Analog Devices Inc./Maxim Integrated

DUAL 36V INPUT VOLTAGE, 8A SYNCHRONOUS BUCK CONVERTERS WITH MULTIPHASE CAPABILITY AND ASIL B SAFETY LEVEL

Find alt

Alpha

MAX25255AFDB/VY+T

Active

Analog Devices Inc./Maxim Integrated

DUAL 36V INPUT VOLTAGE, 8A SYNCHRONOUS BUCK CONVERTERS WITH MULTIPHASE CAPABILITY AND ASIL B SAFETY LEVEL

Find alt

Alpha

Description Specifications Series Pricing CAD Documents

Description

General part information

MAX25255 Series

TheMAX25254/MAX25255 are small, synchronous dual buck converters with integrated high-side and lowside switches. The ICs are designed to deliver up to 8A per channel with input voltages from 3V to 36V while using only 12μA quiescent current at no load. Voltage quality can be monitored by observing the PGOOD signals. The MAX25254/MAX25255 can regulate the output voltage in the dropout region by running at 99% of the duty cycle, making them ideal for automotive and industrial applications.The MAX25254/MAX25255 offer two fixed output voltages of 5V and 3.3V. Four fixed frequency options allow for small external components and reduced output ripple, and also guarantee no AM interference. The MAX25254/MAX25255 can enter skip mode at light loads with ultra-low quiescent current of 12μA at no load. The MAX25254/MAX25255 can be ordered with spread spectrum enabled for optimum EMI performance.Two buck converters within the MAX25254D and MAX25255D can be configured for dual-phase operation with up to 16A output load capability. Furthermore, the MAX25254D/MAX25255D and the MAX25254Q/MAX25255Q can be used in parallel to provide quad-phase operation that supports up to 32A (max) output current.The MAX25254/MAX25255 are available in a small, 4.50mm x 5.75mm, 23-pin FC2QFN package and use very few external components.ApplicationsFront-End Power Supply for Head UnitsASIL ApplicationsGeneral-Purpose Dual Buck ConvertersTelematics ModulesFront Camera Power

Technical Specifications

Parameters and characteristics for this part

Specification	MAX25255AFDB/VY+T

Current - Output (Max)	8 A
Current - Output (Min)	8 A
Frequency - Switching	400 kHz
Function	Step-Down
Grade	Automotive
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Fixed
Package / Case	23-PowerWFQFN
Package Length	4.5 mm
Package Name	23-FC2QFN
Package Width	5.75 mm
Qualification	AEC-Q100
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Input (Max)	36 V
Voltage - Input (Min)	3 V
Voltage - Output (Fixed)	5 V
Voltage - Output (Min)	3.3 V

MAX25255 Series

Part	Function	Voltage - Output (Fixed)	Voltage - Output (Min)	Number of Outputs	Output Configuration	Mounting Type	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Input (Max)	Output Type	Package / Case	Current - Output (Max)	Current - Output (Min)	Frequency - Switching	Grade	Package Name	Package Width	Package Length	Topology	Synchronous Rectifier	Qualification	Voltage - Input (Min)
Analog Devices Inc./Maxim Integrated MAX25255DAFDG/VY+T	Step-Down	5 V	5 V	2	Positive	Surface Mount	125 °C	-40 °C	36 V	Fixed	23-PowerWFQFN	6 A	6 A	2 MHz	Automotive	23-FC2QFN	5.75 mm	4.5 mm	Buck	Yes	AEC-Q100	3 V
Analog Devices Inc./Maxim Integrated MAX25255DAFDA/VY+	Step-Down	3.3 V	3.3 V	2	Positive	Surface Mount	125 °C	-40 °C	36 V	Fixed	23-PowerWFQFN	6 A	6 A	2 MHz		23-FC2QFN	5.75 mm	4.5 mm	Buck	Yes		3 V
Analog Devices Inc./Maxim Integrated MAX25255AFDB/VY+T	Step-Down	5 V	3.3 V	2	Positive	Surface Mount	125 °C	-40 °C	36 V	Fixed	23-PowerWFQFN	8 A	8 A	400 kHz	Automotive	23-FC2QFN	5.75 mm	4.5 mm	Buck	Yes	AEC-Q100	3 V
Analog Devices Inc./Maxim Integrated MAX25255DAFDA/VY+T	Step-Down	3.3 V	3.3 V	2	Positive	Surface Mount	125 °C	-40 °C	36 V	Fixed	23-PowerWFQFN	6 A	6 A	2 MHz	Automotive	23-FC2QFN	5.75 mm	4.5 mm	Buck	Yes	AEC-Q100	3 V
Analog Devices Inc./Maxim Integrated MAX25255AFDA/VY+	Step-Down	5 V	3.3 V	2	Positive	Surface Mount	125 °C	-40 °C	36 V	Fixed	23-PowerWFQFN	6 A	6 A	2 MHz		23-FC2QFN	5.75 mm	4.5 mm	Buck	Yes		3 V
Analog Devices Inc./Maxim Integrated MAX25255AFDA/VY+T	Step-Down	5 V	3.3 V	2	Positive	Surface Mount	125 °C	-40 °C	36 V	Fixed	23-PowerWFQFN	6 A	6 A	2 MHz	Automotive	23-FC2QFN	5.75 mm	4.5 mm	Buck	Yes	AEC-Q100	3 V
Analog Devices Inc./Maxim Integrated MAX25255AFDB/VY+	Step-Down	5 V	3.3 V	2	Positive	Surface Mount	125 °C	-40 °C	36 V	Fixed	23-PowerWFQFN	8 A	8 A	400 kHz		23-FC2QFN	5.75 mm	4.5 mm	Buck	Yes		3 V
Analog Devices Inc./Maxim Integrated MAX25255DAFDG/VY+	Step-Down	5 V	5 V	2	Positive	Surface Mount	125 °C	-40 °C	36 V	Fixed	23-PowerWFQFN	6 A	6 A	2 MHz	Automotive	23-FC2QFN	5.75 mm	4.5 mm	Buck	Yes	AEC-Q100	3 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Create a free account to access distributor pricing data.

CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Datasheet

MAX25254/MAX25255: Dual 36V Input Voltage, 8A Synchronous Buck Converters with Multiphase Capability and ASIL B Data Sheet (Rev.10)

Package Drawing - 23-LFCSP_SS-4.5X4.5X0.75