XH2576-5.0 – DC-DC Converter – Xinluda

The Xinluda XH2576-5.0 is a monolithic step-down (buck) switching regulator delivering a fixed 5.0V output at up to 3A, with a 52kHz internal oscillator in a TO-263-5 package. Available for quote at Pacific Component Xchange.

The XH2576-5.0 from Xinluda is a monolithic integrated circuit that provides all the active functions required for a step-down (buck) switching regulator. It is the fixed 5.0V output member of the XH2576 series, capable of driving a 3A load with excellent line and load regulation. As a part based on the industry-standard LM2576 architecture, the XH2576-5.0 offers a high-efficiency alternative to popular three-terminal linear regulators, substantially reducing heat-sink size and, in many designs, eliminating the heat sink entirely.

With a 52kHz fixed-frequency internal oscillator, internal frequency compensation, and a requirement for only about four external components, the XH2576-5.0 keeps board area and bill-of-materials cost low. The device integrates a low-power standby (shutdown) mode, cycle-by-cycle current limiting, and thermal shutdown for robust protection under fault conditions.

Key Features

• Fixed 5.0V regulated output
• Specified output current up to 3A
• 52kHz fixed-frequency internal oscillator (oscillator tolerance ±10%)
• Output voltage tolerance of ±4% under specified line and load conditions
• Wide input voltage range (typically up to 40V)
• Monolithic step-down (buck) switching topology
• Requires only about four external components
• Low-power standby (shutdown) mode, approximately 50µA typical standby current
• Cycle-by-cycle current limiting and thermal (over-temperature) shutdown protection
• TO-263-5 surface-mount package

Applications

• Simple, high-efficiency 5V step-down (buck) regulators
• On-board point-of-load conversion from higher rail voltages
• Replacement for inefficient 5V linear regulators
• Industrial control and automation power supplies
• Consumer electronics and white goods
• Pre-regulators for downstream LDOs and logic rails

Why Source XH2576-5.0 from Pacific Component Xchange

The XH2576-5.0 is a Xinluda part with little or no authorized-distributor stock in many regions, making it difficult to source through conventional channels. Pacific Component Xchange specializes in hard-to-find and obsolete power-management ICs and optocouplers, helping engineers and buyers secure parts when mainstream distributors come up empty. We support authenticity verification, global shipping, and responsive sourcing for production and prototype quantities alike.

Because the XH2576-5.0 is offered on a Request-For-Quote basis, pricing and lead time are confirmed per order. Submit an RFQ to Pacific Component Xchange today for current availability, quantity pricing, and delivery options on this and other hard-to-find Xinluda power components.