QSB15024S12

DC-DC converters are widely used to convert electrical energy from one voltage level to another. The QSB15024S12 DC-DC converter is a high-efficiency, low-noise, current-mode buck-boost switching regulator that is designed for a variety of applications. It can accept input voltages of up to 24 volts and output voltages of up to 12 volts, and has a wide range of features such as adjustable current, thermal protection, low ripple voltage, low EMI, and wide operating temperature range.

The QSB15024S12 has a two-stage buck-boost design which is capable of producing either a step-up (boost) or step-down (buck) output voltage. The output voltage is determined by an on-board voltage divider, and is adjustable from 0.9V to 12V. The output current can range from up to 1A to 15A. It also features over-temperature protection and under-voltage lock-out.

The working principle of the QSB15024S12 is based on the pulse-width modulation (PWM). The PWM controls the switching of an N-channel or P-channel MOSFET switch to regulate the output voltage. The PWM signal is generated by the on-board control IC, and the frequency is adjustable up to 1.2MHz. The device also has a voltage feedforward and a current sense/feedback loop. The feedforward circuit ensures that the output voltage stays constant over a wide range of load conditions, and the current sense/feedback loop ensures that the output current remains within the safe limits.

The QSB15024S12 can be used in a variety of applications, such as telecommunications systems, industrial automation systems, portable products, computer peripherals, medical electronics, automotive electronics, and other applications where a reliable and efficient DC-DC converter is required. It is also used in adjustable power supply applications where an adjustable output voltage is required. The device offers a high level of efficiency, low EMI, wide operating temperature range, and excellent transient response.

In conclusion, the QSB15024S12 is a high-efficiency, low-noise, current-mode buck-boost switching regulator that is designed for an array of applications. It can convert electrical energy from one voltage level to another, and can produce either a step-up (boost) or step-down (buck) output voltage. The device features adjustable current, over-temperature protection, low EMI, wide operating temperature range, and excellent transient response. It can be used in a variety of applications such as telecommunications systems, industrial automation systems, and computer peripherals.