The AP1509-5.0M/TR is a DC-DC Converters SOP-8 RoHS manufactured by HGSEMI. It is a DC-to-DC converter two-cell Li-Ion/Li-Polymer battery to 5.0V fixed regulator with PFM control. The features of the AP1509-5.0M/TR include a wide input voltage (2.5V to 5.5V), over-current protection, thermal shutdown protection, under-voltage lockout, mini SOP-8 Package, and 100% lead (Pb) free. The AP1509-5.0M/TR is ideal for portable devices such as mobile phones, cameras, digital audio players, and portable gaming systems.