MAX25232ATCA/V+T

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Analog Devices Inc./Maxim Integrated

36V, 3A MINI BUCK CONVERTER WITH 3.5UA IQ

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MAX25232ATCA/V+T

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Analog Devices Inc./Maxim Integrated

36V, 3A MINI BUCK CONVERTER WITH 3.5UA IQ

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Description Specifications Series Pricing CAD Documents

Description

General part information

MAX25232 Series

The MAX25232 is a small, synchronous buck converter with integrated high-side and low-side switches. The device is designed to deliver up to 3A with 3.5V to 36V input voltages while using only 3.5µA quiescent current at no load.The device provides an accurate output voltage of ±2% in FPWM mode within the normal 6V to 18V operation input range. With 65ns minimum on-time capability, the converter is capable of large input-to-output conversion ratios. Voltage quality can be monitored by observing the PGOOD signal. The device can operate in dropout by running at 99% duty cycle, making it ideal for automotive and industrial applications. The device offers two fixed 5V and 3.3V output voltages. In addition, the device can be configured for 1V to 10V output voltages using an external resistor-divider. Frequency is internally fixed at 2.1MHz, which allows for small external components and reduced output ripple, and guarantees no AM interference. A 400kHz option is also offered to provide minimum switching losses and maximum efficiency. The device automatically enters skip mode at light loads with ultra-low 3.5µA quiescent current at no load. The device offers pin-enabled spread-spectrum frequency modulation designed to minimize EMI-radiated emissions due to the modulation frequency.The MAX25232 variants are available in a small (3mm x 3mm), 12-pin, side-wettable TDFN package with an exposed pad, and require very few external components.ApplicationsAutomotiveHigh-Voltage DC-DC ConvertersIndustrial

Technical Specifications

Parameters and characteristics for this part

Specification	MAX25232ATCA/V+T

Current - Output	3 A
Frequency - Switching	2.1 MHz
Function	Step-Down
Grade	Automotive
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Fixed
Package / Case	12-WFDFN Exposed Pad
Package Length	3 mm
Package Name	12-TDFN
Package Width	3 mm
Qualification	AEC-Q100
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Input (Max)	36 V
Voltage - Input (Min)	3.5 V
Voltage - Output (Min/Fixed)	5 V

MAX25232 Series

36V, 3A Mini Buck Converter with 3.5uA IQ

Part	Number of Outputs	Qualification	Grade	Output Type	Package / Case	Voltage - Input (Min)	Function	Voltage - Input (Max)	Package Width	Package Name	Package Length	Output Configuration	Operating Temperature (Max)	Operating Temperature (Min)	Voltage - Output (Min/Fixed)	Topology	Current - Output	Mounting Type	Synchronous Rectifier	Frequency - Switching	Voltage - Output (Max)
Analog Devices Inc./Maxim Integrated MAX25232ATCB/V+T	1	AEC-Q100	Automotive	Fixed	12-WFDFN Exposed Pad	3.5 V	Step-Down	36 V	3 mm	12-TDFN	3 mm	Positive	125 °C	-40 °C	3.3 V	Buck	3 A	Surface Mount	Yes	2.1 MHz
Analog Devices Inc./Maxim Integrated MAX25232ATCG/V+	1	AEC-Q100	Automotive	Adjustable	12-WFDFN Exposed Pad	3.5 V	Step-Down	36 V	3 mm	12-TDFN	3 mm	Positive	125 °C	-40 °C	3 V	Buck	3 A	Surface Mount	Yes	2.1 MHz	10 V
Analog Devices Inc./Maxim Integrated MAX25232ATCA/V+T	1	AEC-Q100	Automotive	Fixed	12-WFDFN Exposed Pad	3.5 V	Step-Down	36 V	3 mm	12-TDFN	3 mm	Positive	125 °C	-40 °C	5 V	Buck	3 A	Surface Mount	Yes	2.1 MHz
Analog Devices Inc./Maxim Integrated MAX25232ATCG/V+T	1	AEC-Q100	Automotive	Adjustable	12-WFDFN Exposed Pad	3.5 V	Step-Down	36 V	3 mm	12-TDFN	3 mm	Positive	125 °C	-40 °C	3 V	Buck	3 A	Surface Mount	Yes	2.1 MHz	10 V
Analog Devices Inc./Maxim Integrated MAX25232ATCD/V+	1	AEC-Q100	Automotive	Fixed	12-WFDFN Exposed Pad	3.5 V	Step-Down	36 V	3 mm	12-TDFN	3 mm	Positive	125 °C	-40 °C	3.3 V	Buck	3 A	Surface Mount	Yes	2.1 MHz
Analog Devices Inc./Maxim Integrated MAX25232ATCD/V+T	1	AEC-Q100	Automotive	Fixed	12-WFDFN Exposed Pad	3.5 V	Step-Down	36 V	3 mm	12-TDFN	3 mm	Positive	125 °C	-40 °C	5 V	Buck	3 A	Surface Mount	Yes	400 kHz
Analog Devices Inc./Maxim Integrated MAX25232ATCF/V+	1	AEC-Q100	Automotive	Adjustable	12-WFDFN Exposed Pad	3.5 V	Step-Down	36 V	3 mm	12-TDFN	3 mm	Positive	125 °C	-40 °C	3 V	Buck	3 A	Surface Mount	Yes	2.1 MHz	10 V
Analog Devices Inc./Maxim Integrated MAX25232ATCH/V+T	1	AEC-Q100	Automotive	Fixed	12-WFDFN Exposed Pad	3.5 V	Step-Down	36 V	3 mm	12-TDFN	3 mm	Positive	125 °C	-40 °C	4 V	Buck	3 A	Surface Mount	Yes	2.1 MHz
Analog Devices Inc./Maxim Integrated MAX25232ATCB/V+	1	AEC-Q100	Automotive	Fixed	12-WFDFN Exposed Pad	3.5 V	Step-Down	36 V	3 mm	12-TDFN	3 mm	Positive	125 °C	-40 °C	3.3 V	Buck	3 A	Surface Mount	Yes	2.1 MHz
Analog Devices Inc./Maxim Integrated MAX25232ATCF/V+T	1	AEC-Q100	Automotive	Adjustable	12-WFDFN Exposed Pad	3.5 V	Step-Down	36 V	3 mm	12-TDFN	3 mm	Positive	125 °C	-40 °C	3 V	Buck	3 A	Surface Mount	Yes	400 kHz	10 V

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

MAX25232ATCA/V+T | Datasheet

MAX25232: 36V, 3A Mini Buck Converter with 3.5uA IQData Sheet (Rev.3)