Automotive PMIC for 2.8-V to 5.5-V rails — five buck converters in a single 56-VFQFN
The Texas Instruments TPS65941421RWERQ1 is an automotive-grade power management IC integrating five buck converters in a 56-VFQFN Exposed Pad package.
The 3V to 5.5V input range covers the standard automotive battery voltage during cranking (down to ~3V) and normal operation (up to 5.5V). The 19mA supply current is the IC's own consumption, not the output load — budget it against the system's quiescent current target for key-off scenarios.
ROHS3 compliant.
56-VFQFN with wettable flank — layout and assembly notes
The 56-VFQFN Exposed Pad package (8x8 mm, 56-VQFNP per the supplier device code) uses a wettable flank finish for automated optical inspection (AOI) of solder joints — a requirement for automotive assembly lines.