LTM2881HV-3#PBF

Overview

The LTM2881HV-3#PBF is a high voltage isolated DC/DC module from Analog Devices, designed for industrial applications requiring galvanic isolation. It integrates a switching regulator and transformer into a compact package. The device provides a fixed output voltage of 3.3V with an input range supporting high voltage sources. Key specifications include up to 1W output power and isolation voltages rated for harsh environments. It features wide operating temperature ranges suitable for demanding industrial settings.

Feature Summary

• Integrated high voltage isolated DC/DC converter
• Compact micro-module form factor
• Wide input voltage range capability
• High isolation voltage rating

Applications

• Industrial automation systems
• Medical equipment power supplies
• Test and measurement instrumentation
• Telecommunications infrastructure

Procurement Notes

Verify the specific suffix 'HV-3' matches the required input/output configuration. Confirm package type PBF indicates lead-free compliance. Check datasheet for thermal management requirements under load. Ensure supply voltage limits are respected during integration. Validate isolation ratings against system safety standards.

Selection Notes

Consider the fixed 3.3V output constraint when designing power rails. Evaluate thermal performance based on ambient conditions and load current. Assess footprint compatibility with PCB layout constraints. Review transient response characteristics if driving sensitive digital loads. Compare efficiency metrics against alternative discrete solutions for cost optimization.

Part Context

This component belongs to Linear Technology's (now Analog Devices) LTM28xx series of isolated modules. These modules simplify design by integrating magnetic components and control circuitry. The HV variant specifically targets high common-mode voltage applications. This series replaces complex discrete designs with reliable, pre-tested solutions.

Replacement Considerations

Check for direct pin-compatible alternatives within the LTM28xx family. Verify equivalent isolation ratings and output power capabilities. Ensure thermal characteristics match existing board designs. Confirm regulatory approvals remain valid for the substitute part.