Onsemi NCP1271D65R2G NCP1271D65R2G Monolithic Switcher 20V-9.1V Supply 65 kHz 500mA out SOIC-7

The NCP1271D65R2G is a soft-skip mode Standby Pulse Width Modulation (PWM) Controller with adjustable skip level and external latch. It allows for excellent stand by power consumption by use of its adjustable esoft-skip mode and integrated high voltage startup FET. This proprietary Soft-Skip also dramatically reduces the risk of acoustic noise. This allows the use of inexpensive transformers and capacitors in the clamping network. Internal frequency jittering, ramp compensation, timer-based fault detection and a latch input make this controller an excellent candidate for converters where ruggedness and component cost are the key constraints.

• Fixed-frequency current-mode operation with ramp compensation and skip cycle in standby condition
• Timer-based fault protection for improved overload detection
• Soft-skip mode technique for optimal noise control in standby
• Internal high-voltage startup current source for lossless startup
• 5% Current limit accuracy over the full temperature range
• Adjustable skip level
• Internal latch for easy implementation of overvoltage and overtemperature protection
• Frequency jittering for softened EMI signature

Applications

Consumer Electronics, Computers & Computer Peripherals, Power Management

Warnings Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Other details

Brand	ONSEMI
Part Number	NCP1271D65R2G
Quantity	Each (Supplied on Cut Tape)
Technical Data Sheet EN
Simulation Model EN
Product Change Notice EN

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