60V input, 500 mA — where this Himalaya buck sits in the power tree
The MAX17501EATB+T is a fixed 3.3 V output step-down regulator from Maxim's Himalaya series, built around a current-mode buck topology with integrated synchronous rectification. Its 60 V maximum input rating and 500 mA output current target it squarely at industrial and telecom auxiliary rails — 24 V and 48 V buses where a downstream 3.3 V rail powers an MCU, an isolated bias supply, or a sensor interface. The 600 kHz switching frequency keeps the inductor in the 10 µH to 22 µH range, balancing board area against efficiency.
125°C junction — industrial and under-hood margin
Rated for operation from -40°C to 125°C junction temperature, this part handles environments where a commercial-grade buck would derate or fail — outdoor telecom cabinets, engine-bay electronics, factory-floor motor drives. The 10-TDFN package with exposed pad (3x2 mm footprint) requires a thermal via array under the paddle to pull heat into the PCB ground plane; without it the junction climbs fast above 300 mA continuous at high ambient.
Active production — no LTB clock ticking
Listed as Active with ROHS3 compliance. The Himalaya series is Maxim's (now Analog Devices') broad industrial buck family, so die availability and package supply are well-established — no single-source fragility concerns for a production BOM.
Tape & Reel delivery — what the T suffix signals
Also available in Cut Tape for prototyping or low-volume builds. The 10-TDFN (3x2 mm) package is a 10-lead plastic dual flat no-lead with an exposed pad — MSL 1 out of the box, no bake required before reflow if the sealed bag is intact.