MAX1976AETT250+

The MAX1976AETT250+ is a charge pump voltage regulator from Maxim Integrated, operating over a wide input voltage range of 2.7 - 5.5V. It is a Low Dropout (LDO) voltage converter, with a high power conversion efficiency of 96%, and an output current of up to 250mA. It is designed to be a highly integrated and cost-effective solution for applications requiring bias power regulation.

The MAX1976AETT250+ is suitable for a variety of applications, such as automotive electronics, medical systems, industrial automation, telecommunications devices, and portable electronic equipment. It is available in a compact SOT-23-6 surface-mount form factor.

The working principle of the MAX1976AETT250+ is based on charge pump technology. The charge pump operates by essentially charging and discharging capacitors in series, allowing it to step down a voltage more efficiently than a linear regulator. It is an efficient solution with a high input/output range, good transient response, and low quiescent current draw.

The internal circuitry of the MAX1976AETT250+ consists of a series of capacitors and switches, which are employed to store energy in order to transfer it across the load. A clock oscillator generates a pulse waveform, which controls the switching action of the internal switches, allowing it to operate as a charge pump. The charge pump works by increasing or decreasing the voltage to the output, depending on the load current.

The MAX1976AETT250+ includes a shutdown input pin, which can be used to enable or disable the regulator. This allows for the device to be put into a low-power mode when not in use. It also provides over-current protection, thermal overload protection, and reverse current protection, ensuring higher reliability and longer lifetime.

In summary, the MAX1976AETT250+ from Maxim Integrated is a high-efficiency and low-dropout voltage regulator ideal for applications where space is limited, and high efficiency and low power consumption are paramount. Its low quiescent current draw and full feature set make it a versatile and robust choice for regulatory and scan power integration.