Monolithic Power Systems, Inc. Voltage Regulators - DC DC Switching Regulators MP2155GQ-P

The MP2155GQ-P is a highly efficient Buck-Boost converter designed for applications requiring adjustable output voltage from 1.5V to 5V, with an input voltage range of 2V to 5.5V. It features a maximum load capability of 1A at 3.3V output when supplied with input voltages between 2.7V and 5.5V. The device operates at a fixed switching frequency of 1MHz, which helps maintain stability and fast transient response. With a quiescent current of approximately 80OºA, the MP2155GQ-P is suitable for battery-powered devices, ensuring longer battery life through its optional pulse skipping mode during light load conditions. The converter includes internal soft start, over-temperature protection, and short-circuit protection, enhancing its reliability in various applications such as portable instruments, tablet PCs, and POS systems. The product is housed in a compact 3x3mm QFN10 package, making it ideal for space-constrained designs.