MIC28513-2YFL-T5

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PMIC - Voltage Regulators - DC DC Switching Regulators

The MIC28513-2YFL-T5 is a synchronous monolithic step-down voltage regulator from MIC Chips that features low RDS(on) output. The device comes in a small 9-Pin WDFN package. It includes an internal high-side switch and an integrated driver for improved reliability and optimized thermal performance. It is ideal for managing power to various applications that incorporate D-Type Cell batteries, as well as other applications that require a constant output voltage.

Applications of the MIC28513-2YFL-T5 include:

• Battery powered equipment
• MP3 Players
• Digital cameras
• Mobile phones
• Tablets
• Laptops
• Medical Devices
• Automotive Electronics
• Industrial Electronics

The MIC28513-2YFL-T5 is a synchronous buck converter with high efficiency rating. It can deliver up to 2A of output current in constant voltage or constant current mode. The MIC28513-2YFL-T5 features an adjustable output voltage range from 0.9 V to 5.5 V with a maximum output voltage ripple of 1.5mV. The device has internal protection features including an adjustable output current limit and short-circuit protection for improved reliability.

The MIC28513-2YFL-T5 features and adjustable switching frequency range from 300kHz to 2.3MHz. The device also features a low startup current of 1uA and shutdown current of 0.4uA. The IC also includes a wide range of protection features including over-voltage protection, under voltage protection, overtemperature protection and reverse current protection.

The MIC28513-2YFL-T5’s working principle is based on switching a synchronous Buck Converter. The Buck Converter is an AC/DC circuit containing two power transistors in a bridge configuration. The two transistors alternately switch on and off, driving an output transformer. This transformer isolates the input from the output and steps down the voltage as required.

When the Buck Converter is powered on, the two transistors switch on and off in a specific order. When the transistors switch on, current flows through the primary side of the transformer, generating a voltage drop. This voltage drop is rectified by a diode and the output capacitor supplies power to the load. As the transistors switch off, current then flows from the output capacitor, supplying power to the load. This process is repeated continuously, resulting in a regulated output voltage.

The MIC28513-2YFL-T5 is designed with a synchronous architecture, which reduces current ripple and provides improved efficiency. This improves overall system performance, enabling smaller board size and lower power consumption. The device also includes a wide range of protection features to ensure reliable operation and optimal system performance.

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