Wide-input PWM controller for multi-topology power stages
The TL5001AIP is a PWM controller from Texas Instruments covering buck, boost, and flyback topologies with a single 3.6 V to 40 V supply range. That 40 V ceiling means it can regulate from a 24 V industrial rail with headroom for transients, or step down from a 36 V battery string without an external pre-regulator. Switching frequency is programmable from 20 kHz to 500 kHz, so the designer can trade inductor size against switching losses — 100 kHz suits a through-hole flyback transformer, while 400 kHz shrinks a buck inductor to a surface-mount footprint. The 100 % maximum duty cycle allows the output to follow the input rail within the dropout of the external pass transistor — useful in battery-powered boost converters where every millivolt of headroom extends run time.
Housed in an 8-pin PDIP (0.300-inch body), the through-hole package is breadboard- and prototype-friendly. The 7.62 mm row spacing matches standard perfboard and 0.1-inch-pitch proto-typing grids, and the wide pin pitch simplifies hand-soldering and rework. Output configuration is positive, single-phase, transistor-driver type — the controller drives an external N-channel or P-channel switch, not the load directly. The control block includes dead-time control and frequency control pins for adjusting the power-stage timing.
Supplied in tube packaging (standard 8-DIP tube), suitable for through-hole assembly lines and manual insertion. No synchronous rectifier or clock-sync capability — this is a conventional voltage-mode controller for cost-sensitive isolated and non-isolated designs.