PTB48540CAS [Texas Instruments]

The PTB48540 series is a 10-W power module designed for Power-over-Ethernet (PoE) applications, compliant with IEEE Std. 802.3af. It integrates a DC/DC converter, PoE-PD interface switch (TPS2375), EMI filter, and transient suppression. Features include input voltage range of 36 V to 57 V, output voltage options (3.3 V, 5 V, 12 V), efficiency up to 85%, 1500 VDC isolation, output voltage trim/adjust, under-voltage lockout, short-circuit protection, over-temperature shutdown, and output inhibit control. Target applications include small low-power remote IP appliances such as security card readers, cameras, test dongles, and IP phone consoles.