General Description

The APW7079 is a compact, PFM mode, and step-up DC-DC converter with low quiescent current. The internal synchronous rectifier reduces cost and PCB space by eliminating the need for an external Schottky diode. Low on-resistance of the internal switches improves the efficiency up to 92. The start-up voltage is guaranteed below 1V . After start-up, the device can operate with input voltage down to 0.7V . The APW7079 is suitable for portable battery-powered applications. Consuming only 11mA quiescent current and an optimized control scheme allows the device to operate at very high efficiency over the entire load current range.

特性 Features

? 0.9V T ypical Start-up Input Voltage

? 11mA Typical No Load Quiescent Current

? PFM Operation

? High Efficiency up to 92

? Fixed 1.8V, 2.6V, 2.8V, 3V, 3.3V, 3.8V, 4.5V or 5V Output Voltage

? 600mA Internal Switch Current

? Internal Synchronous Rectifier

? SOT-89 Package

? Lead Free and Green Devices Available(RoHS Compliant)