The ADP3605 is a 120 mA switched capacitor voltage inverter with regulated output. It features a regulated output voltage range of -3V to 6V, output current up to 120 mA, output accuracy of ±3%, switching frequency of 250kHz, and a typical operating temperature range of -40°C to +85°C.
The ADP3605 provides a regulated negative output voltage from a positive input without an inductor, using a switched‑capacitor charge‑pump architecture. It operates from 3 V to 6 V supply, delivers up to 120 mA output current, and features a typical shutdown current of 2 mA.
The device is offered in SO‑8 and RU‑14 packages, supports a 250 kHz switching frequency, and includes ESD protection. Detailed specifications, layout guidelines, and capacitor selection advice are provided for optimal performance.
| Operating Supply Voltage Range | 3 V – 6 V |
|---|---|
| Maximum Output Current | 120 mA |
| Typical Switching Frequency | 250 kHz |
| Shutdown Mode Current | 2 mA (typical) |
| Output Resistance (Open Loop) | 9 Ω |
| Power Dissipation (SO‑8) | 660 mW |
The ADP3605 operates at a typical switching frequency of 250 kHz.
In shutdown mode the device draws about 2 mA of current.
The ADP3605 can be powered from 3 V to 6 V.