UCD7230RGWRG4

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The UCD7230RGWRG4 is a non-isolated, fixed switching frequency, step-down DC-DC controller with integrated high-side and low-side MOSFETs. It is typically used to implement a 16 V input to 1.2 V output DC-DC conversion with up to 75 A load current. It features a wide input voltage range and is suitable for low-voltage, high-current applications like automotive and industrial power supplies. This device can be easily configured and monitored by most popular PMICs, making it a convenient and versatile choice for a wide range of applications.

The UCD7230RGWRG4 is part of the PMIC (Power Management IC) Voltage Regulators subfamily and DC DC Switching Controllers group. It is designed to control and provide adequate power to the output load, utilizing a hysteretic, fixed-frequency current-mode control technique. This technique ensures excellent line and load regulation, as well as fast transient response to changes in load current. The device also supports voltage margining and synchronization capability. The controller is compatible with a wide variety of buck topologies, depending on the user’s needs.

The operating principle of the UCD7230RGWRG4 is simple: the device measures the output voltage and current, and modulates the power switch’s on-and-off times accordingly to maintain the set output voltage. The device features a current-mode control loop which regulates the peak current limit of the inductor current, allowing for fast dynamic performance. When the inductor current reaches the peak current limit, the device shuts off the power switch for an amount of time proportional to the current. This method ensures an efficient, low-output ripple, as well as fast dynamic response to transient loads.

The device also features a wide array of protections such as thermal shutdown and over-current protection, as well as a smart Gate Drive that improves efficiency, reduces EMI, and increases reliability. The UCD7230RGWRG4 is compatible with a wide range of external components, including but not limited to output inductors and capacitors, Schottky diodes, heatsink assemblies, filter circuits, and external controllers. It is even capable of self-starting with no external components necessary, a feature which makes it suitable for a wide range of applications.

The UCD7230RGWRG4 is thus an ideal device for a variety of DC-DC conversion applications, including industrial and automotive power supplies, server and telecom power supplies, and battery chargers. Due to its configurability, protection features, and easy monitoring, the UCD7230RGWRG4 is a great and versatile choice for power management in a wide range of applications, and can be easily implemented with a wide selection of PMICs.

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