onsemi PMIC - PMIC - Power Management - Specialized - ML4854ITX ML4854ITX

The ML4854ITX is an adjustable, low-current boost regulator designed for two-cell battery-powered applications, such as cell phones and portable instrumentation. It operates within an input voltage range of 1.6V to 4.5V and can start up at voltages as low as 1.3V, functioning down to 0.8V after startup. The output voltage is adjustable from 3.3V to 5V using external resistors, with a maximum output current of 0.5A. This device features a high efficiency of up to 95% at a load current of 200mA, integrated peak current limiting, and a fully internal synchronous rectifier, eliminating the need for external diodes. It also includes low-battery detection and a logic-controlled shutdown function that disconnects the load, helping to extend battery life with a quiescent current of less than 30µA in shutdown mode. The ML4854ITX is packaged in an 8-lead TSSOP format and is suitable for applications requiring efficient power management in compact designs.