MAX1971EEE+

Voltage - Output (Min/Fixed):	1.2V (1.5V, 1.8V, 2.5V, 3.3V)
Base Part Number:	MAX1971
Supplier Device Package:	16-QSOP
Package / Case:	16-SSOP (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	700kHz
Current - Output:	750mA
Voltage - Output (Max):	5.5V
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	2.6V
Number of Outputs:	2
Output Type:	Adjustable (Programmable)
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tube

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MAX1971EEE+ Application Field and Working PrincipleIntroductionThe MAX1971EEE+ is a workhorse integrated DC-DC switching regulator from Maxim Integrated that offers outstanding power efficiency for applications. It is one of the best-performing DC-DC switching regulator solutions in the industry, offering excellent noise immunity, high power efficiency, and low voltage dropout. The MAX1971EEE+ is a versatile solution suitable for many applications, with a range of adjustable current and voltage limits. This article will discuss the application field and working principle of the MAX1971EEE+. Application FieldThe MAX1971EEE+ is an ideal choice for applications where high power efficiency is a priority. It features a range of adjustable current and voltage limits that make it suitable for applications such as automotive, industrial, and consumer electronics. The MAX1971EEE+ can be used in high power applications that require high efficiency and reliable operation, such as high-voltage DC power systems and telecom power supplies. The MAX1971EEE+ is also suitable for low power applications such as handheld devices and portable electronics.Working PrincipleThe MAX1971EEE+ is a DC-DC switching regulator that uses an internal current-mode PWM controller to regulate the output voltage of the regulator. It draws power from a DC power source and then converts it from a low voltage to a higher output voltage, resulting in a regulated output voltage. The MAX1971EEE+ can be configured to operate in step-up, step-down, or boost-buck mode depending on the application.In step-up mode, the MAX1971EEE+ converts the input voltage to a higher output voltage by using an internal MOSFET switch to switch on and off at very high frequencies. The resulting current ripple creates an inductive kick, which is converted to a higher output voltage. In step-down mode, the MAX1971EEE+ uses an internal MOSFET switch to switch on and off at very high frequencies. The resulting current ripple creates an inductive kick, which is converted to a filtered output voltage. The output voltage is then regulated by an internal PWM controller to ensure the output voltage is held at the desired level. In boost-buck mode, the MAX1971EEE+ uses both the step-up and step-down modes to create a higher output voltage than the input voltage. This mode is usually used in applications that require high voltage output.The MAX1971EEE+ offers a range of adjustable current and voltage limits, allowing designers to tailor the regulator’s parameters to their application’s specific requirements. The MAX1971EEE+ also features enhanced noise immunity and high power efficiency.ConclusionThe MAX1971EEE+ is a versatile and reliable DC-DC switching regulator from Maxim Integrated that offers outstanding power efficiency for applications. It can be used in a range of applications, including high power, low power, and high voltage applications. The MAX1971EEE+ features adjustable current and voltage limits, superior noise immunity, and excellent power efficiency, making it an ideal choice for many applications.

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