SG2525AN ST DC-DC Controllers

The SG2525AN is a regulating pulse width modulator IC from STMicroelectronics for DC-DC switch-mode power supply control in a 16-pin DIP package, supporting buck and push-pull topologies . For selection, verify supply voltage from 8V to 35V, confirm oscillator frequency range from 100Hz to 400kHz (adjustable), note maximum duty cycle of 49% (preventing transformer saturation in push-pull designs), output sink/source capability of 500mA, reference voltage of 5.1V ±1% accuracy, and operating temperature from -25°C to +85°C . Features include soft-start capability, under-voltage lockout with hysteresis, synchronous oscillator input for multiple-unit synchronization, dead-time adjustable control, and totem-pole output stage for direct MOSFET/IGBT drive. Ideal for DC-DC converters, push-pull switching power supplies, battery chargers, inverter circuits, and industrial power control systems requiring high-performance PWM control. In stock at HL Electronics – request a quote for fast delivery.