LM2588T-12/NOPB

LM2588T-12/NOPB Application Field and Working Principle

The LM2588T-12/NOPB is a 5A adjustable step-up switching regulator with a wide operating temperature range, ideally suited for low voltage regulated power supply applications. It uses a combination of analog and digital power switching technologies, and features a high accuracy current limit protection and adjustable frequency operation. The device offers very low quiescent current performance at high efficiency, with a low voltage drop across its output. The LM2588T-12/NOPB is a voltage regulator, and is classified in the Power Management Integrated Circuit (PMIC) product family, under the Voltage Regulator category, specifically under DC DC Switching Regulators.

Applications

Due to its wide operating temperature range, the LM2588T-12/NOPB is suitable for a variety of applications, especially in battery powered or other low voltage regulated power supplies. It can be used in offline battery to create a system power supply (step-up DC-to-DC converter) or as a full bridge rectifier when regulations not required.

Working Principle

The LM2588T-12/NOPB works on a switching regulator principle, with a pulse-width modulated (PWM) output in order to provide a regulated output voltage. The PWM controller is designed to respond to a regulated 5V input voltage, typically provided by a battery or regulated wall adapter. The controller then uses a switching transistor to drive the output stage, with a feedback loop providing the regulation of the output. The LM2588T-12/NOPB offers a maximum output of 12V and has a wide input voltage range of 5V to 16V.

The device has several external pins that provide various functions. The ground pin is connected to the circuit ground, while the input (IN) pin is connected to the input voltage, while the output (OUT) pin is connected to the output of the device. The EN pin enables and disables the device, while the VSS pin is connected to the voltage sense pins. The VSEN pin is connected to the voltage sense pin and provides the voltage regulation feedback. The Sense pin is connected to the Vin pin, and acts as the sensing element for the current limit protection. The VID pin controls the output voltage.

The LM2588T-12/NOPB has a wide range of features, including Output Current Limit, Short-Circuit Protection, Thermal Shutdown, Changeable Frequency and Output Voltage Control, Soft Start, Internal Over Voltage Protection, current limit protection and adjustable frequency operation. The device can be operated at a frequency of up to 500kHz, and offers low quiescent current performance and high efficiency.

Conclusion

The LM2588T-12/NOPB is an adjustable step-up switching regulator designed for low voltage regulated power supplies. It offers a wide operating temperature range, analog and digital power switching technologies, and high accuracy current limit protection and adjustable frequency operation. It is classified in the Power Management Integrated Circuit (PMIC) product family, under the Voltage Regulators category, specifically under DC DC Switching Regulators. The device offers a wide range of features, including adjustable output voltage, current limit protection and adjustable frequency operation, and is suitable for general power supply applications and battery operated devices.