onsemi Voltage Regulators - DC DC Switching Regulators ILC6390CM-33

The ILC6390CM-33 is a boost converter designed for applications requiring a fixed output voltage of 3.3V and a maximum output current of 50mA. It utilizes Pulse Frequency Modulation (PFM) to achieve high efficiency, with a typical conversion efficiency of up to 85% at 5V output. The device operates with a low start-up voltage of 900mV and features automatic load sensing to optimize duty cycles between 55% and 75%, enhancing efficiency across varying load conditions. This regulator requires only three external components for complete circuit implementation, making it suitable for compact designs. It is housed in a SOT-89 package, which is advantageous for space-constrained applications. The ILC6390CM-33 also includes a shutdown feature that reduces supply current to a minimal 0.5µA, contributing to power savings in battery-operated devices. The device is rated for operation within a temperature range of -30°C to +80°C and can handle input voltages up to 12V. It is applicable in various portable electronic devices such as cellular phones, cameras, and PDAs.