SG3525AN

SG3525AN is the through-hole DIP-16 version of STMicroelectronics' SG3525A voltage-mode PWM controller — dual totem-pole outputs (over 200 mA source/sink; ±500 mA absolute maximum), 8 V to 35 V supply, 100 Hz to 400 kHz oscillator range, 0 to 49% maximum duty cycle per output, 5.1 V reference trimmed to ±1%, built-in soft-start, shutdown and undervoltage lockout with hysteresis, 0 to +70 °C, tube packing. Selection advice: AN is the DIP-16 for through-hole and prototype builds — SG3525AP is the identical die in SO-16 surface mount, so match the package letter to your board. The 49% duty-cycle limit per output suits push-pull and half-bridge topologies; a sync pin allows multiple units to be slaved to one clock. Evidence: ST SG3525A series features and distributor listings confirm the AN/AP order codes, 8–35 V, soft-start, adjustable deadtime, ±1% reference and 0 to +70 °C. Match the full SG3525AN code.