Step-down converter IRT41

isolatedembeddedvehicle

Overview
The IRT41 is an isolated DC-DC converter module that converts an unregulated 18–32V DC input to a regulated isolated 12V output up to 3A (36W). Designed for 24V-class power environments and embedded/industrial systems, it provides isolation, modular deployment capability and multiple protections for reliable operation.

Key Features

• Isolated DC-DC converter module, 12V @ 3A (36W)
• Wide input range: 18–32V DC
• High efficiency (up to 90% at full load; product documentation also references up to 94% in some notes)
• Low inrush current
• Output over-current protection (OCP) and additional safety protections

Design and protections
The IRT41 uses a high-frequency zero-voltage switching (ZVS) topology to maintain consistent efficiency across the input range. Its modular DC-DC system approach enables higher power density and reduced footprint compared with single ultra-wide-input parts. Built-in protections include OCP, OVP, UV considerations, short-circuit and thermal protection to safeguard downstream equipment and the system.

Certifications

• CE
• FCC

Applications

• Industrial automation and control systems
• 24V vehicle and transport electronics
• Communications and telecom equipment
• Embedded systems requiring an isolated 12V point-of-load (e.g., robotics, control modules)

Technical specifications

• Model: IRT41
• Input voltage: 18V to 32V DC
• Output: 12V DC, up to 3A (36W)
• Isolation: yes (input-output isolation)
• Ripple & noise: < 120 mV
• Line regulation: < ±1% (rated 18–32V input)
• Load regulation: < ±5%
• Efficiency: up to 90% (full load); documentation mentions up to 94% in some notes
• Protections: OCP, OVP, UV, short-circuit protection, thermal protection
• Operating humidity: 10% to 90% RH, non-condensing
• Operating temperature: 0°C to 50°C
• Storage temperature: -20°C to 70°C
• Altitude: 0 to 10,000 ft
• Dimensions: 114.1 x 38.6 x 19.6 mm
• Certifications: CE, FCC