LP2992AILD-1.8/NOPB

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The LP2992AILD-1.8/NOPB is a low-dropout regulator (LDO) for consumer and portable applications, with extremely low power consumption. It is suitable for a wide range of PMIC - Voltage Regulators - Linear applications such as mobile phones, digital cameras, PDAs, MP3 players, etc. It has a low quiescent current of typically 20uA and a high power supply rejection ratio (PSRR) of typically 80dB. The LP2992AILD-1.8/NOPB can operate from a wide input voltage range of 1.5V to 6.5V and its output voltage is adjustable from 0.8V to 3.3V.

The LP2992AILD-1.8/NOPB is based on a hysteretic architecture and has a fixed 1.8V voltage reference. The device has a maximum output current of 1A and a minimum drop-out voltage of typically 0.1V. The internal 0.6Ω current source ensures stability and reduces the power dissipation. It also provides an output accuracy of ± 2% over the temperature range. The integrated soft start feature eliminates power on/off surges. In addition, the LP2992AILD-1.8/NOPB has built-in overtemperature protection, short circuit protection, output current limit and reverse current protection.

The LP2992AILD-1.8/NOPB is packaged in a 5-pin SOIC package, with input and output pins on opposite sides for easy routing. The device is rated for operation at temperatures ranging from -40°C to +85°C. The LP2992AILD-1.8/NOPB is an ideal solution for space-constrained applications and is suitable for replacing higher-dropout linear regulators and other higher-power systems.

The working principle of the LP2992AILD-1.8/NOPB is based on a hysteretic architecture and is designed to provide high efficiency and low power consumption. It consists of an input voltage divider comprising two resistors and a feedback amplifier. The two resistors are connected in series with the input voltage and the output voltage is connected to the connection point between the two resistors. This connection point acts as a threshold, and when the input voltage falls below the threshold voltage, the regulator turns off and stops supplying power to the load. When the voltage rises above the threshold, the regulator turns on and supplies power to the load.

The hysteretic architecture of the LP2992AILD-1.8/NOPB helps to reduce power consumption while providing excellent regulation performance. The internal 0.6Ω current source enables the device to remain stable even under heavy loading conditions. The integrated soft-start feature eliminates power on/off surges, ensuring a smooth transition from low to full load conditions. In addition, the device features a wide input voltage range and excellent PSRR, allowing it to operate reliably in noisy environments.

The LP2992AILD-1.8/NOPB is an ideal solution for a wide range of PMIC - Voltage Regulators - Linear applications, due to its low power consumption, wide input voltage range, high power supply rejection ratio, and excellent thermal stability. The integrated protection features help to protect the device from short circuits, over temperature, and reverse current conditions, ensuring a safe and reliable operation. Furthermore, the package and pinout are designed to make the device easy to use, as well as space-efficient.

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