The document introduces ADP2323, a dual 3A, 20V synchronous step-down regulator with integrated high-side MOSFET. It features a wide input voltage range, high output accuracy, flexible output configuration, and programmable switching frequency. It is suitable for applications in communications infrastructure, networking and servers, industrial and instrumentation, healthcare and medical, etc.
The ADP2323 is a dual‑output, synchronous step‑down DC‑DC regulator that integrates high‑side MOSFETs and offers flexible output configurations, including two 3 A channels or a parallel 6 A output. It operates from 4.5 V to 20 V input and supports programmable switching frequencies from 250 kHz to 1.2 MHz, with options for PWM or PFM operation and external synchronization.
The datasheet provides full specifications, absolute maximum ratings, pin descriptions, typical performance graphs, and design guidelines such as component selection, soft‑start programming, and protection features. It also includes a functional block diagram, layout dimensions, and an ordering guide for the 32‑lead LFCSP package.
| Input voltage range | 4.5 V to 20 V |
|---|---|
| Output current per channel | 3 A (dual) or 6 A (parallel) |
| Switching frequency range | 250 kHz to 1.2 MHz |
| Thermal shutdown threshold | 150 °C |
The regulator accepts an input voltage from 4.5 V up to 20 V.
It can deliver two independent 3 A outputs or a combined 6 A output in parallel mode.
The switching frequency is programmable between 250 kHz and 1.2 MHz.