XH2576-ADJ – DC-DC Converter – Xinluda

The XH2576-ADJ from Xinluda is an adjustable-output, 3A monolithic step-down (buck) switching regulator operating at a 52 kHz fixed frequency in a TO-263-5 package. Available for RFQ through Pacific Component Xchange.

The XH2576-ADJ is a monolithic step-down (buck) switching voltage regulator from Xinluda Information Technology Co., Ltd. It integrates all of the active functions required for a high-efficiency step-down converter capable of driving a 3A load with excellent line and load regulation. The “-ADJ” suffix denotes the adjustable-output version, allowing the output voltage to be programmed across a wide range using just two external resistors. Functionally and pin-compatible with the popular LM2576/XL2576 family, the XH2576-ADJ requires only four external components, making it a compact, cost-effective alternative to bulky three-terminal linear regulators.

Key Features

• Adjustable output voltage version (ADJ): 1.23 V to 37 V
• Specified 3 A output current capability
• Wide input voltage range of 8 V to 40 V
• 52 kHz fixed-frequency internal oscillator
• Output voltage tolerance of ±4% over specified conditions
• Oscillator frequency tolerance of ±10%
• Internal 1.23 V feedback reference voltage
• Requires only 4 external components
• TTL-compatible shutdown with low-power standby mode
• Built-in cycle-by-cycle current limiting and thermal (over-temperature) shutdown
• High efficiency; uses readily available standard inductors
• Operating temperature range: -40 °C to +85 °C
• TO-263-5 (D2PAK) surface-mount package

Applications

• Simple, high-efficiency step-down (buck) regulators
• On-card switching regulators for distributed power systems
• Replacement for linear three-terminal regulators to reduce heat
• Industrial control and instrumentation power supplies
• Consumer electronics and LED lighting power stages
• Battery-powered and automotive accessory power conversion

Why Source XH2576-ADJ from Pacific Component Xchange

The XH2576-ADJ is a hard-to-find part with limited authorized-distributor stock, which can stall production schedules. Pacific Component Xchange is an independent distributor specializing in obsolete, end-of-life, and difficult-to-source power-management ICs. We help engineers and buyers secure the exact regulators they need when mainstream channels come up empty.

Every order is backed by our commitment to authenticity and quality assurance, with inspection and counterfeit-avoidance processes designed for sensitive power components. We offer global shipping and responsive support for both prototype quantities and production volumes.

Need the XH2576-ADJ? Submit a Request for Quote (RFQ) today and our sourcing team will respond quickly with availability, lead time, and pricing tailored to your requirements.