AP1501A-T5L-U

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The AP1501A-T5L-U is a DC-DC switch mode, step-down voltage regulator designed to convert input voltage (typically 5 to 24V) to a regulated output voltage as low as 0.8V, with up to 1A of output current. This device is offered in a compact SOT23-5 package, with a variety of features that make it ideal for powering low-power, embedded systems applications.

The unit combines external components and superior analog design to ensure stable, accurate and reliable regulation in wide temperature ranges, over a range of input voltage variations. The AP1501A-T5L-U is capable of delivering 0.2% of regulation, with both fixed and adjustable outputs available. It also features integrated over-temperature and over-current protection, on-board reference voltage and sync input, as well as fast transient response and high efficiency. Additionally, it has wide output disable function and current-limiting protection.

AP1501A-T5L-U is typically used in automotive, industrial, telecom and computing applications. In automotive applications, for example, the unit can be used to power a vehicle’s sensors and actuators. In industrial applications, it can provide a regulated power supply for PLCs, industrial controllers and inverters. In the telecoms field, it can be used for powering base stations and microwave power amplifiers, while in computing, it is suitable for powering CPUs, chipsets, peripherals, memory and storage. In all these applications, the unit ensures a stable, reliable output voltage and can also operate at temperatures ranging from -40℃ to +125℃.

The working principle of the AP1501A-T5L-U is based on pulse-width modulation (PWM) control and buck topology. It operates by connecting an external power switch to the input voltage source, which is then switched ON and OFF at high frequency at a set duty cycle. The output capacitor then smooths the output to the required steady-state voltage level. The unit can also accept an external synchronous clock, allowing the PWM switching frequency to be adjusted for applications requiring minimum switching noise.

The AP1501A-T5L-U is easy to use and configure, thanks to its on-board voltage reference and synchronization input. It is also well-suited to a range of applications where efficient, low noise and high power supply performance are required. With its highly accurate output voltage and its ability to operate over extreme temperature ranges, this unit is the perfect solution for powering low-power, embedded systems.

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