Win Source Electronics PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - LTC3542EDC#TRMPBF 020591-LTC3542EDC#TRMPBF

The LTC3542EDC#TRMPBF is a high-efficiency synchronous buck converter designed for step-down voltage regulation. It operates within a 2.5V to 5.5V input voltage range and provides an adjustable output voltage from 0.6V to the input voltage. The device features a peak switch current capability of 1000mA and achieves efficiencies of up to 96%. It operates at a constant switching frequency of 2.25MHz, with the option for external frequency synchronization between 1MHz and 3MHz. This regulator is optimized for low quiescent current, drawing only 26OºA during operation and less than 1OºA in shutdown mode, making it suitable for battery-powered applications. The LTC3542 includes internal soft-start functionality to limit inrush current and offers low output ripple, typically below 20mVP-P. It is available in a compact 6-lead DFN package, which is advantageous for space-constrained designs. The device is also overtemperature protected, ensuring reliability in various operating conditions. Applications include cellular phones, digital cameras, and other handheld devices.