Torex Semiconductor, Ltd. Voltage Regulators - DC DC Switching Regulators XC9244A3EC7R-G

The XC9244A3EC7R-G is a synchronous step-down DC/DC converter designed to deliver 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%. The device operates with an internal switching frequency of 1.2MHz, enabling the use of small external components. This regulator includes several important features such as a high-speed soft-start time of 0.25ms, 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 XC9244A3EC7R-G is housed in a compact USPN-6 package, making it suitable for applications requiring a low profile and small footprint. It is compliant with EU RoHS standards and operates within a temperature range of -40¬8C to +85¬8C. Applications include smartphones, mobile devices, and portable game consoles.