UC3525AQTR

DC DC Switching Controllers Overview

The UC3525AQTR is a regulating pulse width modulator manufactured by Texas Instruments, designed for high-performance DC-DC switching applications. It operates within a supply voltage range of 8V to 35V and supports a maximum switching frequency of 400 kHz. The device features two outputs with a maximum duty cycle of 50% and provides an output current capability of 400 mA. It includes a precise 5.2V reference voltage and functions effectively across an operating temperature range of 0°C to 70°C. Packaged in a 20-pin PLCC format, this component integrates essential control features for robust power management.

DC DC Switching Controllers Feature Summary

• Supports multiple converter topologies including buck, boost, flyback, forward, full bridge, half bridge, and push-pull configurations.
• Integrates soft-start functionality and clock synchronization capabilities for stable system operation.
• Features enable and frequency control characteristics to facilitate flexible circuit design.

DC DC Switching Controllers Applications

• Buck converter designs
• Boost converter implementations
• Flyback power supplies
• Forward converter systems
• Push-pull amplifier circuits

DC DC Switching Controllers Procurement Notes

Verify the specific package type and pin configuration against your PCB footprint requirements, as the UC3525 series includes various packages such as PDIP, SOIC, and PLCC. Ensure that the selected variant matches the thermal and mechanical constraints of your assembly process. Confirm that the operating temperature range aligns with your environmental specifications. Cross-reference the datasheet electrical parameters to validate compatibility with your input voltage and load requirements before finalizing procurement decisions.

DC DC Switching Controllers Selection Notes

Select the UC3525AQTR when a dual-output PWM controller is required for complex power architectures supporting multiple converter topologies. Consider this component for designs needing integrated soft-start and clock synchronization to enhance system stability. Evaluate the 400 kHz switching frequency limit against your size and efficiency targets. Ensure the 8V to 35V supply range fits your available power rails. Compare alternative packages like SOIC or PDIP if surface mount or through-hole installation preferences differ from the PLCC form factor.

DC DC Switching Controllers Part Context

The UC3525A belongs to the UC3525 family of regulating pulse width modulators from Texas Instruments. This series is widely utilized in industrial and commercial power supply designs requiring versatile topology support. The AQTR suffix indicates a tape-and-reel packaging option suitable for automated surface-mount assembly processes. It serves as a core control element in converting DC voltages efficiently across various standard converter configurations.

DC DC Switching Controllers FAQ

What is the maximum switching frequency supported by the UC3525AQTR?

The UC3525AQTR supports a maximum switching frequency of 400 kHz.

Does the UC3525AQTR include soft-start functionality?

Yes, the device integrates soft-start capabilities to manage inrush currents during startup.