UC3845 SMD PWM Controller IC – High-Speed Current Mode, SOIC-8 Package

The UC3845 SMD PWM Controller IC is a high-performance, surface-mount solution for power supply designs requiring efficient current-mode control. Housed in a compact SOIC-8 package, this controller is ideal for modern switch-mode power supplies (SMPS), offering low startup current, fast response, and robust protection features.

Key Features:

• SMD Version – SOIC-8 Package: Compact for modern circuit designs

• Current-Mode Control: Enhanced load regulation and fast transient response

• Low Start-Up Current: <1 mA for low standby power consumption

• High Frequency Operation: Up to 500 kHz switching

• Built-in Protections: Under-voltage lockout (UVLO), overload protection, thermal stability

Specifications:

• Input Voltage: 8.5V to 30V

• UVLO Threshold: 8.5V on / 7.9V off (typ.)

• Output Drive Capability: ±1A peak

• Oscillator Frequency: Programmable up to 500 kHz

• Package Type: SOIC-8 (SMD)

Applications:

• Switch-mode power supplies (SMPS)

• DC-DC converters

• Battery chargers

• LED drivers

• Industrial control systems

The UC3845 in SMD (SOIC-8) form is perfect for compact, high-efficiency designs where board space is at a premium. Ideal for both prototyping and production.