LM2597M-12

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

LM2597M-12 is a high efficiency, monolithic synchronous step-down switching regulator with an internal power switch and adjustable output voltage. It is a DC-DC switching regulator which uses a pulse-width modulation (PWM) approach to regulate voltage, current and output power. The LM2597M-12 provides a wide range of features such as adjustable current limit, auto-restart circuitry, and fast response time.

The LM2597M-12 integrated circuit is designed to offer programmable power regulation, as well as improved performance, flexibility, and efficiency in applications such as distributed power supplies, gaming consoles, and other DC-DC converters requiring multiple output voltage. It offers a wide programmable output voltage range from 1.25V to 10V, an integrated power switch with a maximum current rating of 3A, and an adjustable output current limit. The device also features a shutdown input pin, enabling the converter to be turned off during system idle period. Additionally, the LM2597m-12 is a synchronous rectifier design that combines low on-resistance plus fast turn-on and turn-off times.

Application Field

The LM2597M-12 device is suitable for use in applications requiring a low voltage supply such as distributed power supplies, gaming consoles, and other DC-DC converters requiring multiple output voltage. It can also be used in wide ranging applications such as portable audio devices, laptops, medical equipment, automotive systems, and industrial applications. With its programmable output voltages and internal power switch, the LM2597M-12 offers cost-effective solutions for applications where output voltage flexibility is required.

Working Principle

The LM2597M-12 converts an input voltage to a regulated output voltage using a PWM switching process. The output voltage is controlled by a feedback circuit which compares the reference voltage to the output of the device. The internal power switch oscillates at a frequency regulated by the PWM comparator, and the duty cycle (ratio between the on-state and off-state duration) of this switching action is adjusted to maintain a constant output voltage. The device operates in pulse-width modulation (PWM) mode, which enables the device to deliver power up to its maximum current rating at a wide range of input and output voltages.

When power is applied, the internal resistor and controller are put to work. The internal resistor adjusts the gain of the controlling voltage, and the controller takes the input voltage and compares it to the reference voltage. The output voltage is determined by the duty cycle of the internal switch. The pulse-width modulation (PWM) process is the most common way of controlling voltage, and the LM2597M-12 is an excellent choice for applications requiring an adjustable output voltage.

In addition to the adjustable output voltage, the LM2597M-12 also features fast response time, auto-restart circuitry, and adjustable current limit. These features provide an efficient and cost-effective solution for applications requiring multiple output voltage. The device also includes an integrated power switch, making it well suited for distributed power supplies.

Conclusion

In summary, the LM2597M-12 is a high efficiency monolithic synchronous step-down switching regulator designed to provide cost-effective solutions for applications requiring adjustable output voltage. It features fast response time, auto-restart circuitry, adjustable current limit, and an internal power switch. The LM2597M-12 is suitable for a wide range of applications such as distributed power supplies, gaming consoles, portable audio devices, laptops, medical equipment, automotive systems, and industrial applications.

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