ML4854 Datasheet (Fairchild) - Adjustable / Low-Current / 2-Cell Boost Regulator with Shutdown and Low Battery Detect

ML4854, Adjustable / Low-Current / 2-Cell Boost Regulator with Shutdown and Low Battery Detect

The ML4854 is a low power boost regulator designed for low voltage DC to DC conversion in two-cell battery powered systems such as cell phones and PDAs.

The converter starts up at 1.3V and has an operating input voltage range from 1.6V to 4.5V.

After the start it operates at an input voltage as low

ML4854 Features

* 95% Efﬁciency at 200mA Load Current Integrated Peak Current Limit Variable Output Voltage Determined by External Resistors Variable On-time Pulse Frequency Modulation (PFM) Fully Internal Synchronous Rectiﬁer (no external diodes) for High Efﬁciency a