S6AP412A38GN1C000

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The S6AP412A38GN1C000 is an ultra-low quiescent current buck DC/DC converter from Tokyo-based Seiko-Epson, used in low-power applications like wearables, home automation, middleware (IoT) and smartphones. It is able to convert two-voltage input sources of 3.3V to 5.5V DC into an output voltage as adjustable from 0.6V to 3.3V, with a peak efficiency of 95%.

S6AP412A38GN1C000 belongs to PMIC - Voltage Regulators - DC DC Switching Regulators. It supports a constant current to quasi-constant voltage load. The chip is available in a 4mm * 4mm small package. It is also very low in quiescent current, with a fully-loaded quiescent current of below 2.5mA.

The converter features a synchronous rectifier with a fully-regulated 2.5V, 150mA switch current limit. It has a maximum output current of 150mA and can operate down to 0.7V input and 0.6V output feedback voltages. It also has a soft-start time with fixed Timeout and adjustable Soft-Start time.

S6AP412A38GN1C000 is an ideal choice for Wearable, Home Automation, Middleware (IoT), and Smartphone applications due to its ultra-low quiescent current and high peak efficiency. Its small form factor and high quality performance makes it popular in multiple fields.

As for its working principle, the S6AP412A38GN1C000 uses a buck DC/DC converter, which reduces the input voltage to a lower level suitable for the load. It uses an internal MOSFET in the buck arrangement, which is switched on and off to reduce the input voltage to the required output voltage. This is done by switching the MOSFET on and off periodically, thus changing the duty cycle of the output voltage. The duty cycle, in turn, dictates the level of output voltage. A low Duty cycle means a low output voltage, and a high duty cycle means a high output voltage.

The S6AP412A38GN1C000 is also equipped with an internal synchronous rectifier, which helps to reduce the power dissipation in the chip and the heat generated. The synchronous rectifier also helps to maintain the efficiency of the buck convertor by ensuring a 100% Duty cycle.

The converter also has a voltage feedback loop, which helps it maintain the output voltage. This voltage feedback loop takes the output voltage and compares it with the reference voltage and adjusts the duty cycle accordingly. This ensures that the output voltage remains stable regardless of the load and input voltage.

In conclusion, the S6AP412A38GN1C000 is an ultra-low quiescent current buck DC/DC converter, which is perfect for low-power applications like Wearables, Home Automation, Middleware (IoT) and Smartphone applications. Its small form factor and high quality performance makes it popular in many fields. Moreover, its synchronous rectifier and voltage feedback loop help to maintain the output voltage, ensuring a high efficiency.

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