MAX5035DASA+

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The MAX5035DASA+ is a synchronous buck regulator that operates from a 2.7V to 15V input voltage range. The device is a step-down converter that delivers an adjustable output voltage from 0.6V to 5.5V. The regulator offers an integrated FET, with an adjustable switching frequency from 200kHz to 2MHz, power-good indication and thermal-overload protection. The device offers an adjustable DC load-regulation accuracy of 1.5%, a low-ripple mode up to 1.7%, and a low-noise mode of up to 1.3%. Maximum output current is 5A. It is designed to deliver a continuous power supply with a fast transient response, while maintaining the highest efficiency. This regulator is primarily designed for portable devices, such as digital cameras, video players, cameras, cell phones and other electronic products.

MAX5035DASA+ regulates the output voltage of the load in two different ways: first, by regulating the voltage across a voltage regulator, and secondly, by regulating the current at the output stage. When the load current exceeds the reference current, the voltage regulator will reduce the voltage by reducing the output voltage. When the current is less than the reference current, the voltage regulator will increase the output voltage. When the load current is between the reference current, the voltage regulator maintains the output voltage steady.

The MAX5035DASA+ offers a good high-frequency noise performance. The device features the input ripple level of 97mV, the high-frequency noise level per bit of 35uV, and the low-frequency noise level of 40dB at 500Hz. This regulator provides up to 5mV of output tracking accuracy. The device also includes a 3rd harmonic distortion below 2%.

The MAX5035DASA+ also includes a power-save feature that reduces the output current consumption when the load current decreases to the reference current level. This feature can help to improve the efficiency and save power when the device is in standby mode. The power save feature also helps to reduce in-rush current when the device is initially powered-up.

MAX5035DASA+ has a wide operating temperature range of -40°C to +125°C and is suitable for applications which require high temperature stability and reliability. The device also offers a fast transient response time of 8μs and a start-up time of 10μs. It is also designed to limit the in-rush current, making the regulator suitable for applications with high loads. The ESD protection exceeds IEC 61000-4-2 and ISO 10605 requirements.

The MAX5035DASA+ regulator offers an easy design and implementation. The regulator is designed with an exposed pad, providing a direct connection to the ground pins. This helps to reduce possible parasitic resonances and inductances. The device also includes an adjustable soft-start function, which can help to reduce the inrush current at turn-on. Additionally, the MAX5035DASA+ has thermal shutdown, internal soft start, power-good indication and overcurrent protection functions that help to ensure safety and reliability.

With its wide input and output voltage ranges, fast transient response times and high stability, the MAX5035DASA+ is suitable for a wide range of applications such as cell phones, digital cameras, video players, laptop computers and more. As a DC/DC switching regulator, the MAX5035DASA+ offers an adjustable output voltage and an adjustable switching frequency, making it a good choice for applications requiring both high efficiency and smaller form factor.

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