.The SLM2169 is a DC-DC step-up converter with a SOT-23-5 package, manufactured by Sola. It is RoHS compliant and outputs 1.8V–5.5V DC from a single 3V–6V DC input. It also features 1.1MHz switching frequency for improved efficiency. The design also includes 550mV feedback voltage and a shutdown current of 4 µA, providing an improved load regulation. Additionally, it provides a 125mV reference voltage, and a short-circuit protection and an over-temperature protection. In addition, this part provides a quiescent current of 400 mA to ensure low power consumption, and a maximum output current of 1.4A.