SG3525 PWM Controller IC (SOIC 16, Voltage Mode, Push Pull Output)

The SG3525 is a voltage mode Pulse Width Modulation (PWM) controller designed for switching power supplies, DC to DC converters, and inverter circuits. It integrates an oscillator, error amplifier, PWM comparator, soft start circuitry, and two alternating output drivers. These features provide controlled switching operation for power conversion and regulation applications.

Key Features -

• Voltage mode PWM control

• Alternating dual output drivers for push pull applications

• Adjustable oscillator frequency

• Integrated error amplifier for feedback regulation

• Soft start function for controlled startup

• Pulse by pulse shutdown capability

• Internal reference voltage source

• Dead time control to prevent simultaneous output conduction

• Compact 16 pin surface mount package

Specifications -

• Part Number: SG3525

• IC Type: Switching PWM Controller

• Control Method: Voltage Mode

• Package: SOIC 16, verify exact manufacturer package variant

• Output Configuration: Two alternating PWM outputs

• Oscillator: External timing resistor and capacitor

• Reference Output: Nominal 5.1V on standard variants

• Soft Start: Integrated

• Feedback Control: Integrated error amplifier

• Supply voltage and switching frequency limits: Refer to the exact manufacturer datasheet

Applications -

• Switching Mode Power Supplies (SMPS)

• DC to DC converters

• DC to AC inverter circuits

• Push pull power converters

• Battery powered power systems

• Motor control power stages

• Industrial power regulation circuits