25 mA — what it means for the BOM
At 25 mA output, this part is sized for auxiliary or always-on bias supplies — think microcontroller Vcore standby, CAN transceiver supply, or isolated-side housekeeping. It is not a main rail regulator. The 100 kHz to 2.2 MHz switching frequency lets the designer trade inductor size against efficiency; 2.2 MHz keeps the switching noise above the AM band, useful in RF-sensitive layouts.
Temperature grade and environment
Rated for -40°C to 125°C junction temperature, the MAX17550AUB+ handles under-hood automotive, outdoor telecom cabinets, and factory-floor motor-drive compartments. The 10-uMAX/uSOP package (3.00 mm width) is a compact surface-mount footprint that suits space-constrained PCBs.
Lifecycle and sourcing posture
The MAX17550AUB+ carries an Active lifecycle status with no last-time-buy or NRND flags. ROHS3 compliant. No single-source exposure — the Himalaya series has multiple pin-compatible density options if the load changes.
