XL4310 – Voltage/Current Regulation Controller (Dual Op-Amp + 2.5V Reference) – Xinluda

The Xinluda XL4310 is a monolithic IC combining two operational amplifiers and a 2.5V precision shunt voltage reference, designed to regulate the output current and voltage of switching battery chargers and power supplies. Supplied in an SOP-8 package.

The Xinluda XL4310 is a monolithic integrated circuit specifically designed to regulate the output current and voltage levels of switching battery chargers and power supplies. It integrates two operational amplifiers together with a 2.5V precision shunt voltage reference, providing the building blocks needed for accurate constant-voltage (CV) and constant-current (CC) control loops in a single SOP-8 package. Op Amp 1 is dedicated to voltage control, with its non-inverting input internally tied to the shunt regulator output, while Op Amp 2 handles current control with uncommitted inputs for flexible sensing. The XL4310 is functionally aligned with the widely used AP4310-type architecture.

Key Features

• Two operational amplifiers plus an on-chip 2.5V precision shunt voltage reference
• Wide supply voltage range of 3V to 36V
• Low input offset voltage: 0.5mV typical (3mV maximum)
• Gain-bandwidth product of 1MHz
• Output current capability up to 40mA
• Low quiescent current of approximately 150µA
• Common-mode rejection ratio of 85dB
• Wide operating temperature range of -40°C to +105°C
• SOP-8 surface-mount package, RoHS compliant

Applications

• Switching battery charger current and voltage regulation
• Constant-voltage / constant-current (CV/CC) charging circuits
• Switching power supply feedback and error amplification
• Adjustable linear and switching regulator control loops
• General-purpose precision op-amp and reference applications

Why Source XL4310 from Pacific Component Xchange

The XL4310 is a regional part with little to no authorized-distributor availability outside of select Asian channels, which makes it difficult to source reliably for production and repair needs. Pacific Component Xchange specializes in hard-to-find and obsolete power-management ICs and helps engineers and buyers secure exactly the parts their designs require. We focus on authenticity, traceability, and dependable global shipping so you can keep your battery-charger and power-supply builds on schedule.

Need the XL4310 or an AP4310-compatible alternative? Request a quote (RFQ) today and our sourcing team at Pacific Component Xchange will respond quickly with availability, lead time, and pricing.