Dual-output automotive buck for ECU rails
The MAX20019ATBA/V+T is a dual-channel step-down (buck) switching regulator. It delivers two fixed output voltages — 3.3 V on one channel and 1.8 V on the other — each rated for 500 mA continuous output current. The part operates from a 3.5 V to 17 V input bus.
Switching frequency and external component sizing
The 3.2 MHz switching frequency is fixed; there is no SYNC pin for external clock synchronisation. The part does not include internal synchronous rectification — an external Schottky diode per channel is required in the BOM.
Lifecycle and compliance
The MAX20019ATBA/V+T is listed as Active in production and ROHS3 compliant. For BOM planning, this part is currently available through independent distribution channels and is quoted to order against an RFQ.
