Synchronous switch-mode supercapacitor charger – 5V to 28V input
The BQ24640RVAR is a dedicated synchronous switch-mode charger IC for supercapacitor stacks, accepting an input rail from 5V to 28V. This wide input range lets it draw from a regulated 5V bus, a 12V supply, or an unregulated 24V industrial rail without a pre-regulator.
16-VQFN (3.5x3.5) – small footprint with thermal pad
Housed in a 16-VQFN (3.5x3.5) package with an exposed pad, the BQ24640RVAR fits tight PCB layouts common in portable or embedded supercapacitor modules. The IC draws a supply current of 1mA, a low overhead that matters in always-on or low-power standby systems where every milliamp counts.
Active lifecycle – no obsolescence watch needed
The part is ROHS3 Compliant, covering the latest EU restriction requirements — no exemption expiry concern for new designs.