Torex Semiconductor, Ltd. Voltage Regulators - DC DC Switching Regulators XC9236A39C0R-G

The XC9236A39C0R-G is a synchronous step-down DC/DC converter designed to provide a fixed output voltage of 3.9V with a maximum output current of 600mA. It operates within an input voltage range of 2.0V to 6.0V and features high efficiency, typically reaching up to 92%. The device incorporates a built-in P-channel MOS driver transistor with a resistance of 0.42Oc and an N-channel MOS switching transistor with a resistance of 0.52Oc, allowing for the use of low ESR ceramic capacitors. This regulator supports automatic PWM/PFM switching control, which optimizes performance across varying load conditions, ensuring low ripple and fast response times. It includes a soft start function, reducing inrush current during startup, and a built-in under-voltage lockout (UVLO) feature that disables the output when the input voltage falls below 1.4V. The XC9236A39C0R-G is available in multiple package options, including USP-6C and USP-6EL, making it suitable for compact applications in mobile devices, digital cameras, and portable gaming consoles.