Xinluda Information Technology Co., Ltd Electronic Parts
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The Xinluda XL3843 is a high-performance, fixed-frequency current-mode PWM controller designed for offline AC-DC and DC-DC switching power converters. Housed in a compact 8-pin SOP-8 surface-mount package, it follows the well-established UC3843/3843-series architecture, making it a familiar and easy-to-design-in building block for cost-sensitive power supply designs. The XL3843 integrates the core control functions required for current-mode operation, including under-voltage lockout (UVLO) and cycle-by-cycle over-current protection (OCP).
The XL3843 is a regional, hard-to-find part with little to no authorized-distributor coverage outside of a small number of Asia-based catalog sellers. Pacific Component Xchange specializes in sourcing scarce, obsolete and allocation-constrained power-management ICs like the XL3843 for buyers who cannot find reliable stock through mainstream channels. We focus on authenticity, traceability and global logistics so your production line is not held up by a single difficult line item.
Submit a Request for Quote (RFQ) and our sourcing team will confirm available stock, lead time, packaging and pricing for the quantity you need. Whether you require a small prototype run or volume production support, Pacific Component Xchange can help you secure the XL3843 and ship it worldwide. Contact Pacific Component Xchange today to request a quote on the Xinluda XL3843.
The XL3843 is a high-performance current-mode PWM controller from Xinluda in an 8-pin SOP-8 package. It follows the industry-standard UC3843-series architecture and is used to control offline AC-DC and DC-DC switching power supplies.
The XL3843 is part of the same 3843-series current-mode PWM controller family and uses the same fundamental control topology. It is intended as a familiar, pin-style-compatible building block for designs based on the UC3843. Always verify exact pinout, threshold and timing parameters against the XL3843 datasheet before substituting in a critical design.
The XL3843 is supplied in an 8-pin SOP-8 surface-mount package and is RoHS compliant.
Confirmed specifications include a supply voltage range of 12V to 28V, 200mA output drive current, a 52kHz switching frequency, under-voltage lockout (UVLO) and over-current protection (OCP), with an operating temperature range of -25u00b0C to +80u00b0C.
The XL3843 is a regional Xinluda part with limited authorized-distributor availability outside of a few Asia-based catalog sellers. Pacific Component Xchange specializes in sourcing exactly these kinds of scarce power-management ICs for buyers who cannot secure them through mainstream channels.
Because the XL3843 is a request-for-quote item, submit an RFQ with your required quantity. Our sourcing team will confirm current stock, lead time, packaging and pricing, and arrange global shipping.
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