The XCM524 series is a multi combination module IC which comprises of a 600mA driver transistor built-in synchronous step–down DC/DC converter and a high speed, high current LDO regulator with voltage detector function. The device is housed in small USP-12B01 package which is ideally suited for space conscious applications. The DC/DC converter and the LDO blocks are isolated in the package so that noise interference from the DC/DC to the LDO regulator is minimal. The DC/DC converter block with a built-in 0.42Ω P-channel MOS driver transistor and 0.52Ω N-channel MOS switching transistor, designed to allow the use of ceramic capacitors. The DC/DC enables a high efficiency, stable power supply with an output current of 600mA to be configured using only a coil and two capacitors connected externally. The LDO regulator block is precise, low noise, high ripple rejection, low dropout positive voltage regulators with built-in voltage detector. The LDO is also compatible with low ESR ceramic output capacitors. Good output stability is maintained during load fluctuations due to its excellent transient response. The current limiter's fold back circuit also operates as a short circuit protection for the output current. The voltage detector block of the contains delay circuit. The delay time can be controlled by an external capacitor. The detector monitors
The XCM524 series is a multi‑combination module IC that integrates a 600 mA driver transistor based synchronous step‑down DC/DC converter and a high‑speed 500 mA LDO regulator with a built‑in voltage‑detector and delay function. The device is housed in a compact USP‑12B01 package, suitable for space‑conscious applications, and isolates the DC/DC and LDO blocks to minimize noise coupling.
Key specifications include an input voltage range of 2.7 V – 6.0 V, up to 600 mA output current from the DC/DC block, 500 mA output from the LDO, typical efficiency of 92 %, and operation over –40 °C – +85 °C. The datasheet provides pin configurations, absolute maximum ratings, detailed electrical characteristics, and packaging information for designers.
| Input Voltage Range | 2.7 V – 6.0 V |
|---|---|
| DC/DC Output Current (max) | 600 mA |
| LDO Output Current (max) | 500 mA |
| Efficiency (typical) | 92 % |
| Oscillation Frequency | >1.2 MHz, 3.0 MHz |
| Dropout Voltage (typ) | 200 mV @ Vout=100 mA |
| Operating Temperature Range | -40 °C – +85 °C |
| Package | USP‑12B01 |
The XCM524 operates with an input voltage from 2.7 V to 6.0 V.
The DC/DC converter can deliver up to 600 mA of output current.
Typical efficiency is specified as 92 %.
The device is supplied in a USP‑12B01 package.