MID04W0503AGY-3R 4.5-5.5V Isolated DC/DC Converter SOIC

MID04W0503AGY-3R 4.5-5.5V Isolated DC/DC Converter SOIC

The MID04W0503A is a regulated, isolated DC/DC converter that can support 4.5V to 5.5V input voltage (VIN) applications across a -40°C to +125°C operating temperature range.

Key Specifications

Features

• 4.5V to 5.5V Operating Input Voltage (VIN) Range
• 1.5KVDC or 3kVDC Isolation Voltage
• Up to 0.4W Output Power (POUT)
• Max 38% Efficiency at Full Loads
• 0.3% Load Regulation
• 0.1% Line Regulation
• Excellent Transient Response
• Continuous Short-Circuit Protection (SCP) with Hiccup Mode
• Over-Temperature Protection (OTP)
• Meets CISPR32 Class B Emissions

Typical Application Circuit

Applications

• Industrial Automation Systems
• Isolated Bias Power for Digital Isolators
• Isolated Bias Power for RS-485, RS-422, and CAN Interfaces
• Isolated Sensor Power Supplies

Design Notes

• The isolation rating is only valid if the PCB keeps the required creepage and clearance across the barrier — the package alone does not guarantee it.
• Common-mode transient immunity matters more than DC withstand in motor and gate-drive applications; check the dV/dt figure.
• Decouple both sides independently, with the capacitor returned to that side's ground.
• Propagation delay and pulse-width distortion set the timing margin in a closed loop.

Common Questions