DIODES Incorporated Voltage Regulators - Linear AP139-35WG-7

The AP139-35WG-7 is a linear voltage regulator from Quarktwin Technology Ltd. designed to provide a stable output voltage of 3.5V with a maximum output current of 300mA. It operates within an input voltage range of 2.7V to 5.5V and features a very low dropout voltage, making it suitable for battery-powered applications. The device has a low quiescent current of 45OºA typical, which enhances its efficiency in low-power scenarios. This regulator includes built-in protections such as thermal shutdown and current limiting to safeguard against potential failures under adverse conditions. It is stable with low ESR capacitors, requiring a minimum output capacitance of 1.0OºF. The AP139-35WG-7 is packaged in a compact SOT25 form factor, making it ideal for space-constrained applications like personal communication devices and handheld electronics. Additionally, it is RoHS compliant and available in a lead-free finish.