LM3311SQX/NOPB Datasheet/PDFThe LM3311SQX/NOPB is a DC-DC Switching Regulator which is a type of voltage regulator that contains a power stage which regulates the output voltage based on a switching signal. It utilizes pulse width modulation (PWM) technology to control the voltage output.
Application field
The LM3311SQX/NOPB is a versatile DC-DC regulator ideal for many applications including computing, telecommunications and consumer electronics. It allows for high efficiency, low noise and a wide input range due to its adjustable duty cycle. Additionally, its integrated output stage allows for accurate output voltage regulation. It can be used for numerous applications including signal conditioners, audio signal processing, instrumentation and medical electronics.
Working principle
The LM3311SQX/NOPB works by using an internal PWM feedback circuit and comparator to regulate the output voltage. The feedback circuit samples the output voltage and drives an internal pulse width modulated (PWM) signal to the switch terminal of the output stage. This PWM signal is used to toggle the switch thereby controlling the output voltage. The output voltage is further regulated by adjusting the duty cycle of the PWM signal. The duty cycle is adjusted by the pwm comparator which compares the feedback voltage with a predetermined reference voltage.
The LM3311SQX/NOPB also contains a wide range of integrated protections including over current protection, short circuit protection and over temperature protection. It also has built-in under voltage lock out, reverse voltage protection and over voltage protection. All of these protections help to ensure stable operation and prevent device damage.