The ADP2102 is a low-power, low-standby-current synchronous step-down converter that features internal synchronous rectification, internal soft-start and internal compensation. The ADP2102 is available in a 3mm × 3mm LFCSP package and has a maximum load current of 600mA and a typical operating frequency of 3MHz.
The ADP2102 converts a 2.7 V to 5.5 V unregulated input to a lower regulated output with up to 95 % efficiency and 1 % accuracy. It is suited for USB‑powered devices, WLAN gateways, processor core power, digital cameras, PDAs, portable media players and GPS units. The converter operates at a typical 3 MHz frequency and uses only three external ceramic components, enabling small, low‑cost inductors and capacitors.
Key features include a low‑duty‑cycle operation, internal synchronous rectifier, soft‑start, power‑save mode, undervoltage lockout, current‑limit protection and thermal shutdown. The device is offered in fixed‑output versions (0.8 V to 1.875 V) and an adjustable version (0.8 V to 3.3 V), all in an 8‑lead LFCSP package (3 mm × 3 mm) rated for –40 °C to +85 °C.
| Input Voltage Range | 2.7 V to 5.5 V |
|---|---|
| Maximum Output Current | 600 mA |
| Efficiency | up to 95 % |
| Fixed Output Voltage Range | 0.8 V to 1.875 V |
| Adjustable Output Voltage Range | 0.8 V to 3.3 V |
| Shutdown Supply Current | 0.01 pA |
| Package | 8‑lead LFCSP, 3 mm × 3 mm |
| Operating Temperature Range | –40 °C to +85 °C |
The ADP2102 operates with an input voltage from 2.7 V to 5.5 V.
It can supply up to 600 mA of output current.
The converter achieves up to 95 % efficiency.
It is housed in an 8‑lead LFCSP package measuring 3 mm × 3 mm.