Single open-drain buffer for mixed-voltage and level-shifting
The open-drain output sinks up to 32mA, enough for driving LEDs, relay coils through a transistor, or signalling lines in industrial control panels.
What the 32mA sink and 1.65V–5.5V supply mean for your BOM
The 32mA sink rating is the headline number for this part. It tells you the output can pull a line low with enough current to drive a standard LED (typically 10–20mA) or to saturate a small-signal NPN transistor. The open-drain topology means the output high level is set by an external pull-up resistor to whatever voltage the downstream logic needs — 1.8V, 2.5V, 3.3V, or 5V — so the same part can level-shift between domains. The supply range from 1.65V to 5.5V covers the common digital rails: 1.8V, 2.5V, 3.3V, and 5V. If your design already uses 3.3V or 5V for the rest of the 74LVC family, this buffer drops in without a separate regulator.
Package and footprint: SOT-23-5
The SN74LVC1G07DBVRE4 comes in a SOT-23-5 package (also designated SC-74A). It is a five-pin surface-mount package with a 0.95 mm pitch, standard for single-gate logic. The footprint is shared across many 74LVC1Gxx devices, so a board layout can accommodate multiple single-gate functions without respinning the PCB.