MAX8640YELT16+T

Voltage - Input (Max):	5.5V
Supplier Device Package:	6-uDFN (1.5x1.0)
Package / Case:	6-WFDFN
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	2MHz
Current - Output:	500mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.6V
Series:	--
Voltage - Input (Min):	2.7V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The MAX8640YELT16+T is a Push-Pull Step-Down ( Buck Regulator ) DC-DC switching regulator IC and belongs to the family of DC-DC regulators. These DC-DC regulators are often used in applications where post-regulation of a DC or AC supply is required. The IC performs the necessary regulation and provides a clean and steady output voltage.The MAX8640YELT16+T is a low-power regulator IC, with a maximum output current of only 2.6 A. Its wide input voltage range (1.8V to 15 V) and adjustable output voltage, allows it to be used in various applications, most notably those in the automotive, computer, and telecom industries.

Application field

The MAX8640YELT16+T is primarily used in automotive and computer applications, where short-term load restrictions can override any output voltage regulation. This is often the case with microcontrollers, which can handle only low current loads. Additionally, the output voltage is adjustable, allowing it to be used to power any type of microcontroller, or any other device requiring a regulated output voltage. The MAX8640YELT16+T is also used in telecom and networking applications. By allowing for a wide input voltage range, it can easily handle switching between various communication protocols and other signal qualities. Its low output current makes it ideal for use in DSL, POTS, and digital communication.

Working Principle

The MAX8640YELT16+T works on the principle of push-pull step-down DC-DC switching regulator. This works by drawing a constant current through the control terminal to the primary side of the power transformer. The output voltage of the regulator is achieved by varying the duty cycle of the switching signal applied to the control terminal.When the duty cycle is low, the current through the primary side of the transformer will be minimum, and the output voltage of the regulator will be at its minimum value. Similarly, when the duty cycle is high, the current through the primary side of the transformer will be at its maximum, resulting in the maximum output voltage. The MAX8640YELT16+T includes advanced protection features that effectively prevent voltage overload. It also supports a wide input voltage range, which makes it ideal for use in applications where a wide variation in input voltage is expected.

Conclusion

The MAX8640YELT16+T is a well-suited DC/DC regulator for applications requiring a low output current, where wide input voltage ranges and short-term load restrictions are expected. The push-pull step-down DC-DC switching regulator functions by drawing a constant current through a control terminal to the primary side of the power transformer, and varying the duty-cycle to adjust the output voltage. It also provides advanced protection features, making it a safe and effective alternative for regulating DC sources.

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