UCC3803PWTRG4

DC DC Switching Controllers Overview

The UCC3803PWTRG4 is a low-power BiCMOS 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 delivers an output current of 1 A. It features a maximum duty cycle of 100%, with rise and fall times of 41 ns and 44 ns respectively. Operating temperature ranges from 0°C to +70°C. The component is housed in an SOIC-8 package (TSSOP-8 variant) for SMD/SMT installation.

DC DC Switching Controllers Feature Summary

• Implements current-mode pulse width modulation control architecture
• Supports multiple power converter topologies including boost, buck, flyback, and forward
• Features high-speed switching capabilities with nanosecond transition times

DC DC Switching Controllers Applications

• Low-power DC-DC converter designs
• Battery-powered portable electronics
• Industrial control power supplies
• Telecommunications equipment power management

DC DC Switching Controllers Procurement Notes

Verify the specific package designation when ordering, as datasheets may reference SOIC or TSSOP variants for this part number. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure that the supply voltage range aligns with system requirements, as the device typically operates within standard low-voltage limits. Cross-reference the revision suffix G4 to confirm lead-free manufacturing standards required for modern assembly processes.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring low quiescent current and compact form factors. The 1 MHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the thermal performance within the specified operating temperature range. Evaluate the current drive capability against load requirements to ensure stable operation across varying line and load conditions without exceeding the output stage limits.

DC DC Switching Controllers Part Context

This device belongs to the UCC3803 series of low-power switching controllers. It shares architectural similarities with other members like the UCC3804 but differs in pinout and specific feature sets. The series is designed for cost-sensitive applications where efficiency and size are critical. It serves as a foundational component for basic isolated and non-isolated power conversion stages in consumer and industrial markets.

DC DC Switching Controllers Replacement Considerations

The UCC3803DTRG4 is a documented substitute offering identical functionality in a different package format. Verify pin compatibility and thermal characteristics when transitioning between package types. Other family members may require schematic modifications due to differing control interfaces.