AP3585BMTR-G1

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AP3585BMTR-G1 Application Field and Working Principle

AP3585BMTR-G1 is a power management integrated circuit (PMIC) designed as a voltage regulator and DC-DC switching controller. It is designed for hassle-free conversion of direct current (DC) into adjustable voltage, delivered to applications from an external power source. It is employed in a wide range of applications, such as portable consumer electronics and embedded systems.

AP3585BMTR-G1 integrates a Pulse-Width Modulation (PWM) step-up DC-DC converter and an adjustable linear regulator. The DC-DC converter provides controlled output voltage to the load. This voltage is preset as desired by an external resistor divider. The device also features a programmable over-temperature protection, over-voltage protection, open load detection, and IN_POL polarity reverse protection.

AP3585BMTR-G1 provides superior efficiency, excellent load transient response, and low switching frequency with the adjustable linear regulator. It operates in two modes, Normal Mode and Sleep Mode, to ensure maximum power saving. In Normal Mode, the AP3585BMTR-G1 provides an accurate voltage regulation and low output voltage ripple, while in Sleep Mode, it reduces the supply current consumption to eliminate unnecessary energy consumption.

The AP3585BMTR-G1 provides low Noise and low EMI output voltage ripple. The external components have been minimized to facilitate quick prototyping. The device supports multiple output voltages and is designed to operate from input voltages down to 2.5V.

The AP3585BMTR-G1 employs a non-synchronous switching regulator to convert a battery voltage into an adjustable regulated DC output voltage, as low as 0V up to 15V. The output voltage level is programmed with an external resistor divider. An internal error amplifier monitors the output voltage and adjusts the switch duty-cycle to maintain a constant output voltage. The switching regulator will enter into the soft-start mode during power-up, giving the output voltage a slow, smooth rise to its working voltage level.

The AP3585BMTR-G1 provides excellent load performance in multiple load conditions, with very small fluctuations in output voltage and ripple in the output current waveform. This makes it very efficient in power management applications. It also features variable switching frequency, allowing the user to adjust the switching frequency to the desired level for enhanced system performance.

The AP3585BMTR-G1 device is ideal for any circuit or system requiring an adjustable voltage, comes with built-in protection, and has built-in over temperature and over-voltage protection. It requires a minimal number of external components, enabling easy design of the system and shortened time to market.

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