TOP258PN AC-DC offline Switcher IC

TOP258PN AC-DC offline Switcher IC 

The TOP258PN is a highly integrated AC-DC off-line switcher IC from Power Integrations’ TOPSwitch family, designed for building efficient, compact, and reliable switch-mode power supplies (SMPS). It integrates a high-voltage power MOSFET, PWM controller, oscillator, soft-start, and comprehensive protection features into a single device, significantly reducing component count and simplifying power supply design.

The TOP258PN is suitable for medium to higher power SMPS designs, offering high efficiency, low standby power consumption, and excellent thermal and electrical performance. It is widely used in adapters, chargers, industrial power supplies, and auxiliary power modules.

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Applications

• AC-DC adapters and chargers
• Switch-mode power supplies (SMPS)
• Industrial control and automation power supplies
• Consumer electronics and home appliances
• LED power supplies
• TV, monitor, and set-top box power supplies
• Auxiliary and standby power supplies

Features

• Type: AC-DC off-line switcher IC with integrated MOSFET
• Family: Power Integrations TOPSwitch
• Integrated high-voltage power MOSFET
• Wide AC input range: 85–265V AC (with proper design)
• High efficiency and low no-load power consumption
• Built-in soft-start, current limiting, thermal shutdown, and over-voltage protection
• Auto-restart fault protection
• Frequency jittering for reduced EMI
• Requires minimal external components
• Package: DIP-8 (PN package)
• High reliability and long service life