UCC5880QDFCRQ1

UCC5880QDFCRQ1 is a Texas Instruments switching-mode power-supply controller IC used in isolated offline converters, such as flyback designs. It serves as the regulation core and typically drives an external power MOSFET to implement the switching regulator.
Key points:
- Topology: Commonly used with flyback configurations in offline/adapter SMPS.
- Control: Current-mode control with features like slope compensation and fixed or programmable switching frequency.
- Protections: Includes startup/UVLO, overcurrent/short-circuit protection, overvoltage protection, and other safeguards.
- Features: Soft-start, timing/frequency control, and latch/diagnostic options are typical.
- Package: QDFCRQ1 indicates a specific TI QFN package variant.
Applications: AC-DC adapters, small power supplies, consumer electronics, and LED drivers.
Note: For exact electrical specs, pinout, recommended operating conditions, and typical application circuits, consult the UCC5880 data sheet and TI design resources.

I don’t have enough detail to give reliable equivalents. Please confirm the device function (attach the UCC5880 datasheet or state whether it’s a regulator, driver, ADC, etc.) and whether you need pin‑compatible drop‑in replacements or just functional equivalents. With that I’ll list suitable TI and cross‑vendor substitutes.

Here are the key features of TI UCC5880QDFCRQ1 (datasheet-level overview, for the UCC5880 family):
- Integrated high-voltage startup and power MOSFET for offline flyback/converter applications
- Primary-side regulation (PSR) for simplified feedback and regulation
- Current-mode PWM control with cycle-by-cycle current limiting
- Programmable switching frequency with options for spread-spectrum
- Soft-start and ramp-rate control to reduce inrush and EMI
- Multiple protection features: overcurrent/short-circuit protection, overvoltage protection, UVLO
- Thermal shutdown and thermal protection
- Enable/disable input for easy control and protection
- Robust fault handling (latch/reset, hiccup behavior typically)
- Suitable packaging in low-profile QFN (QDFCRQ1 variant)
Note: exact electrical specs (voltage ranges, frequency, current limits) are in the official datasheet.

Manufacturer: Texas Instruments (TI).
What kind of company: TI is a global semiconductor company that designs and manufactures integrated circuits and other electronic components—especially analog ICs, power management, embedded processors and microcontrollers—serving automotive, industrial, consumer and communications markets. It is headquartered in Dallas, Texas, and is publicly traded (NASDAQ: TXN).

UCC5880QDFCRQ1 is an isolated flyback controller. Typical application areas:
- Offline AC-DC power supplies and adapters (5–100 W range)
- Battery chargers and portable power supplies with isolated outputs
- Telecom and industrial power modules requiring isolated rails
- Automotive applications (12 V systems) for ECU/infotainment/sensor rails
- General low- to mid-power isolated DC–DC converters in consumer electronics

8-pin SOIC package (D) – Pb-free, RoHS-compliant, with Tape & Reel packaging.