UCC28C45 BiCMOS Low-Power Current-Mode PWM Controller, SOP8
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Prices updated: 13 Oct 2026
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About this product
UCC28C45 is a BiCMOS current-mode PWM controller from Texas Instruments and an enhanced pin-to-pin replacement for the UCx84x family. It supports operation up to 1 MHz, draws low standby current and provides ±1 A peak output current for switch-mode power supply designs. It includes fast cycle-by-cycle over-current limiting and is offered in undervoltage lockout versions.
Specifications
- Operating frequency
- Up to 1 MHz / حتى 1 ميجاهرتز
- Standby current
- 50 µA (100 µA max) / 50 ميكرو أمبير (100 كحد أقصى)
- Operating current
- 2.3 mA at 52 kHz / 2.3 ميلي أمبير عند 52 كيلوهرتز
- Peak output current
- ±1 A / ±1 أمبير
- Over-current response
- 35 ns cycle-by-cycle / 35 نانو ثانية دورة بدورة
- Error amplifier reference
- 2.5 V ±1% / 2.5 فولت ±1%
- Package
- SOP8 (per listing title) / SOP8 (حسب عنوان المنتج)
Frequently asked questions
Can it replace a UCx84x-family controller?
The listing states pin-to-pin compatibility with the UCx84x and UCx84xA family. Verify the pinout, UVLO threshold version and timing in the datasheet before replacing an existing controller.
Which package should I expect?
The listing title says SOP8, while the feature list mentions VSSOP-8. Confirm the exact package with the product before finalising the PCB footprint.
