LTC4444HMS8E#WPBF

Overview

The LTC4444HMS8E#WPBF is a high-frequency, high-voltage gate driver designed for synchronous DC/DC converters with supply voltages up to 100V. It drives two N-channel MOSFETs in a half-bridge configuration. The device features non-inverting inputs and operates within an extended temperature range of -40°C to +125°C. Packaged in an 8-lead MSOP with exposed pad (EP), it supports CMOS logic inputs and provides robust performance for power management applications requiring high-side and low-side driving capabilities.

Feature Summary

• Supports synchronous DC/DC converter topologies with supply voltages up to 100V
• Configured for two supply-independent inputs to drive high-side and low-side N-channel MOSFETs
• Non-inverting half-bridge gate driver architecture
• Operates reliably across an extended industrial temperature range

Applications

• Synchronous buck converters
• High-voltage motor control circuits
• Industrial power supply designs
• Automotive power management systems

Procurement Notes

Verify the specific suffix #WPBF against the manufacturer's current datasheet to confirm package type and tape/reel specifications. Ensure compatibility with your PCB footprint for the 8-MSOP-EP package. Confirm availability status as distribution channels may vary. Cross-reference pinouts with official Analog Devices documentation before integration.

Selection Notes

Select this component when designing synchronous rectification stages requiring input voltages up to 100V. The exposed pad design aids thermal dissipation. Consider the non-inverting logic requirement for control signals. Evaluate the switching frequency limits against your MOSFET gate charge requirements to ensure adequate drive strength and minimal switching losses.

Part Context

This part belongs to the LTC4444 series of high-voltage gate drivers from Analog Devices. It is engineered for efficiency in high-power density applications. The MSOP-EP package offers a compact solution for space-constrained designs while maintaining thermal performance. It complements other PMIC solutions in complex power architectures.

Replacement Considerations

Check for direct equivalents such as the LTC4444IMS8E#PBF or LTC4444EMS8E#TRPBF, ensuring pinout and electrical characteristics match. Verify that any substitute maintains the 100V rating and MSOP-EP package form factor. Consult Analog Devices for updated lifecycle status.