SI9121DY-3-T1-E3

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The SI9121DY-3-T1-E3 voltage regulator is a device designed to maintain a constant supply of electricity without fluctuating on a range of input voltages. It is specifically designed for use in portable electronic devices and other similar small electronics requiring stable voltage. As a special purpose voltage regulator, the SI9121DY-3-T1-E3 offers an output voltage up to 3.3V, an input voltage range of 2.3V to 5.5V, and a power capability of 2W. The device boasts an ultra-low quiescent current of 0.9µA and thermal overload protection.

The SI9121DY-3-T1-E3 is implemented in applications such as mobile phones and other hand-held battery powered devices where, in order to extend the life of their batteries, stabilized voltage is required, allowing batteries to be recharged safely. Other applications that use the SI9121DY-3-T1-E3 voltage regulator are LCD displays, GPS receivers, and some embedded controllers. The SI9121DY-3-T1-E3 regulator also helps maintain the DC/DC converters in applications like smartphone chargers, wall adapters, and USB adapters.

The SI9121DY-3-T1-E3 voltage regulator can be used with a variety of logic levels, including -40V, -25V, 15V, and 20V. In addition, the device provides high-efficiency operation as well as protection against reverse currents, providing long-term reliability. The SI9121DY-3-T1-E3 also provides short-circuit protection and thermal overload protection.

The SI9121DY-3-T1-E3 voltage regulator is based on a hysteretic topology, which is a type of linear circuit architecture. It uses a pair of N-channel MOSFETs in series as current mirrors, along with an input voltage comparator. The voltage comparator compares the input voltage to a reference voltage and, when the two change more than a certain threshold, it switches the MOSFETs from ON to OFF or vice versa. The switching of the MOSFETs controls the output voltage, keeping it stable.

The SI9121DY-3-T1-E3 voltage regulator has many benefits and can be used in a wide variety of electronic applications. It is a low-power, high-efficiency device that offers a stable voltage output and protection from current, thermal, and reverse current overloads. As a special purpose voltage regulator, it is ideal for use with portable electronics and other small electronics where a stable voltage supply is required.

The specific data is subject to PDF, and the above content is for reference