ASP1257-W08T

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PMIC or Power Management Integrated Circuit is a type of electronic component which helps to control the flow of electrical power, convert it from one type of voltage to another, and regulate the current or voltage carried by an electronic circuit. The ASP1257-W08T, part of the special purpose voltage regulator category, is especially designed to offer power supply solutions for DSP, MCU, and local oscillator applications.

The ASP1257-W08T is intended specifically to support the power requirements of tiny low-power applications with a limited form factor. It features a wide-input voltage range of 4.5 V to 5.5 V and can provide up to 1 A of output current. It is a high-efficiency, low-voltage drop (VDROP) regulator with an integrated high-speed low-dropout (LDO) linear regulator. The regulator enables low-power designs that are especially suited for DSP, MCU, and local oscillator applications.

The ASP1257-W08T is a reliable, cost-effective solution for all applications requiring low output voltages and high current output. It integrates an optimized switching power stage and an accurate high-speed linear regulator, offering a cost-effective solution compared to other competitive solutions. It features a low voltage discrepancy of 0.5% and a fast transient response.

The device can regulate currents with different voltages under several significant load conditions, including low and high load switching, low-voltage loads, and a high-side current limit condition. It is designed to be used with a PMOSFET driver and is designed with a current limiting resistor. It is also capable of supporting step-down and step-up converter topologies.

The device utilizes a switching frequency of 1.2 MHz, providing ultra-fast transient response, low noise, and low ripple. It also provides a wide variety of operational modes and current limit settings, allowing the user to control the voltage, current, and ripple. It has a wide output voltage range, up to 4.5 V, and a low quiescent current of 0.2 μA.

The device is fully compliant with the RoHS Directive, which specifies the use of lead-free materials in the construction of electronic devices. It is also certified by UL – the Underwriters Laboratories – to meet the safety requirements of UL60950-1. The device is designed to meet the requirements of ESD and EMI to extended operating temperature range of -20°C to +85°C. The device also features an integrated over-temperature protection (OTP) circuit, with an adjustable OTP threshold.

The ASP1257-W08T has been successfully applied in industrial and consumer applications such as manufacturing and industrial automation systems, smart home and IoT devices, energy management systems, microcontroller-based systems, and personal electronic devices. Its unique combination of features, including efficient performance and cost-effectiveness, make the ASP1257-W08T an ideal fit for a wide range of applications.

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