MC33680FTBR2

Voltage Regulators - DC DC Switching Regulators Overview

The MC33680FTBR2 is a dual-output boost switching regulator IC manufactured by onsemi, housed in a 32-LQFP surface-mount package. It supports two positive adjustable outputs with minimum fixed voltages of 2.7V and 5V, reaching maximums of 5V and 25V respectively. The device operates from an input voltage range of 1V to 7V for the first channel and up to 30V for the second, utilizing switch frequencies of 100kHz and 120kHz. Designed for operation between 0°C and 70°C, this non-RoHS compliant component is currently listed as obsolete.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Dual-channel boost topology providing independent positive adjustable voltage regulation
• Wide input voltage capability supporting low-voltage sources up to 30V
• Integrated synchronous-free design for simplified external component requirements

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring multi-rail power generation
• Industrial control systems needing isolated or boosted supply rails
• Automotive electronics utilizing low battery voltage inputs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized distributors due to obsolete status. Confirm RoHS compliance requirements against project specifications as this part does not meet current environmental standards. Check lead times carefully since availability may be limited to stock or last-time buy scenarios. Ensure thermal management aligns with the specified operating temperature range during integration.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Consider the dual-output configuration when designing circuits requiring simultaneous voltage boosting. Evaluate the 32-LQFP package dimensions for PCB layout constraints. Assess the 100kHz and 120kHz switching frequencies for electromagnetic interference compatibility. Review the non-synchronous rectifier design implications for efficiency and heat dissipation compared to modern alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the MC33680 family of power management integrated circuits. It serves as a specialized solution for applications demanding multiple boosted voltage rails from a single low-voltage source. The device integrates control logic and power switches into a compact form factor suitable for space-constrained designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

No public confirmed substitute part numbers are available for this obsolete component.