XL2525Z – PWM Controller – Xinluda

The Xinluda XL2525Z is a regulating pulse-width-modulation (PWM) controller in a SOP-16 package, pin-and-function compatible with the classic SG2525A architecture. It features dual totem-pole outputs, soft-start, and undervoltage lockout for switch-mode power supply designs.

The Xinluda XL2525Z is a regulating pulse-width-modulation (PWM) controller IC designed for fixed-frequency switch-mode power supplies. Part of Xinluda’s SG2525A-type Regulating Pulse Width Modulator family, the XL2525Z integrates a precision voltage reference, sawtooth oscillator, error amplifier, PWM comparator, soft-start, and dual totem-pole output drivers in a single SOP-16 package. It is intended as a functional equivalent for the widely used SG2525A controller, making it a practical sourcing alternative for legacy and cost-sensitive power-supply designs.

Key Features

• Regulating pulse-width modulator (PWM) controller, SG2525A-type architecture
• Operating supply voltage range: 8 V to 35 V
• Oscillator / switching frequency up to 500 kHz
• Maximum duty cycle: 49% per output
• Dual totem-pole output drivers, 500 mA output current rating
• Internal soft-start circuitry (external timing capacitor)
• Undervoltage lockout (UVLO) protection
• Suitable for buck, boost, flyback, forward, push-pull, half-bridge, and full-bridge topologies
• SOP-16 surface-mount package

Applications

• Isolated and non-isolated switch-mode power supplies (SMPS)
• Push-pull and half-bridge / full-bridge DC-DC converters
• Inverter and UPS power stages
• Industrial and telecom power modules
• Battery-powered and solar power-conversion systems
• Legacy SG2525A / SG3525A design replacements

Why Source XL2525Z from Pacific Component Xchange

The XL2525Z is a niche, Asian-market PWM controller with little to no authorized-distributor stock in North America and Europe. Pacific Component Xchange is an independent distributor specializing in hard-to-find power-management ICs and optocouplers, helping engineers and buyers secure components that mainline catalog distributors no longer carry. We support obsolete and end-of-life sourcing, authenticity and counterfeit-avoidance screening, and worldwide shipping to keep your production lines and field-repair programs running. Because the XL2525Z is offered on a request-for-quote basis, contact Pacific Component Xchange for current availability, lead time, and pricing — submit an RFQ today and our sourcing team will respond with verified stock options.