What the TPS40193DRCR is and where it fits
Switching frequency is fixed at 300 kHz, which balances inductor size against switching losses. The 85% maximum duty cycle supports moderate step-down ratios without pulse-skipping. Control features include an enable pin for sequencing and a power-good output for rail monitoring. The part is rated for the industrial temperature range of -40°C to 85°C, covering most factory-floor and outdoor telecom enclosures.
Package and PCB considerations
Mounting is surface-mount only. The shipping options include Tape & Reel (TR) for automated pick-and-place and Cut Tape (CT) for prototype or low-volume builds.
Sourcing and lifecycle
The TPS40193DRCR is listed as Active in production with ROHS3 compliance.