| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
90,400 pcs
|
90400 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The UCC28C45 from Texas Instruments is a high-performance, BiCMOS, low-power current-mode PWM controller. It is designed for switch mode power supplies and DC-to-DC converters.
Key features include operation up to 1 MHz, a low operating current of 2.3 mA at 52 kHz, and a fast 35 ns cycle-by-cycle overcurrent limiting capability. The device provides ±1 A peak output current and features rail-to-rail output swings with 25 ns rise and 20 ns fall times. It also includes a trimmed 2.5 V error amplifier reference with ±1% initial accuracy and undervoltage lockout protection.
This controller family offers enhanced replacements for the UC284xA and UC284x families, providing pin-to-pin compatibility. It is available in an MSOP-8 package, minimizing board space. The extended temperature performance ranges from -55°C to 125°C.
The UCC28C45 is suitable for applications such as switch mode power supplies, DC-to-DC converters, and board mount power modules.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.78 | $0.78 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The UCC28C45 is available in SOIC-8 and MSOP-8 surface-mount packages.
The operating temperature range is -55°C to 125°C.
The maximum operating frequency is 1 MHz.
The peak output current is ±1 A.
Standby current is 50 µA typical (100 µA maximum), and startup current is limited to 50 µA maximum.
The error amplifier reference is 2.5 V with ±1% initial tolerance.
The maximum duty cycle is 50%.