XL2903 – Voltage Comparator – Xinluda

The Xinluda XL2903 is a dual differential voltage comparator in an SOP-8 package, operating over a wide 2V to 36V supply range with an open-drain output. It is an industry-standard LM2903-type device available on an RFQ basis from Pacific Component Xchange.

The XL2903 from Xinluda is a dual differential voltage comparator built for general-purpose signal comparison across a very wide supply range. As an industry-standard LM2903-type device, it pairs two independent comparators with a PNP Darlington-pair input stage and an open-drain NPN output, making it a versatile, low-cost building block for level detection, threshold sensing, and interface circuits. The XL2903 is supplied in a compact SOP-8 surface-mount package.

Its open-drain output lets designers set the output logic-low level (V_OL) with an external pull-up and supports wired-AND configurations, while the wide operating supply allows the same part to serve both low-voltage logic rails and higher-voltage industrial systems.

Key Features

• Dual independent differential voltage comparators in a single package
• Wide supply voltage range: 2V to 36V (single or split supply)
• Open-drain NPN (low-side / pull-down) output, configurable V_OL and wired-AND capable
• PNP Darlington-pair input for high gain and minimal input bias current
• Low quiescent current and fast response
• Operating temperature range: -40°C to +125°C
• SOP-8 surface-mount package
• LM2903-type / pin-compatible industry-standard function

Applications

• Voltage level and threshold detection
• Zero-crossing detectors
• Window comparators and limit alarms
• Battery and power-supply monitoring
• Oscillators and timing circuits
• Sensor signal conditioning and interface logic

Why Source XL2903 from Pacific Component Xchange

The XL2903 is a Xinluda part with little to no authorized-distributor stock in Western markets, which makes consistent supply a challenge for production and repair builds. Pacific Component Xchange specializes in hard-to-find and end-of-life power-management ICs, comparators, and optocouplers, giving you a reliable channel for components that mainstream catalogs do not carry.

Every order is backed by our authenticity and quality-assurance process, with global shipping to your line wherever you build. Whether you need a single reel or volume quantities of the XL2903, request a quote (RFQ) from Pacific Component Xchange and our sourcing team will confirm availability, lead time, and pricing for your requirement.