LP38853MRX-ADJ

The LP38853MRX-ADJ is an adjustable linear voltage regulator from Texas Instruments. By using this regulator, designers can reduce the number of external components and cost in the design of their power supply, as it offers complete solution for applications that require a regulated output, such as mobile and consumer electronics systems. The LP38853MRX-ADJ is a low-drop regulator that requires a very low number of external components to adjust the output voltage.The main features of the LP38853MRX-ADJ are low dropout voltage, low quiescent current, fast response time, and no-load shutdown feature. The LP38853MRX-ADJ is easy to use and simple to configure, providing up to 4% tolerance in output voltage, stable operation even in transient conditions, and an adjustable output voltage range from 0.8 V to 5.0 V with a maximum output current of 1.2A.The LP38853MRX-ADJ application field includes any devices requiring an adjustable voltage regulator, such as notebooks, cameras, laser printers, and cell phones. Besides, this voltage regulator can also be used in portable devices, as it has very low quiescent current and no-load shutdown feature.The working principle of the LP38853MRX-ADJ is based on the output voltage adjustment. This occurs through the use of an external voltage divider, which is connected to the adjust pin. When input voltage is applied, the voltage divider network provides a variable output voltage from the adjust pin which is compared with the internal reference voltage. The error amplifier then compensates for any difference between the two voltages, and the output of the error amplifier is fed to the gate driver which controls the output transistor. The output voltage is then adjusted to the desired level.The LP38853MRX-ADJ is highly efficient, reaching up to 97% efficiency and offering good thermal performance. It also has several protection features including overtemperature, overcurrent, and short-circuit protection, with programmable inrush current. This voltage regulator also has wide operating range, ranging from 2.7V to 5.5V.In conclusion, the LP38853MRX-ADJ is an ideal adjustable linear voltage regulator for power management in consumer and portable electronics. With its low dropout voltage, low quiescent current, fast response time, and no-load shutdown feature, this regulator not only provides a high level of efficiency, but is also suitable for a number of applications.