MAX16903RATB33/V+T

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The MAX16903RATB33/V+T is a compact, dual-output, integrated DC/DC step-down switching regulator. This high-efficiency switching regulator includes a 10µA, 1.12V voltage reference, a 32kHz PWM step-down controller, and integrated dual N-channel power MOSFETs in an SO-8 package. The combination of the integrated MOSFETs and low quiescent current in the low dropout regulator (LDO) enable excellent power efficiency and a low component footprint. The MAX16903RATB33/V+T uses a two-phase, pulse-width-modulated (PWM) control scheme to regulate the desired output voltage. The switching regulator is designed to provide a regulated voltage, typically 5V, to the downstream circuits.

The MAX16903RATB33/V+T application field mainly includes communications and networking, digital TV, digital audio, embedded/control/IoT, industrial, portable devices and medical systems. The applications in the communications and networking field include base stations and fiber optic applications, broadband routers and set-top boxes, while applications in the digital TV field include digital TVs and connected TVs.

The MAX16903RATB33/V+T working principle is to provide a regulated voltage for the downstream circuits by adjusting the duty cycle of the pulse width modulation (PWM) control system. The controller regulates the output voltage by sending a logic signal to the power switch. This causes the switch to turn on and off in a certain period, thus regulating the voltage. The power switch is also responsible for providing the optimal amount of current to the load. The controller then compares the actual output voltage to the reference voltage and adjusts the duty cycle of the power switch.

The MAX16903RATB33/V+T is designed to provide a regulated output voltage even in conditions of heavy output load transients. This is due to the dual-phase PWM control scheme, which allows it to respond quickly to load transients and recover to a stable output voltage in a short time. The device also features adjustable soft-start and over current protection, as well as programmable power save mode and fast transient response.

In addition, the MAX16903RATB33/V+T has many safety features, such as output over voltage protection (OVP), thermal shutdown protection, and cycle-by-cycle current limiting. These features help ensure that the device remains operational in extreme conditions and that the output voltage remains regulated even over different loads.

The MAX16903RATB33/V+T is an efficient and reliable integrated DC/DC step-down switching regulator. It combines a high-efficiency controller with low quiescent current in an SO-8 package. This allows for a compact design and excellent power efficiency. It also features adjustable soft-start and over current protection, as well as programmable power save mode and fast transient response. It is ideal for use in applications such as communications and networking, digital TV, digital audio, embedded/control/IoT, industrial, portable devices and medical systems.

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