MAX638ACSA+T

Obsolete

Analog Devices Inc./Maxim Integrated

5V ADJUSTABLE, CMOS, STEP-DOWN SWITCHING REGULATOR

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MAX638ACSA+T

Obsolete

Analog Devices Inc./Maxim Integrated

5V ADJUSTABLE, CMOS, STEP-DOWN SWITCHING REGULATOR

Find alt

Alpha

Description Specifications Series Pricing CAD Documents

Description

General part information

MAX638 Series

The MAX638 was introduced in 1996. It was considered state of the art for many years and is still available for sale.For a list of more recent products, view ourlatest switching regulators.

Technical Specifications

Parameters and characteristics for this part

Specification	MAX638ACSA+T

Frequency - Switching	65 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature (Max)	70 °C
Operating Temperature (Min)	0 °C
Output Configuration	Positive
Output Type	Adjustable (Fixed)
Package Length	0.154 in
Package Name	8-SOIC
Package Width	3.9 mm
Synchronous Rectifier	No
Topology	Buck
Voltage - Input (Max)	16.5 V
Voltage - Input (Min)	2.2 V
Voltage - Output (Fixed Options)	5V
Voltage - Output (Max)	16.5 V
Voltage - Output (Min)	1.31 V

MAX638 Series

5V Adjustable, CMOS, Step-Down Switching Regulator

Part	Synchronous Rectifier	Voltage - Input (Min)	Voltage - Output (Fixed Options)	Voltage - Output (Min)	Output Type	Topology	Function	Output Configuration	Voltage - Input (Max)	Voltage - Output (Max)	Mounting Type	Number of Outputs	Operating Temperature (Min)	Operating Temperature (Max)	Frequency - Switching	Package Length	Package Name	Package Width	Current - Output
Analog Devices Inc./Maxim Integrated MAX638ACSA	No	2.2 V	5V	1.31 V	Adjustable (Fixed)	Buck	Step-Down	Positive	16.5 V	16.5 V	Surface Mount	1	0 °C	70 °C	65 kHz	0.154 in	8-SOIC	3.9 mm
Analog Devices Inc./Maxim Integrated MAX638AEPA+	No	2.2 V	5V	1.31 V	Adjustable (Fixed)	Buck	Step-Down	Positive	16.5 V	16.5 V	Through Hole	1	-40 °C	85 °C	65 kHz	0.3 in	8-DIP 8-PDIP	7.62 mm
Analog Devices Inc./Maxim Integrated MAX638AESA-TG068	No	2.2 V	5V	1.31 V	Adjustable (Fixed)	Buck	Step-Down	Positive	16.5 V	16.5 V	Surface Mount	1	-40 °C	85 °C	65 kHz	0.154 in	8-SOIC	3.9 mm
Analog Devices Inc./Maxim Integrated MAX638ACSA+T	No	2.2 V	5V	1.31 V	Adjustable (Fixed)	Buck	Step-Down	Positive	16.5 V	16.5 V	Surface Mount	1	0 °C	70 °C	65 kHz	0.154 in	8-SOIC	3.9 mm
Analog Devices Inc./Maxim Integrated MAX638BCPA	No	2.2 V	5V	1.31 V	Adjustable (Fixed)	Buck	Step-Down	Positive	16.5 V	16.5 V	Through Hole	1	0 °C	70 °C	65 kHz	0.3 in	8-DIP 8-PDIP	7.62 mm	525 mA
Analog Devices Inc./Maxim Integrated MAX638ACSA+	No	2.2 V	5V	1.31 V	Adjustable (Fixed)	Buck	Step-Down	Positive	16.5 V	16.5 V	Surface Mount	1	0 °C	70 °C	65 kHz	0.154 in	8-SOIC	3.9 mm
Analog Devices Inc./Maxim Integrated MAX638AMJA	No	2.2 V	5V	1.31 V	Adjustable (Fixed)	Buck	Step-Down	Positive	16.5 V	16.5 V	Through Hole	1	-55 °C	125 °C	65 kHz	0.3 in	8-CDIP 8-CERDIP	7.62 mm
Analog Devices Inc./Maxim Integrated MAX638AESA+	No	2.2 V	5V	1.31 V	Adjustable (Fixed)	Buck	Step-Down	Positive	16.5 V	16.5 V	Surface Mount	1	-40 °C	85 °C	65 kHz	0.154 in	8-SOIC	3.9 mm
Analog Devices Inc./Maxim Integrated MAX638ACPA+	No	2.2 V	5V	1.31 V	Adjustable (Fixed)	Buck	Step-Down	Positive	16.5 V	16.5 V	Through Hole	1	0 °C	70 °C	65 kHz	0.3 in	8-DIP 8-PDIP	7.62 mm
Analog Devices Inc./Maxim Integrated MAX638AESA-T	No	2.2 V	5V	1.31 V	Adjustable (Fixed)	Buck	Step-Down	Positive	16.5 V	16.5 V	Surface Mount	1	-40 °C	85 °C	65 kHz	0.154 in	8-SOIC	3.9 mm

Pricing

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

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Datasheet

MAX638ACSA+T | Datasheet

MAX638 Reliability Data

Package Drawing - Small-Outline IC, Narrow (0.15in)