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NCP1217D133R2 from ON,ON Semiconductor

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NCP1217D133R2

Manufacturer: ON

Enhanced PWM Current-Mode Controller for High-Power Universal Off-Line Supplies

Partnumber Manufacturer Quantity Availability
NCP1217D133R2 ON 2500 In Stock

Description and Introduction

Enhanced PWM Current-Mode Controller for High-Power Universal Off-Line Supplies # Introduction to the NCP1217D133R2  

The **NCP1217D133R2** is a high-performance current-mode PWM controller designed for offline power supply applications. This integrated circuit (IC) is widely used in switch-mode power supplies (SMPS), offering precise regulation and efficient power conversion.  

Key features of the NCP1217D133R2 include a fixed-frequency operation, adjustable output voltage, and built-in protections such as overcurrent and overvoltage detection. Its current-mode control ensures stable performance under varying load conditions, making it suitable for applications like AC-DC adapters, LED drivers, and auxiliary power supplies.  

The device operates with a minimal external component count, simplifying circuit design while maintaining high reliability. Its low standby power consumption aligns with modern energy efficiency standards, making it an ideal choice for eco-conscious designs.  

With a compact SOIC-8 package, the NCP1217D133R2 is well-suited for space-constrained applications. Engineers value its robustness, ease of implementation, and consistent performance in demanding environments.  

For designers seeking a dependable PWM controller for offline power conversion, the NCP1217D133R2 provides a balanced combination of efficiency, protection features, and design flexibility.

Application Scenarios & Design Considerations

Enhanced PWM Current-Mode Controller for High-Power Universal Off-Line Supplies

Alternative Part Number

  • UC3842BD1R2G --: Industry-standard current-mode PWM controller in SOIC-8, widely used as a functional substitute for fixed-frequency flyback controllers like the NCP1217; same manufacturer and package family.
  • SG6848D --: Current-mode PWM controller for offline flyback converters with comparable drive and protection features, commonly cross-referenced for NCP12xx designs.
  • OB2263MP --: Low-cost current-mode PWM controller for AC-DC flyback adapters, pin-function compatible with typical NCP1217 applications and available in SOT-23-6/SOIC packages.

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