The XBL-UC3845B+ by Xinbole is a high-efficiency current-mode PWM controller IC designed for precise power regulation in switch-mode power supplies (SMPS) and DC-DC converter applications. Housed in a compact SMD-8 package, this controller delivers accurate duty cycle control and stable high-frequency switching performance, making it ideal for modern power electronics designs.
Based on advanced current-mode control architecture, the XBL-UC3845B+ ensures fast transient response, improved line and load regulation, and enhanced overall system stability. It features an internal fixed-frequency oscillator, high-gain error amplifier, and precision voltage reference for consistent and reliable operation.
The device includes built-in undervoltage lockout (UVLO) for safe startup and shutdown, along with cycle-by-cycle current limiting to protect against overcurrent conditions. Its low startup current design helps reduce power consumption, improving overall efficiency.
Widely used in power adapters, battery chargers, LED drivers, industrial power supplies, and embedded power systems, the XBL-UC3845B+ Xinbole PWM controller IC offers a dependable and cost-effective solution for efficient power conversion.
Key Features:
- Current-mode PWM controller IC
- Fixed-frequency oscillator
- Low startup current design
- Built-in undervoltage lockout (UVLO)
- High-gain error amplifier
- Cycle-by-cycle current limiting protection
- Precision voltage reference
- Compact SMD-8 package
Applications:
- Switch-mode power supplies (SMPS)
- AC-DC and DC-DC converters
- Battery chargers
- LED driver circuits
- Power adapters
- Industrial power control systems
- Embedded power management solutions
- Consumer electronics power supplies
