The XCM519 series is a multi combination module IC which comprises of a 600mA driver transistor built-in synchronous step-down DC/DC converter and a low voltage input LDO regulator.
The XCM519 Series is a multi‑combination module IC that combines a 600 mA driver‑transistor‑based synchronous step‑down DC/DC converter with a low‑voltage input LDO regulator. Housed in a small USP‑12B01 package, it is suited for space‑constrained portable applications such as mobile phones, Bluetooth equipment, and handheld game consoles. The DC/DC and LDO blocks are isolated within the package to minimize noise coupling, allowing a single inductor solution that reduces board space and component count.
Key features include a wide input voltage range (2.7 V–6.0 V for the DC/DC, 1.0 V–3.0 V for the LDO), high efficiency up to 92 % typical, selectable PWM or PWM/PFM control, built‑in soft‑start and current‑limit circuits, and extensive pin‑out information for flexible design integration. Detailed electrical characteristics, ordering information, and typical application circuits are provided for designers.
| DC/DC Input Voltage Range | 2.7 V ~ 6.0 V |
|---|---|
| DC/DC Output Voltage Range | 0.8 V ~ 4.0 V |
| DC/DC Maximum Output Current | 600 mA (MAX.) |
| Typical Efficiency | 92 % (typ.) |
| Oscillation Frequency (type A) | 1.2 MHz |
| LDO Input Voltage Range | 1.0 V ~ 3.0 V |
| LDO Output Voltage Range | 0.7 V ~ 1.8 V |
| LDO Dropout Voltage | 35 mV @ 100 mA (typ.) |
| Operating Temperature Range | -40 °C ~ +85 °C |
The DC/DC converter can deliver up to 600 mA maximum output current.
Typical efficiency is 92 % under standard test conditions.
The LDO regulator operates with an input voltage range of 1.0 V to 3.0 V.