MIC23050-4YML-TR

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The MIC23050-4YML-TR is a 1.5-A, 30-V Synchronous Step-Down Buck Regulator with integrated MOSFET. This regulator offers adjustable output voltage and provides high input flexibility. It features an integrated FET and is optimized for high efficiency at heavy load and light loads. This regulator is ideal for applications such as mobile device power requirements, DSPs, microcontrollers and other low-voltage digital logic.

The device operates from an input voltage range of 2.5V to 5.5V. Its enable function allows for shutdown to achieve greater than 0.1uA standby current. The MIC23050-4YML-TR includes output voltage tracking, which tracks a pre-configured external resistance. It also has cycle-by-cycle current limit and short-circuit protection.

The device operates on the principle of synchronous rectification, which enables it to generate a high efficiency at light load. It utilizes a pulse width modulation (PWM) technique to produce a constant frequency, duty cycle-based control waveform. The duty cycle of the control signal is adjusted to maintain fixed output voltage. This output voltage can be adjusted by external resistor. When input voltage decreases, the output voltage also drops.

The MIC23050-4YML-TR can operate in either continuous or discontinuous inductor current. The device also includes soft-start, over-temperature and undervoltage lock-out (UVLO) protection. The device features high efficiency and fast transient response, allowing for high power delivery with low output noise. The input capacitor ESR can be monitored using a built-in on-chip comparator.

The MIC23050-4YML-TR is a suitable solution for applications demanding high output accuracy, low quiescent current, fast transient response and smooth output voltage regulation such as automotive, medical, telecommunications and industrial applications. This device is also ideal for applications that require low quiescent current and fewer external components. The device is offered in 3x3-mm flatpack WLCSP package.

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