Torex Semiconductor, Ltd. Voltage Regulators - DC DC Switching Regulators XC9244A09C7R-G

The XC9244A09C7R-G is a synchronous step-down DC/DC converter capable of delivering a maximum output current of 400mA. It features a built-in 0.65Oc P-channel MOS driver and a 0.45Oc N-channel MOS switching transistor, allowing for efficient operation with low ESR ceramic capacitors. The output voltage is adjustable from 0.8V to 4.0V in 0.05V increments, with an accuracy of ¬±2.0%. This device operates with a switching frequency of 1.2MHz, enabling the use of small external components. The XC9244A09C7R-G employs PWM control for fixed frequency operation, and includes a high-speed soft-start feature with a typical turn-on time of 0.25ms. It also incorporates a current limiter circuit to prevent thermal damage, and an under-voltage lockout (UVLO) function that disables the output when the input voltage drops below 2.25V. The device is packaged in a compact USPN-6 format, making it suitable for applications requiring a low profile and small footprint, such as smartphones, mobile devices, and portable game consoles. Operating temperature ranges from -40¬8C to +85¬8C, and the product is compliant with EU RoHS standards.