The Texas Instruments TL5001ACD is a PWM controller IC that handles step-up, step-down, and step-up/step-down conversion across buck, boost, and flyback topologies. Its 3.6 V to 40 V supply range lets it work from a 5 V regulated rail or an unregulated 24 V industrial bus without an external pre-regulator. The 20 kHz to 500 kHz switching frequency range gives the designer room to trade off inductor size against switching losses — lower frequencies suit through-hole magnetics, higher frequencies shrink the footprint.
Package and board-fit for the rework bench
It ships in a tube — expect the standard 8-SOIC moisture sensitivity level (MSL 1 or 2a) that does not require baking before reflow for typical floor-life exposure. The -20°C to 85°C operating temperature range covers most indoor industrial and telecom environments but does not extend to automotive under-hood or extended outdoor enclosure duty.
RoHS3 compliant, with no exemption conflicts for EU or UKCA markets.
Control features for the systems architect
Dead-time control and frequency control pins let the designer set the overlap between the high-side and low-side drive signals and synchronize the oscillator to an external clock, respectively. The 100% duty-cycle capability means the controller can run the external transistor fully on — useful in boost converters where the inductor charges continuously during startup or overload. Output configuration is positive, single-phase, transistor-driver type — it needs an external N-channel or P-channel MOSFET as the switching element, not an integrated FET.