AP139-35WG-7 Integrated Circuits (ICs)

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

Linear Voltage Regulators are amongst the most basic power electronic regulators. They are used mainly for providing constant voltage outputs with relatively low current requirements, meaning they are typically used for low power applications. The AP139-35WG-7 linear voltage regulator is such a device.

The AP139-35WG-7 is a linear voltage regulator with a wide input range of 1.8 V to 5.5 V and output voltage of 3.3V ±2%. It is an integrated low dropout (LDO) regulator which can deliver up to 140 mA of current, making it well-suited for low-power applications. The device also features output voltage tracking, so that the output voltage is self-adjusting when the input voltage is within the range. It thus provides a consistent output voltage.

The AP139-35WG-7 has a low quiescent current of 100 μA and an efficiency of up to 86%. It has an on-chip power-on-reset circuitry and an internal thermal shut-down (TSD) circuit is also present. The device is designed with a built-in temperature monitor and can operate up to +125℃. It is packaged in a tiny SOT-23 package, making it perfect for applications in tight spaces. It is also RoHS compliant.

The working principle of the AP139-35WG-7 linear voltage regulator is simple. It is essentially a voltage-controlled variable resistor. The device takes in an input voltage and regulates it to the fixed desired output voltage. The voltage divider formed by the variable resistor is one of the primary components of the device. It then uses an anti-parallel transistor to control the output voltage of the device.

The motorized running of the variable resistor is controlled by the voltage difference between the regulator\'s output voltage and the desired output voltage. If the voltage difference is higher than the operating point of the device, a control signal will be sent to the transistor to increase its resistance. As the resistance of the transistor increases, the output voltage will be automatically adjusted to the desired output voltage. On the other hand, if the voltage difference is lower than the operating point of the device, the control signal will be sent to the transistor to lower its resistance, thus decreasing the output voltage. This process is continuously executed to ensure that the output voltage remains stable.

The AP139-35WG-7 is mainly used for powering low power applications, such as embedded and handheld devices, DLP projectors, rfID readers, driver boards, and other battery driven equipment. It is a reliable and cost-effective solution for these types of applications, as it can provide a stable output voltage and can operate in a wide temperature range.

Linear voltage regulators such as the AP139-35WG-7 are a key component of many electronics. The device is widely used because of its simplicity and relatively low cost. It is reliable and can provide a consistent output voltage, making it a good choice for low power applications.

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