UCC28C45D Texas Instruments power-management (SOIC-8) In Stock
UCC28C45D is a BiCMOS current-mode PWM controller from Texas Instruments, operating up to 1MHz with 1A totem-pole gate drive output, SOIC-8 package, -40C to 85C range. In stock from $0.55, MOQ 315, global shipping.
- Manufacturer
- Texas Instruments
- Package
- SOIC-8
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UCC28C45D Datasheet PDF
- Category
- power-management
- Price
- From $0.5512(MOQ 315)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Applications
UCC28C45D is widely used in offline flyback and forward converters, DC-DC power supplies, and telecom power modules requiring precise current-mode control. Its 1MHz capability suits compact, high-efficiency SMPS designs in industrial, telecom, and consumer electronics.
Specifications
| Supply Voltage (Vcc) | 10V to 25V |
| Switching Frequency | up to 1MHz |
| Output Current | 1A peak (totem-pole) |
| Operating Temperature | -40C to +85C |
| Package | SOIC-8 |
| Control Topology | Current Mode PWM |
| Startup Current | less than 1mA |
| Max Duty Cycle | 100% adjustable |
| Package | SOIC-8 |
Compliance & Regulatory
| RoHS Status | Compliant |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UCC28C45D:
Frequently Asked Questions
What is the maximum switching frequency of UCC28C45D?
The UCC28C45D supports switching frequencies up to 1MHz, set by an external resistor and capacitor on the RT/CT pins. This high-frequency capability enables smaller magnetics and more compact power supply designs compared to legacy 500kHz controllers.
What package and pin count does UCC28C45D come in?
UCC28C45D is available in an 8-pin SOIC (Small Outline Integrated Circuit) package with 1.27mm pitch. This standard footprint is fully compatible with UC3845 and similar current-mode PWM controllers, simplifying drop-in replacements on existing PCB layouts.
What are common applications for UCC28C45D?
UCC28C45D is commonly used in offline flyback converters, forward converters, DC-DC buck/boost regulators, and telecom rectifiers. Its current-mode control with cycle-by-cycle limiting makes it ideal for power supplies requiring tight regulation and built-in overcurrent protection.
What is the operating temperature range of UCC28C45D?
UCC28C45D operates over an industrial temperature range of -40C to +85C, making it suitable for demanding industrial, telecommunications, and commercial applications where wide ambient temperature variation is expected.
What are compatible alternates for UCC28C45D?
Compatible alternatives include UC3845D (TI, pin-compatible, 500kHz), NCP1200 (ON Semiconductor), and UC2842B (STMicroelectronics). All share current-mode PWM topology with SOIC-8 pinout, though frequency range and BiCMOS process details differ — verify datasheet before substitution.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 315+ | $0.6360 | $200.34 |
| 410+ | $0.6148 | $252.07 |
| 545+ | $0.5512 | $300.40 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”