DPA423GN

Special Purpose Regulators Overview

The DPA423GN is a high-voltage integrated circuit from the DPA-Switch family, designed for isolated DC/DC conversion. It accepts an input voltage range of 16 V to 75 V and provides a single fixed output channel at 16 V with a current capacity of 2.3 mA. The device delivers 13 W of output power and features galvanic isolation. It is housed in an 8-SMD surface-mount package with dimensions of 9.32 mm length, 6.1 mm width, and 3.18 mm height. The component operates within a temperature range of -40 °C to +150 °C.

Special Purpose Regulators Feature Summary

• Integrates high-voltage switching controller and power MOSFET into a single monolithic chip
• Includes proprietary frequency jittering to reduce electromagnetic interference (EMI)
• Features internal startup circuitry eliminating the need for external start-up resistors

Special Purpose Regulators Applications

• Ethernet Power Over Ethernet (PoE) applications
• Telecommunications power supplies
• Industrial isolated DC/DC converters

Special Purpose Regulators Procurement Notes

Verify that the specific suffix matches the required packaging format, as 'GN' indicates the standard tube or reel configuration depending on the distributor's listing. Confirm RoHS compliance status through the manufacturer's latest environmental declaration. Ensure the ordering part number aligns exactly with the datasheet revision to avoid pinout or functional discrepancies during integration.

Special Purpose Regulators Selection Notes

Select this component when designing isolated power stages requiring input voltages between 16 V and 75 V. The fixed 16 V output limits flexibility but simplifies design for specific downstream loads. Consider the thermal performance of the 8-SMD package for high-temperature environments up to 150 °C. Utilize PI Expert software for accurate transformer design and efficiency optimization.

Special Purpose Regulators Part Context

The DPA423GN belongs to the DPA-Switch family, which combines a high-voltage power switch with a control IC. This series targets cost-sensitive, high-volume applications where board space and component count are critical constraints. The family offers various output voltage options, with the DPA423 specifically providing a fixed 16 V output for standardized telecom and PoE architectures.

Special Purpose Regulators Replacement Considerations

DPA423PN serves as a through-hole alternative within the same family. DPA423R-TL offers a TO-263-7C package option. Verify pin compatibility and thermal characteristics before substituting.