Silicon oscillator for programmable timing — no crystal needed
The LTC6992CDCB-3#TRMPBF is a silicon oscillator from the TimerBlox® family, generating frequencies from 3.81 Hz up to 1 MHz without an external crystal or ceramic resonator. That means one part covers sub-audio watchdog timers through low-MHz clock generation — the frequency is set by a single resistor, not a quartz blank. Supply current is 365 µA across the 2.25 V to 5.5 V range.
Active production — no obsolescence watch needed
Status is Active per the manufacturer — no last-time-buy window, no NRND flag. ROHS3 compliant, so it passes into European and California-restricted builds without an exemption review. Supplied on Tape & Reel (TR) or Cut Tape (CT) — the TR suffix on this order code means reel. The 6-WFDFN exposed pad package (6-DFN 2x3 mm) is a standard footprint for low-pin-count timing ICs.
Sourcing against the BOM line
Active part, no cross-reference needed — the LTC6992CDCB-3#TRMPBF is the -3 variant (PWM output with a specific duty-cycle mapping). If your BOM calls for a different duty-cycle profile, the -1 or -2 suffix variants exist in the same package and supply range, but the pinout and programming resistor formula are identical; only the output duty-cycle transfer function changes.