UCC38C45DGK

DC DC Switching Controllers Overview

The UCC38C45DGK is a BiCMOS low-power current mode PWM controller manufactured by Texas Instruments. It supports Boost, Buck, Flyback, and Forward topologies with a single output. The device operates at a switching frequency of 1 MHz and features a maximum duty cycle of 50%. It provides an output voltage of 18 V and an output current of 1 A. The supply voltage range is 7.6 V to 20 V. Operating temperature spans from 0°C to +70°C. The component is housed in an 8-VSSOP package for surface mount installation.

DC DC Switching Controllers Feature Summary

• Implements current mode control architecture for efficient power management
• Supports multiple converter topologies including boost, buck, flyback, and forward
• Features low-power BiCMOS technology for reduced energy consumption

DC DC Switching Controllers Applications

• Boost converter designs
• Buck converter implementations
• Flyback transformer applications
• Forward converter circuits

DC DC Switching Controllers Procurement Notes

Verify the specific suffix DGK corresponds to the VSSOP-8 package configuration when sourcing. Confirm RoHS compliance status through official documentation. Check for any recent product change notices or lifecycle updates that may affect long-term availability. Ensure the supplier provides valid traceability data for quality assurance purposes.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring a 1 MHz switching frequency and current mode control. The 50% maximum duty cycle limits suitability for certain high-step-up ratios. Consider the 0°C to 70°C operating range against environmental requirements. Compare pinout compatibility if replacing existing designs using similar TI controllers.

DC DC Switching Controllers Part Context

This part belongs to the UCC38C4x series of low-power current mode PWM controllers. It shares functional similarities with other members like the UCC38C40 and UCC38C45D, differing primarily in package type and minor electrical characteristics. The DGK suffix specifically denotes the small outline very thin profile package variant.

DC DC Switching Controllers Replacement Considerations

UCC38C45DGKR is available as a tape-and-reel alternative within the same family.