The XC9254R series is a group of synchronous-rectification type DC/DC converters with a built-in 0.42ΩP-channel MOS driver transistor and 0.52ΩN-channel MOS switching transistor, designed to allow the use of ceramic capacitors. Operating voltage range is from 2.0V to 6.0V. The XC9254R001 type has a fixed output voltage of 1.2V (accuracy: ±2.0%). The device provides a high efficiency, stable power supply with an output current of 600mA to be configured using only a coil and two capacitors connected externally. With the built-in oscillator, 1.2MHz is fixed internally. As for operation mode, the XC9254R series is automatic PWM/PFM switching control allowing fast response, low ripple and high efficiency over the full range of loads (from light load to heavy load). The soft start and current control functions are internally optimized. During stand-by, all circuits are shutdown to reduce current consumption to as low as 1.0μA or less. With the built-in UVLO (Under Voltage Lock Out) function, the internal P-channel MOS driver transistor is forced OFF when input voltage becomes 1.4V or lower. Two types of package SOT-25 and USP-6C are available
The XC9254R series is a synchronous‑rectification DC/DC converter featuring a built‑in P‑channel driver transistor and N‑channel switching transistor. It operates from 2.0 V to 6.0 V input and provides a fixed 1.2 V output at up to 600 mA, using a 1.2 MHz internal oscillator. The device includes PWM/PFM automatic switching, soft‑start, UVLO, and short‑circuit protection.
Two package options are offered (SOT‑25 and USP‑6C) and the converter is RoHS‑compliant. Detailed electrical characteristics, pin assignments, and typical application circuits are provided for PCB designers.
| Output Current | 600 mA |
|---|---|
| Input Voltage Range | 2.0 V – 6.0 V |
| Fixed Output Voltage | 1.2 V |
| Package Types | SOT‑25, USP‑6C |
| Operating Ambient Temperature | -40 °C to +85 °C |
| Stand‑by Current | ≤ 1.04 A |
The XC9254R001 type provides a fixed output voltage of 1.2 V.
The converter is offered in SOT‑25 and USP‑6C packages.
The device can supply up to 600 mA of output current.