Torex Semiconductor, Ltd. Voltage Regulators - DC DC Switching Regulators XC9235B1LD0R-G

The XC9235B1LD0R-G is a synchronous step-down DC/DC converter designed for high efficiency and stable power supply applications. It 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. The operating voltage range is from 2.0V to 6.0V, with a fixed output voltage option ranging from 0.8V to 4.0V in 0.05V increments, and an adjustable output voltage option starting from 0.9V using external resistors. This regulator can deliver an output current of up to 600mA and operates at selectable oscillation frequencies of either 1.2MHz or 3.0MHz, depending on the application requirements. The XC9235B1LD0R-G employs PWM control for efficient operation and includes features such as a built-in soft start, current limiter, and under-voltage lockout (UVLO) to enhance reliability. It also supports low standby current consumption of 1.0OºA or less. The device is available in multiple package types, including SOT-25, USP-6C, USP-6EL, and WLP-5-03, making it suitable for various compact applications such as smartphones, mobile devices, and digital cameras. Its compatibility with ceramic capacitors further simplifies design considerations.