XR71211EH-F

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The XR71211EH-F is a low-on-resistance, low-power, cost-effective DCDC switching controller from the PMIC - Voltage Regulators - DC DC Switching Controllers family. This integrated circuit (IC) packs a high-voltage switch, error amplifier and switching frequency maximum peak current control in a durable package, making it an ideal choice for small applications such as for LCD panels, computer displays, and office equipment. This versatile device can be used with buck, boost, buck-boost, and flyback topologies; making it suitable for a wide range of applications.

The XR71211EH-F Application Field and Working Principle explains how the integrated circuit works, how it can improve the efficiency of a power design, and how its features make it an effective solution for a variety of applications.

The main feature of the XR71211EH-F is its ability to optimize power transfer between the input voltage to the output voltage. This is accomplished by pulse-width modulation (PWM) and/or pulse-frequency modulation (PFM) signals, where the device can control the switch on/off times to achieve maximum efficiency. Additionally, the control loop works by comparing the output voltage to an internal reference voltage, and adjusting the switch accordingly. In this way, it ensures a stable and accurate output.

In addition to its PWM/PFM switching, the XR71211EH-F also offers several features that serve to enhance the power design’s efficiency. These include programmable switching frequency, very low gate charge and output ripple, a fast transient response, and excellent line and load regulation accuracy. It also boasts wide input voltage range (4.5V to 24V), adjustable soft start/stop times, and temperature-independent power supply current.

These features, along with its low on-resistance, cost-effective design, and durable package make the XR71211EH-F an excellent choice for a wide array of applications, such as for LCD panels, computer displays, and office equipment. It is ideal for any design requiring a low-cost and efficient DCDC switching controller – providing efficient and stable power transfer.

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