XL33262 – Power Factor Correction (PFC) Controller – Xinluda

The XL33262 from Xinluda is a critical-conduction-mode active power factor correction (PFC) controller in an SOP-8 package, functionally aligned with the industry-standard MC33262/MC34262 family for off-line preconverter and electronic ballast applications.

The XL33262 is an active power factor correction (PFC) controller supplied by Xinluda (Xinluda Information Technology Co., Ltd.). Its part numbering and SOP-8 packaging align it with the well-established critical-conduction-mode (CRM, also called transition-mode) PFC controller family that is functionally and pin-compatible with the industry-standard MC33262 / MC34262 devices. As a CRM boost-stage preconverter, this class of controller shapes the input current to closely follow the AC line voltage, delivering near-unity power factor and reduced line-current harmonics in off-line power supplies and electronic lighting ballasts.

As a part aligned with the MC33262/MC34262-compatible family, this class of device integrates the core control blocks required for a stand-alone CRM PFC stage: an internal startup timer, a one-quadrant multiplier for near-unity power factor, a zero-current detector to enforce critical-conduction operation, a transconductance error amplifier, a trimmed internal bandgap reference, a current-sense comparator, and a totem-pole gate-drive output suited to driving a power MOSFET. Protection features in this family include an overvoltage comparator to guard against runaway output voltage on load removal, input undervoltage lockout with hysteresis, and cycle-by-cycle current limiting. Buyers should confirm the manufacturer datasheet against their specific design before substitution, as full Xinluda-specific electrical data is not widely published.

Key Features

• Active power factor correction controller operating in critical conduction mode (CRM / transition mode)
• Functionally aligned with the industry-standard MC33262 / MC34262 PFC controller family
• Totem-pole gate-drive output for directly driving an external power MOSFET
• Output drive current up to 500 mA peak source/sink (per MC33262/MC34262 family datasheet rating)
• Internal startup timer for stand-alone operation
• Zero-current detector for critical-conduction operation and near-unity power factor
• Trimmed internal bandgap reference and transconductance error amplifier
• Undervoltage lockout with hysteresis and cycle-by-cycle current limiting
• Compact 8-pin SOP-8 surface-mount package

Applications

• Off-line switch-mode power supply (SMPS) front-end PFC boost stage
• Electronic lighting ballasts and LED driver power factor correction
• AC-DC adapters and chargers requiring harmonic / power-factor compliance
• White goods and appliance power supplies
• Industrial and lighting equipment input-stage PFC preconverters

Why Source XL33262 from Pacific Component Xchange

The XL33262 is a hard-to-find part with little to no authorized-distributor stock through mainstream Western channels. Pacific Component Xchange specializes in sourcing scarce and obsolete power-management ICs and optocouplers for buyers who cannot find supply elsewhere. We focus on authenticity and traceability, partnering with vetted suppliers to mitigate counterfeit risk, and we ship globally to support production and maintenance schedules.

Because this is a Request-For-Quote item, pricing and lead time are confirmed per order based on quantity and date-code requirements. Submit an RFQ today and our sourcing team will respond with current availability, pricing, and delivery options for the XL33262.