SG3526N SG3526 IC Reg Controller Buck/Flyback DIP-18 breadboard-Friendly IC



The SG3526 is a high-performance monolithic pulse width modulator circuit designed for fixed-frequency switching regulators and other power control applications. Included in an 18-pin dual-in-line package are a temperature compensated voltage reference, sawtooth oscillator, error amplifier, pulse width modulator, pulse metering and steering logic, and two low impedance power drivers. Also included are protective features such as soft-start and undervoltage lockout, digital current limiting, double pulse inhibit, a data latch for single pulse metering, adjustable deadtime, and provision for symmetry correction inputs.

For ease of interface, all digital control ports are TTL and B-series CMOS compatible. Active LOW logic design allows wired-OR connections for maximum flexibility. This versatile  device can be used to implement single-ended or push-pull switching regulators of either polarity, both transformerless and transformer coupled.


  • SG3526N

This item features:

  • 8V to 35V Operation
  • 5V Reference Trimmed to u00b11%
  • 1Hz to 350kHz Oscillator Range
  • Dual 100mA Source/Sink Outputs
  • Digital Current Limiting
  • Double Pulse Suppression
  • Programmable Deadtime
  • Undervoltage Lockout
  • Single Pulse Metering
  • Programmable Soft-start
  • Wide Current Limit Common Mode
  • Range TTL/CMOS Compatible Logic
  • Ports Symmetry Correction Capability
  • Guaranteed 6 Unit Synchronization

  • New and Authentic Component(s) - SG3526N Pulse Width Modulation Control Circuit.
  • Friendly Note: Be mindful of the many, inexpensive, counterfeits available on the market. 

General details:

  • We are expanding on a daily basis. If you do not see the part, or quantity of the part, you are looking for, please, let us know. We will do our best to accommodate you.