The ADP2105/ADP2106/ADP2107 are high efficiency, low quiescent current, synchronous step-down DC-DC converters. Its input voltage range is 2.7V to 5.5V, output voltage range is 0.8V to VIN, the maximum load current is ADP2105:1A, ADP2106:1.5A, ADP2107:2A, the switching frequency is 1.2MHz.
The ADP2105, ADP2106, and ADP2107 are low‑quiescent‑current, synchronous step‑down DC‑to‑DC converters offered in a compact 4 mm × 4 mm LFCSP_VQ package. They operate from 2.7 V to 5.5 V input and deliver up to 2 A load current with efficiencies as high as 97 %. The devices switch at 1.2 MHz and feature PFM control for ultra‑low power operation at light loads.
The handbook includes detailed specifications, pin descriptions, typical performance graphs, design guidelines, component selection, PCB layout recommendations, and an evaluation board schematic. It also provides application examples for mobile handsets, PDAs, set‑top boxes, and other consumer electronics.
| Input Voltage Range | 2.7 V to 5.5 V |
|---|---|
| Maximum Load Current | 1 A (ADP2105), 1.5 A (ADP2106), 2 A (ADP2107) |
| Efficiency | up to 97 % |
| Quiescent Current | 20 pA |
| Switching Frequency | 1.2 MHz |
| Shutdown Supply Current | 0.1 pA |
| Package | 16‑lead LFCSP_VQ 4 mm × 4 mm |
The converters operate from 2.7 V to 5.5 V input.
They achieve up to 97 % efficiency.
The quiescent current is as low as 20 pA.
They are supplied in a 16‑lead LFCSP_VQ package measuring 4 mm × 4 mm.