UA78L05ACLPRE3

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

UA78L05ACLPRE3 is a voltage regulator from the linear PMIC family. It is an integrated circuit (IC) which accepts an input voltage and adjusts it to an output voltage that can be regulated in a variety of ways. In this case, the regulator will be used to dampen an unpredictable supply voltage in order to maintain a consistent voltage. It is a good choice for protecting yourself against power brownouts or spikes.

Single Output Voltage Regulator

The UA78L05ACLPRE3 is a single output voltage regulator, offering a constant 5V output. It has a wide input voltage range from between 7V to 25V, making it suitable for a variety of systems. The output current from the device is up to 100mA, though the fault protection circuitry ensures that this is only reached when necessary.

Features

Some of the features that the UA78L05ACLPRE3 boasts are its protection against overvoltage and overcurrent conditions, temperature optimized operation, and unchangeable operating temperature range. The output voltage is kept accurate at temperatures of between -40 °C to 125 °C, and an adjustable current monitor provides an additional level of protection. It also comes with short circuit protection, allowing only up to 100 mA of short circuit current.

Application Fields and Working Principle

The UA78L05ACLPRE3 is designed to provide a stable 5V output voltage and protect against over current and over voltage conditions. This makes it ideal for applications such as power supplies, automation, industrial control systems and other electrical circuits that require a regulated voltage. The device utilizes a 3-terminal internal voltage regulator to ensure a steady output voltage over a wide range of load and input voltage conditions.

A pulse-width modulation (PWM) technique is used to control the output voltage. When an input voltage is applied, the PWM circuit begins generating a series of pulses at a predetermined frequency. Each pulse is delivered to a pass transistor, which provides the actual output current. The pulse width progressively increases until the peak width is reached, at which point the output voltage is set. The peak output voltage is regulated by comparing it with a reference voltage and adjusting the pulse width accordingly.

Conclusion

The UA78L05ACLPRE3 is a single output voltage regulator designed to supply and regulate a 5V output voltage. It offers a wide input voltage range, protection against overvoltage and overcurrent conditions, temperature optimized operation, and unchangeable operating temperature range. It is an ideal choice for applications such as power supplies, automation, industrial control systems, and other circuits requiring a regulated voltage. It is a linear voltage regulator and utilizes a 3-terminal internal voltage regulator as well as a PWM technique to ensure a steady output voltage.

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