LM34914SDX/NOPB

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

LM34914SDX/NOPB is a 3A, 5V Synchronous Step-Down DC/DC Switching Regulator integrated circuit, designed to enable applications with advanced power conversion, offering high efficiency and low output current noise. It consists of one main power switch, one power inductor, one power capacitor, one resistive Terminal and one bypassing capacitor.

The primary application of LM34914SDX/NOPB is for providing advanced post regulation to ensure voltage regulation accuracy in battery powered applications. This IC utilizes a pulse-width modulation (PWM) control architecture which actively supports a fast recovery from over and under-voltage stresses. It has adjustable frequency from 300 kHz to 1 MHz to optimize power efficiency and reduce noise.

LM34914SDX/NOPB features a programmable current limit, fixed load line, power switch current sensing, over-temperature protection and undervoltage protection, as well as an optional power-saving Ultralow IQ sleep mode. It also has adjustable soft-start feature that ensures smooth start-up, eliminating output transients.

In addition, LM34914SDX/NOPB offers a neat package that requires fewer external components, decreasing board space requirement and cost. This IC has a 5-pin TSOT package, operating temperature range of -40° C to +85° C, and an operating voltage of 1V to 12V.

The working principle behind LM34914SDX/NOPB is fairly simple. It uses an input voltage to power an internal power switch, usually between 2.5 volts and 24 volts, that charges the inductor when it is on. After the switch is off, the inductor is discharged through the output capacitor, providing the desired output voltage. Any extra current will be absorbed by the load line.

The programmable current limit circuit ensures that the current is limited within a certain level to prevent over-current conditions. The internal power switch also features power switch current sensing (PSCS) circuit, and the internal over-temperature and undervoltage protection, so that if the external components or the output voltage is higher than normal, it will automatically switch off and same in the event of over-temperature or undervoltage.

LM34914SDX/NOPB is suitable for industrial, telecommunication, automotive, and portable applications that may require a highly regulated output voltage. It provides an efficient, low profile, and small solution to achieve a regulated output voltage.

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