MAX5035CUSA+T

Voltage - Output (Min/Fixed):	12V
Base Part Number:	MAX5035
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	125kHz
Current - Output:	1A
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	76V
Voltage - Input (Min):	7.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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The MAX5035CUSA+T is a multi-output step-down DC-to-DC switching regulator IC that provides several fixed-output voltages with a high efficiency over a wide input voltage range. MAX5035CUSA+T is one of the leading products in the line of DC-DC Switching Regulators and has long been known as an indispensable part of DC power management in electronic devices. It is also an ideal voltage regulator for supplying very high current output and providing multiple voltage sources in a small package.Applications of MAX5035CUSA+TThe MAX5035CUSA+T is suitable for many applications due to its robust performance and features. Among them, the most notable application include use in cellular base stations, multi-output laptops and tablets, white LEDs, LCD displays, servers and telecom power supplies.The circuitry of MAX5035CUSA+T provides multiple functions such as output voltage tracking, voltage and current monitoring, per-output sequencing, under-voltage and over-voltage protection. With these, it is the perfect choice for use in applications requiring multiple voltage and current outputs in a small package.Working PrincipleThe MAX5035CUSA+T is based on the SEPIC (Single Ended Primary Inductance Converter) topology. This topology is different from the traditional buck and boost regulator circuits, as it consists of a simple boost circuit connected to a buck converter. It produces an output voltage that is regulated between the minimum and maximum voltages possible regardless of the output current. In contrast, buck and boost regulators require external capacitors to maintain their stability, which can be expensive and consume large amounts of space.The circuitry of MAX5035CUSA+T implements the SEPIC topology in a synchronous rectified buck-boost converter, which combines the Low-Drop Out (LDO) Regulator and buck-boost regulator for improved system performance and efficiency with very low output ripple, superior transient response and high accuracy. The inductor in the circuit helps to minimize input ripple and the voltage divider helps to provide the isolating inductor with the reference voltage. The output capacitor and the current sense resistor filter out any high-frequency transient noise.ConclusionThe MAX5035CUSA+T DC-DC Switching Regulator is a state-of-the-art, high-efficiency device designed to provide multiple-voltage output in a small package within a wide input voltage range. It is suitable for applications such as cellular base stations, multi-output laptops and tablets, white LEDs, LCD displays, servers and telecom power supplies. Its SEPIC circuit topology and synchronous rectified buck-boost converter offers superior performance, efficiency and superior transient response with very low output ripple and high accuracy.

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