AIC1612

AIC1612 is a high efficiency step-up DC-DC converter. The start-up voltage is as low as 0.8V with operating voltage down to 0.7V. Simply consuming 20uA of quiescent current, these devices offer a built-in synchronous rec-tifier that reduces size and cost by eliminating the need for an external Schottky diode and improves overall efficiency by minimizing losses.

The switching frequency can range up to 500KHz depending on the load and input volt-age. The output voltage can be easily set by two external resistors from 1.8V to 5.5V, con-necting FB to OUT to get 3.3V, or connecting to GND to get 5.0V. In terms of design flexibil-ity, the peak current of internal switch is se-lectable (0.65A or 1.0A). AIC1612 also fea-tures a circuit that eliminates noise due to in-ductor ringing.