MAX638ACSA+

Voltage - Output (Min/Fixed):	1.31V (5V)
Base Part Number:	MAX638
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	65kHz
Current - Output:	--
Voltage - Output (Max):	16.5V
Series:	--
Voltage - Input (Max):	16.5V
Voltage - Input (Min):	2.2V
Number of Outputs:	1
Output Type:	Adjustable (Fixed)
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tube

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The MAX638ACSA+ is a synchronous step-up DC-to-DC converter designed for powering portable applications from one or two alkaline or NiCd/NiMH battery sources. The MAX638ACSA+ converter provides 800mA of peak output current from an input voltage range of 2.5V to 5.5V. In addition to its high-efficiency, the MAX638ACSA+ provides excellent line and load regulation, making it an ideal choice for powering next-generation portable applications.In general, voltage regulators allow users to control the voltage output of their electrical circuits. This makes them essential components in any electronic device that needs reliable power. DC-to-DC switching regulators are a type of voltage regulator that steps up or steps down a voltage in order to maintain its regulated output. They feature high efficiency and require minimal external components, making them a popular choice for mobile applications.The MAX638ACSA+ is a synchronous step-up DC-to-DC converter designed for powering portable applications from one or two alkaline or NiCd/NiMH battery sources. It features a bidirectional hysteretic control architecture that eliminates the need for an external control loop. This architecture allows the converter to operate with high efficiency over a wide input voltage range. The MAX638ACSA+ also employs low-ripple spread-spectrum frequency modulation to reduce noise and optimize efficiency through reduced switching losses, making it an excellent choice for noise-sensitive applications.The MAX638ACSA+ offers a number of protection features to ensure safe operation, including thermal protection, overtemperature protection and soft-start. The device also features an output voltage adjustment range from 1.8V to 6V, allowing users to adjust the output voltage range to best suit their application’s needs. Additionally, the device features a power-save mode, which provides a means of reducing power consumption when the output is not in use. This makes the MAX638ACSA+ an ideal choice for powering next-generation portable applications.In summary, the MAX638ACSA+ is a high-efficiency synchronous step-up DC-to-DC converter designed for powering portable applications from one or two alkaline or NiCd/NiMH battery sources. It features a bidirectional hysteretic control architecture that eliminates the need for an external control loop, allowing for high efficiency. Additionally, it offers a number of protection features, adjustable output voltage range, and a power-save mode that provide users with the reliability, flexibility and efficiency they need for their application.

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