XD3525 – PWM Controller – Xinluda

The Xinluda XD3525 is a regulating pulse-width-modulation (PWM) controller in a DIP-16 package from the industry-standard SG3525 family. It integrates a reference, oscillator, error amplifier, soft-start, under-voltage lockout, and dual 500mA totem-pole outputs for driving switching power supplies.

The Xinluda XD3525 is a monolithic regulating pulse-width-modulation (PWM) controller designed for switch-mode power-supply applications. It belongs to the well-established SG3525 / SG3525A family and is offered as a cost-effective, pin-compatible alternative to parts such as the SG3525AN, KA3525A and UC2525A. Housed in a 16-pin dual-in-line (DIP-16) package, the XD3525 combines the control circuitry required to build a complete push-pull, half-bridge or full-bridge converter onto a single chip.

The device integrates an on-chip oscillator, a high-gain error amplifier, internal soft-start, under-voltage lockout, and two alternating totem-pole outputs capable of sourcing and sinking 500mA each. The complementary outputs are well suited to driving power MOSFETs or bipolar transistors directly in transformer-coupled topologies.

Key Features

• Regulating pulse-width-modulator (PWM) controller, SG3525A-compatible
• Supply (Vin) operating range: 8V to 35V
• Dual alternating totem-pole outputs, 500mA source/sink each
• Oscillator / switching frequency range: 100Hz to 400kHz
• Internal soft-start circuitry
• Under-voltage lockout (UVLO) protection
• Maximum duty cycle approximately 49% per output
• Power dissipation: up to 1000mW
• Operating temperature range: -40°C to +85°C
• 16-pin DIP (DIP-16) package, RoHS compliant

Applications

• Push-pull, half-bridge and full-bridge switch-mode power supplies (SMPS)
• DC-DC converters and isolated power modules
• Inverters and uninterruptible power supplies (UPS)
• Battery chargers and industrial power conversion
• Motor control and LED lighting power stages

Why Source XD3525 from Pacific Component Xchange

The Xinluda XD3525 is an Asian-brand part with limited authorized-distributor coverage, which can make it difficult to source reliably for production runs and repairs. Pacific Component Xchange specializes in hard-to-find and end-of-life power-management ICs, helping engineers and procurement teams secure parts that mainline catalog distributors no longer stock. Every order is backed by our authenticity and quality-assurance program to guard against counterfeit and re-marked components, and we ship globally to meet your build schedule.

Because the XD3525 is offered on a request-for-quote (RFQ) basis, pricing and lead time are quoted per order against current availability. Submit an RFQ to Pacific Component Xchange today for the XD3525 and let our sourcing specialists confirm stock, pricing, and delivery for your quantity.