AP2139AK-1.8TRG1

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The AP2139AK-1.8TRG1 is a linear voltage regulator from Anpec Electronics, specifically designed for voltage down-conversion for low power applications which require simple, adjustable and low cost solutions. It is a high precision, current-controlled, low drop-out (LDO) linear regulator. It is available in SIP-8, SOP-8 and TSSOP-8 packages. This device is suitable for a variety of industrial, consumer, automotive and computing applications.

Working Principle:

The AP2139AK-1.8TRG1 is a current mode linear regulator, designed to use external shunts to regulate output voltage. It features a three-pin programmable current reference, with which users can set the regulation voltage. When the output voltage falls below the programmed value, the chip automatically switches to a low-dropout, current-mode control to ensure accurate voltage regulation. The device also features a two-pin program-and-fault detection input, which allows the user to set an over-current threshold or a minimum-voltage fault trip-point. An open detection circuit ensures failure-mode monitoring and protection of the device and load.

Application Field:

The AP2139AK-1.8TRG1can be used in a variety of applications requiring small form factor and low cost. One application is reducing noise and ripple in data and audio power supplies. In this application, the AP2139AK-1.8TRG1 functions as a linear-mode voltage regulator that can maintain stable power supply and low noise over a wide frequency range. It can also be used in motor control systems, where it can be used to regulate input voltage and maintain consistent motor speed. Other applications include battery-powered devices, USB-powered devices and 5V to 3V down conversion.

In addition to these applications, the AP2139AK-1.8TRG1 can also be used for a wide range of non-critical voltage down-conversion devices such as automotive audio systems, remote controls, toys, and TV remote control units. It can also be used in various monitoring and controlling sub-circuits, where accurate voltage and current sensing is necessary.

The AP2139AK-1.8TRG1 is also ideal for portable and embedded computer systems, as it is designed to be small and lightweight. It can also be used in analog and digital camera modules, audio equipment, and communication systems where regulators with a wide range of output current and voltage are desired. Furthermore, the device is very versatile, as it can operate in either linear or switching mode.

In summary, the AP2139AK-1.8TRG1 is a linear voltage regulator specially designed for low power applications requiring simple, adjustable, and low-cost solutions. It can be used in a wide range of applications, such as motor control systems, portable and embedded computer systems, battery-powered devices, remote control units and audio systems. Furthermore, it offers excellent efficiency and current-mode control, enabling efficient down-conversion of input voltage.

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