LTC3676HUJ#PBF

Special Purpose Regulators Overview

The LTC3676HUJ#PBF is a power management integrated circuit designed for application processors, featuring seven synchronous buck converters in a QFN-40 package. It operates with an input voltage range of 2.7 V to 5.5 V and provides adjustable output voltages from 800 mV to 5.5 V. Each converter supports up to 2.5 A of output current. The device utilizes a switching frequency between 1.125 MHz and 2.25 MHz and maintains a quiescent current of 23 uA. It functions within an extended temperature range of -40°C to +150°C.

Special Purpose Regulators Feature Summary

• Integrates seven independent synchronous buck regulators for multi-rail processor power distribution
• Supports high thermal performance with operation up to 150°C junction temperature
• Features low quiescent current consumption for efficient standby modes
• Includes shutdown control capability for power management optimization

Special Purpose Regulators Applications

• Power supply design for application processors
• Multi-voltage rail generation in embedded systems
• Industrial control boards requiring wide temperature operation

Special Purpose Regulators Procurement Notes

Verify the specific suffix '#PBF' indicates lead-free compliance when sourcing. Confirm the 'H' grade designation matches the required extended temperature range of -40°C to +150°C for your application environment. Ensure the QFN-40 package footprint aligns with your PCB layout specifications before finalizing procurement.

Special Purpose Regulators Selection Notes

Select this component when designing systems that require multiple regulated rails from a single input source. The seven-output configuration simplifies board space compared to discrete solutions. Consider the 2.5 A per channel limit and the 2.7 V minimum input voltage to ensure compatibility with your system's power architecture and load requirements.

Special Purpose Regulators Part Context

This part belongs to the LTC3676 family of power management ICs specifically engineered for complex digital loads like application processors. The HUJ variant denotes the high-temperature grade and tube packaging format. It serves as a centralized power solution, replacing multiple individual regulators to reduce component count and improve reliability in dense electronic assemblies.

Special Purpose Regulators Replacement Considerations

LTC3676IUJ#PBF offers identical electrical specifications but is rated for industrial temperatures (-40°C to +125°C) rather than the extended range of the HUJ variant.