PD01S0512A

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DC DC converters are essential components in a wide variety of industrial, automotive, medical and consumer applications. Typical applications include providing precise voltage and current control, LED display control, as well as providing energy efficient power conversion solutions. The PD01S0512A is a 15 Watts non-isolated DC DC converter from Core Power Series, designed to meet the demanding needs of today\'s most dynamic applications. This article aims to discuss the application field and working principle of the PD01S0512A.

The PD01S0512A offers industry-leading specifications and features, with an ultra-wide 4:1 input voltage range and up to 86% efficiency. Its extremely small form factor and advanced thermal management ensures the device operates reliably and safely. This makes the PD01S0512A ideal for applications in computing, storage, communications, industrial automation, automotive and medical markets including point of load (POL) for FPGAs and ASICs, as well as high current and high voltage module applications.

The PD01S0512A can provide up to 12A at 1.2V and 5V from 4.5V to 18V input voltage. It is available in a tiny 2.28”x1.45”x0.4” package, ideal for space constrained environments. In addition, the PD01S0512A provides adjustable output voltage (down to 0.8V) and short circuit protection, making it a versatile and reliable solution for a wide range of applications. The PD01S0512A is RoHS compliant and can operate from -40°C to 100°C.

The PD01S0512A is designed with PWM control technique which provides higher efficiency and better thermal performance compared to linear regulator. The device uses pulse-width modulation (PWM) to regulate the output voltage. The PWM control technique involves a low frequency, high peak current switchmode topology. The device generates a square wave modulated by an internal control loop. During the on-time of the PWM, a fixed amount of power is delivered to the output while during the off-time, no power is delivered. By varying the on-time and off-time ratio, the output voltage can be controlled.

The PD01S0512A utilizes a synchronous rectifier, also known as “power MOSFET rectifier”, to reduce conduction loss and switching loss of the internal switching components. During the on-time, the synchronous rectifier pulls the inductor current across the output capacitor and delivers the power to the output. During the off-time, the output voltage is maintained by a mini-circuit composed of the diode, output capacitor, and resistors.

In addition to the device\'s exceptional features and specifications, the PD01S0512A includes an integrated package Power Supply Rejection Ratio (PSRR) filter. This filter reduces the output noise and ripple, enhances the EMI response, and maintains the output voltage accuracy in response to input voltage disturbances. It also allows the device to easily pass stringent EMI requirements.

To sum up, the PD01S0512A is a highly integrated, compact and efficient DC DC converter ideal for a wide range of applications. It offers high performance, low power consumption and reliable operation. It is highly versatile and offers a wide range of features including wide input voltage range, adjustable output voltage, efficient switchmode technology, and integrated PSRR filter.

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