ATA series includes 16 variants, each available in mini dual-in-line package for through-hole mounting or mini SMT package. All models are encapsulated and have 4:1 inputs: 9–36 V or 18–75 V. Within each category, there is choice of 5 single-output (3.3, 5, 12, 15, or 24 V) models and 3 dual-output (+5/-5 V, +12/-12 V, or +15/-15 V) models. Conversion efficiency is up to 80%, and use of 350 kHz fixed frequency switching minimizes need for external EMI filtering.