SG3525 PWM Controller IC (Pulse Width Modulator)

• 8 TO 35 V OPERATION
  
• 5.1 V REFERENCE TRIMMED TO ± 1 %
  
• 100 Hz TO 500 KHz OSCILLATOR RANGE
  
• SEPARATE OSCILLATOR SYNC TERMINAL
  
• ADJUSTABLE DEADTIME CONTROL
  
• INTERNAL SOFT-START
  
• PULSE-BY-PULSE SHUTDOWN
  
• INPUT UNDERVOLTAGE LOCKOUT WITH HYSTERESIS
  
• LATCHING PWM TO PREVENT MULTIPLE PULSES
  
• DUAL SOURCE/SINK OUTPUT DRIVERS

3525A is a monolithic integrated circuit that Included all of the control circuit necessary for a pulse width modulating regulator.There are a voltage reference, an error amplifier, a pulse width modulator, an oscillator, under-voltage lockout, soft start circuit, and output drivers in the chip.