LM2612 Datasheet | National Semiconductor

Description The LM2612 step-down DC-DC converter is optimized for powering ultra-low voltage circuits from a single Lithium-Ion cell. It provides up to 400m A (300m A for B grade), over an input voltage range of 2.8V to 5.5V. Pin programmable output voltages of 1.05V, 1.3V, 1.5V or 1.8V allow adjustment for MPU voltage options without board redesign or external feedback resistors. The device has three pin-selectable modes for maximizing battery life in mobile phones and similar portable applications. Low-noise PWM mode offers 600k Hz fixed-frequency operation to reduce interference in RF and data acquisition applications during full-power operation. In PWM mode, internal synchronous rectification provides high efficiency (91% typ. at 1.8VOUT). A SYNC input allows...