CS51411GD8

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CS51411GD8 PMIC are DC to DC switching voltage regulator ideal for low-noise, high-efficiency synchronous step-down applications. This regulator provides an economically effective solution where battery / mains power conversion and/or voltage regulation is required..

Application fields

The CS51411GD8 offers a wide range of applications such as battery powered applications, portable electronic devices, off-line AC/DC power supplies, managed power supplies, UPS systems and switching regulators. Its low-noise performance enhances the quality of sound and the overall system performance.

In addition to its harmonic-free switching performance, it also offers low-dropout operation, which is critical in today\'s power designs that require robust regulation.

Working principle

At the heart of the CS51411GD8 is a patented synchronous step-down switching regulator circuit which provides for excellent line/load transients, AC ripple rejection and dynamic stability. This regulator uses an internal low-resistance PNP-NPN circuit to reduce impedance at the output and improve current sourcing capability. The CS51411GD8 also provides high power regulation up to 10A and allows a wide output voltage range, energy efficiency and low EMI.

The power switches are driven by an oscillator that can be synchronized with an external frequency up to 1.5MHz and supports pulse-width modulation (PWM) modulated control and analog controlled soft-start. The switching regulator also features a high-side current limit and a high-side over-voltage protection built into the IC.

In addition, the device incorporates an 8-bit resistor divider with an internal voltage reference. This ensures that the device can safely handle input voltages up to the maximum ratings. It also provides gain set point and soft-start control.

Conclusion

The CS51411GD8 provides an efficient, economical and low-noise solution for DC to DC conversion, voltage regulation and other applications. Its high-side current limit and over-voltage protection, integrated oscillator, PWM control and analog-controllable soft-start make it an ideal choice for many power applications.

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