Single-gate buffer for mixed-voltage and high-drive signal paths
The Texas Instruments SN74LVC1G34DBVTG4 is a single-gate non-inverting buffer from the 74LVC logic family, in a SOT-23-5 package. The push-pull output delivers 32 mA source and sink current, enough to drive LED indicators, relay coils through a transistor, or fan out to multiple CMOS inputs on a short PCB trace. The single-gate format saves board area when only one buffer lane is needed — no unused gates to terminate or bypass.
Supply voltage flexibility and drive strength
At 3.3 V the 32 mA output drive can sink or source enough current to switch a small-signal MOSFET gate or drive a status LED through a 100 Ω series resistor. The 74LVC family's 5 V tolerant inputs allow the buffer to accept 5 V signals even when powered at 3.3 V, which simplifies interfacing older 5 V peripherals to a lower-voltage controller.
Package and footprint for assembly planning
The SN74LVC1G34DBVTG4 is supplied in a SOT-23-5 package (also designated SC-74A / SOT-753). MSL level is typical for this package class. The DBV suffix indicates the SOT-23-5 package variant, and the G4 denotes lead-free (RoHS) finish.
This is a standard catalog part with broad distribution coverage. For BOM planning, the base product number 74LVC1G34 covers multiple package and tape options — the DBVTG4 variant is the SOT-23-5, lead-free, tape-and-reel version.