XD34063 – DC-DC Converter – Xinluda

The XD34063 from Xinluda is an MC34063-compatible monolithic DC-DC switching regulator controller supporting step-down, step-up, and voltage-inverting topologies with a 3-40V input range and 1.5A switch current in a DIP-8 package.

The Xinluda XD34063 is a monolithic DC-DC switching regulator control circuit, functionally compatible with the industry-standard MC34063. It integrates the core building blocks required to construct a complete switch-mode power converter, including a temperature-compensated voltage reference, a comparator, a duty-cycle-controlled oscillator with active current-limit sensing, a driver, and a high-current output switch. With a wide input voltage range and configurable output, the XD34063 supports buck (step-down), boost (step-up), and inverting power-supply designs using a minimum of external components.

The XD34063 is a drop-in equivalent for the MC34063, TD34063, and KA34063, making it a practical replacement for legacy and end-of-life designs that rely on the 34063 architecture. It is offered in a through-hole DIP-8 package, with a surface-mount SOP-8 variant available under the XINLUDA XL34063 designation.

Key Features

• MC34063-compatible monolithic DC-DC switching regulator controller
• Wide input voltage range: 3 V to 40 V
• Adjustable output voltage: 1.25 V to 28 V
• Output switch current up to 1.5 A
• Supports step-down (buck), step-up (boost), and voltage-inverting topologies
• Built-in current-limit sensing for short-circuit protection
• Pin-for-pin equivalent to MC34063, TD34063, and KA34063
• DIP-8 through-hole package (SOP-8 available as XL34063)
• RoHS compliant

Applications

• Low-power buck, boost, and inverting DC-DC converters
• Battery-powered and portable equipment power supplies
• Industrial control and instrumentation rails
• LED driver and small auxiliary power circuits
• Consumer electronics and appliance power conversion
• Drop-in replacement for legacy MC34063-based designs

Why Source XD34063 from Pacific Component Xchange

The XD34063 is a hard-to-find part with little to no authorized-distributor availability. Pacific Component Xchange specializes in sourcing scarce, obsolete, and end-of-life power-management ICs like the XD34063 for engineers and buyers who need a reliable supply. Every order is backed by our authenticity and quality-assurance process to protect your production line against counterfeit and substandard parts. With global shipping and a responsive sourcing team, we help you keep MC34063-based designs in production. Request a quote (RFQ) today and our team will confirm availability, lead time, and pricing for the quantity you need.