MAX4168EPD

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The MAX4168EPD is an ultra-low power, low drop-out (LDO), linear voltage regulator with a monostable delay-on-enable (500us typical). It is designed to convert supplies of up to 18V into a regulated output of 1.8V and is ideal for powering embedded devices in energy-constrained, sensor-based and wearables applications. Featuring an ultralow quiescent current of 50 nA, the MAX4168EPD delivers 2 to 6mA of output current with over-temperature and current-limiting protection.

The MAX4168EPD offers a fast transient response and low output noise, providing stable supply voltages for microprocessors, memory ICs and many other applications. It also features a programmable soft-start/enable delay, allowing the regulator to start up and shut down in a controlled manner. With its extremely low quiescent current, wide input voltage range and small 3x3mm package, the MAX4168EPD is a versatile solution for power management in battery-powered and batteryless applications.

The MAX4168EPD is a linear voltage regulator which consists of an internal error amplifier, a reference voltage source, a current source, an output stage and a control block. The MAX4168EPD combines the high performance of a low-dropout regulator and the flexibility of a precision instrumentation amplifier in one product. The internal error amplifier amplifies the difference between the reference voltage and the feedback voltage of the regulator to provide a stable output voltage. The reference voltage is an internal reference voltage provided by the MAX4168EPD which is kept at a constant level. The feedback voltage is the voltage which is measured at the output of the regulator and is compared to the reference voltage. The error amplifier amplifies the difference between the reference voltage and the feedback voltage and feeds this information to the output stage. The output stage is the part of the MAX4168EPD which delivers the output current. It is controlled by the error amplifier and the control block. The control block is responsible for controlling the enable/disable feature, soft-start/shutdown and over-current/over-temperature protection.

The MAX4168EPD is suitable for a wide range of applications in the field of instrumentation, OP Amps, buffer amps and battery management. It is ideal for powering embedded devices such as microcontrollers and memory ICs in energy-constrained and sensor-based applications. The low output noise, fast transient response and wide input voltage range make the MAX4168EPD a versatile solution for power management in battery-powered and batteryless applications.

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