The ADP2325 is a full featured dual 5 A, 20 V synchronous step-down regulator with integrated high-side MOSFET, flexible output configuration, programmable switching frequency, external synchronization input, selectable PWM or PFM mode operation, adjustable current limit, external compensation and soft start. It is widely used in communications infrastructure, networking and servers, industrial and instrumentation, healthcare and medical, intermediate power rail conversion and more.
The ADP2325 is a full‑featured dual‑output step‑down DC‑DC regulator built on a current‑mode architecture. It integrates two high‑side MOSFETs and provides flexible output configurations, including dual 5 A channels or a parallel 10 A output, with programmable switching frequency from 250 kHz to 1.2 MHz and optional synchronization to an external clock.
The datasheet includes detailed specifications, absolute maximum ratings, thermal resistance data, pin‑out descriptions, typical application circuits, and packaging/ordering information for the 32‑lead LFCSP_WQ package. Protection features such as UVLO, OVP, over‑current protection and thermal shutdown are also described.
| Input voltage range | 4.5 V to 20 V |
|---|---|
| Output current per channel | 5 A (dual) or 10 A (parallel) |
| Switching frequency range | 250 kHz to 1.2 MHz |
| Operating temperature range | -40 °C to +125 °C |
| Package type | 32‑lead LFCSP_WQ |
| Thermal shutdown threshold | 150 °C |
| Synchronization input frequency range | 300–1200 kHz |
The regulator operates from 4.5 V up to 20 V input.
It can deliver dual 5 A outputs or a single 10 A output when the two channels are paralleled.
The switching frequency is programmable from 250 kHz to 1.2 MHz, or it can be synchronized to an external clock.
The device provides undervoltage lockout, overvoltage protection, over‑current protection, and thermal shutdown.