Renesas Electronics Corporation Voltage Regulators - DC DC Switching Regulators ISL9103IRUWZ-T

The ISL9103IRUWZ-T is a synchronous buck converter designed to provide a fixed output voltage of 1.2V with a maximum output current of 500mA. It operates within a supply voltage range of 2.7V to 6V, making it suitable for applications powered by single Li-ion batteries or multiple NiMH cells. The device features a high switching frequency of 2.4MHz, which allows for the use of smaller external components, contributing to a compact design. This regulator operates efficiently with a quiescent current of 20µA in skip mode, enhancing battery life in low-load conditions. It includes features such as internal digital soft-start, overcurrent protection, thermal shutdown, and a quick bleeding function to discharge the output capacitor when disabled. The ISL9103IRUWZ-T is housed in a small 6-pin µTDFN package, measuring 1.6mm x 1.6mm, which is beneficial for space-constrained applications like mobile phones and portable instruments. The device is RoHS compliant and operates over a temperature range of -40°C to +85°C.