Torex Semiconductor, Ltd. Voltage Regulators - DC DC Switching Regulators XC9236B3HDMR-G

The XC9236B3HDMR-G is a synchronous step-down DC/DC converter designed for high efficiency and stable power supply applications. It operates within an input voltage range of 2.0V to 6.0V and can provide a fixed output voltage of 3.65V with a maximum output current of 600mA. The device features 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 enhances efficiency across varying load conditions. It includes a soft start function, current limiting, and an under-voltage lockout (UVLO) feature to protect the circuit during low input voltage conditions. The XC9236B3HDMR-G is available in a compact SOT-25 package, making it suitable for space-constrained applications such as mobile devices, Bluetooth devices, and portable game consoles.