UC2526AQG3

DC DC Switching Controllers Overview

The UC2526AQG3 is a voltage-mode PWM controller from Texas Instruments designed for multi-topology DC-DC power conversion. It supports Boost, Flyback, Forward, Full Bridge, Half Bridge, and Push-Pull configurations. The device features a switching frequency range of 1 Hz to 600 kHz with a maximum duty cycle of 49%. It operates within a supply voltage range of 7 V to 35 V and includes control characteristics such as enable, frequency control, reset, and soft start. The component is housed in a 20-PLCC (9x9) package and functions as a transistor driver with synchronous rectification capability.

DC DC Switching Controllers Feature Summary

• Supports multiple converter topologies including boost, flyback, forward, full bridge, half bridge, and push-pull
• Integrates control features such as enable, frequency control, reset, and soft start
• Capable of synchronous rectification for improved efficiency
• Designed for operation across an industrial temperature range

DC DC Switching Controllers Applications

• Multi-output power supplies requiring flexible topology support
• Industrial equipment power management systems
• Telecommunications infrastructure power units
• Automotive electronics applications

DC DC Switching Controllers Procurement Notes

Verify obsolescence status carefully as the UC2526AQG3 is listed as obsolete by Texas Instruments. Confirm availability through authorized distributors or surplus channels. Ensure compatibility with existing PCB footprints for 20-PLCC packages. Check for valid replacement components if long-term supply is required. Validate RoHS compliance documentation before integration into new designs.

DC DC Switching Controllers Selection Notes

Select this component only if legacy design compatibility with the UC2526 family is mandatory. Consider the limited availability due to obsolescence when planning production volumes. Evaluate alternative modern controllers with similar multi-topology support if new designs are feasible. Verify that the 1 Hz to 600 kHz frequency range meets specific application requirements. Assess the need for synchronous rectification features against available alternatives.

DC DC Switching Controllers Part Context

The UC2526 series represents a line of regulating pulse width modulators from Texas Instruments, formerly Unitrode. These controllers are widely used in various power conversion applications due to their versatility. The UC2526AQG3 specifically utilizes a PLCC package, distinguishing it from other variants like the UC2526N or UC2526ADWG4 which use different form factors. This part belongs to the broader PMIC category focused on DC-DC switching control.

DC DC Switching Controllers Replacement Considerations

The UC2526ADWTR is identified as a similar substitute part number. Verify pinout compatibility and electrical specifications before substitution. Ensure the alternative component meets all original design requirements regarding topology support and control features.