MCP1754ST-3302E/MC

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Linear regulators are widely used in applications, such as radio transmitters, DVD players, laptop computers and many other electronic devices requiring a regulated voltage of a specific level and minimum ripple. The MCP1754ST-3302E/MC is the popular linear regulator, particularly in the PMIC (Power Management IC) space. This device enables the design of small, low-power, and low-noise voltage regulation systems with minimal time and effort.

The MCP1754ST-3302E/MC is a 217 mV dropout, low-input/output voltage linear regulator. This voltage regulator can provide up to 1.5A of output current in the adjustable version or up to 500mA of fixed output current in the fixed voltage version. It is designed for general-purpose applications at low cost and efficiency with low dropout voltage and low quiescent current. This device is offered in 6-pin SOT-23 packages and includes protection features such as thermal shutdown protection, output current limit protection, and reverse-battery protection.

The MCP1754ST-3302E/MC is a low dropout voltage regulator suitable for low voltage (1.8 V) applications. It features a low input voltage of 1.8 V and a low quiescent current of 35 µA, which makes it well suited for battery-powered systems. The output voltage is adjustable by an external resistor divider and can be set between 0.9V and 10V. It has a ±2% reference accuracy and a 200 mV step size for the adjustable version. For the fixed voltage version, the output voltage is factory-set at 3.3V or 5.0V.

The working principle of the MCP1754ST-3302E/MC is quite similar to other linear regulators. The input voltage is regulated and monitored by an internal comparator, which is compared to an internal voltage reference based on the external divider. The output voltage is then adjusted accordingly. The internal comparator will inject current into the error amplifier in order to maintain the output voltage at a constant level. If the output voltage is too high, the error amplifier will draw current from the output to reduce the output voltage, and if the output voltage is too low, the error amplifier will inject current into the output to increase the output voltage.

The MCP1754ST-3302E/MC is also equipped with a wide range of protective features. It offers over-temperature protection, over-current protection, reverse battery protection, and short-circuit protection. The output current limit is set at 500mA for the adjustable version and at 300mA for the fixed voltage version. This device also has a shutdown mode, which can be used to disable the device when it is not in use, thus greatly reducing its energy consumption.

The MCP1754ST-3302E/MC is an efficient and cost-effective linear regulator suitable for many low-power and portable applications. Its low dropout voltage and low quiescent current make it particularly well suited for battery-powered systems, while its wide range of protection features makes it reliable and safe to use. With its adjustable output voltage range and easy external resistor divider set up, this linear regulator offers flexibility and easy customization, making it a great choice for a wide range of applications.

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