Torex Semiconductor, Ltd. Voltage Regulators - DC DC Switching Regulators XC9237A2DDMR-G

The XC9237A2DDMR-G is a synchronous step-down DC/DC converter designed to provide a stable output voltage with high efficiency. It operates within an input voltage range of 2.0V to 6.0V and can deliver an output current of up to 600mA. The output voltage can be set externally from 0.9V to 6.0V using two external resistors, or it can be fixed at various levels from 0.8V to 4.0V depending on the specific type. This device features a built-in 0.42Oc P-channel MOS driver and a 0.52Oc N-channel MOS switching transistor, allowing for the use of low ESR ceramic capacitors. The XC9237 series supports manual switching between PWM control and automatic PWM/PFM switching control modes, which enhances performance across varying load conditions. It includes a soft start function, current limiting, and an under-voltage lockout (UVLO) feature to protect against low input voltage conditions. The XC9237A2DDMR-G is available in multiple package options, including SOT-25, USP-6C, USP-6EL, and WLP-5-03, making it suitable for various applications such as mobile devices, digital cameras, and portable game consoles. Its efficiency can reach up to 92%, making it a viable choice for power-sensitive applications.