Full range of UTC power ICs and supporting control ICs in stock. Multiple packages available, ideal for industrial control and consumer electronics applications.

Recently, a large batch of mainstream UTC (Unisonic Technologies) ICs has arrived, including voltage regulators, PWM controllers, operational amplifiers and voltage reference chips. Available in mainstream through-hole and surface-mount packages such as TO-220, SOP, SOT-23 and SOT-89, our product lineup covers core functions including voltage regulation, signal processing, switching power supply control and voltage reference. These devices are fully applicable to industrial control, smart home appliances, consumer electronics, automotive equipment and various small-to-medium power supply solutions, delivering cost-effective and highly reliable component selection solutions for electronic R&D and manufacturing enterprises.

We have a comprehensive range of newly arrived UTC chips, including classic voltage regulators, high-performance PWM controllers, general-purpose operational amplifiers and voltage reference devices. All products come in original tape-and-reel (T/R) packaging with consistent quality, perfectly suited for high-volume SMT production. They fully meet diverse demands including sampling, mass production and inventory replacement, addressing common industry pain points such as component shortages, long lead times and poor compatibility of power ICs.

In the classic voltage regulation segment, the LM7805AL (TO-220), a widely used 5V three-terminal regulator, delivers stable 5V output. It features multi-protection against overcurrent, overheating and short circuits, with a wide input voltage range and strong load capacity. Serving as a core regulator for industrial equipment, small home appliances and general power modules, it offers excellent compatibility with most conventional circuit designs. Its compact counterpart 78L05MG (SOT-89) retains the reliable performance of the 7805 series while featuring a greatly reduced footprint, making it ideal for miniaturized and lightweight portable electronic products with optimized space utilization.

Our portfolio of switching power supply controllers is fully completed with a full selection of mainstream high-frequency PWM ICs, compatible with flyback, boost, buck and other common power topologies. Among them, UC2844G and UC2845G (SOP-8) are classic current-mode PWM controllers featuring high switching frequency and low power consumption, along with precise current limiting and dead-time control functions. They are widely adopted in adapters, switching power supplies and charging piles. The UC3846G (SOP-16) integrates more comprehensive functions and supports multi-channel precision control, designed for high-power and high-precision industrial power systems to improve energy efficiency and operational stability. Paired with the miniature power management IC UR7550G-C (SOT-23-5), it provides auxiliary voltage regulation and circuit protection for various auxiliary power circuits.

A full set of supporting ICs for signal processing and voltage reference is also in stock to form complete power system solutions. The 4053G (SOP-16), a multi-channel analog switch, boasts low on-resistance and strong anti-interference capability for signal switching and multi-channel signal management, suitable for industrial signal acquisition and smart device circuits. The LM358G-2 (SOP-8) is a general-purpose dual operational amplifier with low power consumption and stable precision, extensively used in signal amplification, voltage comparison and sampling detection circuits. The compact single operational amplifier LM321G (SOT-23-5) fits high-density PCB layouts to meet signal processing requirements of miniaturized devices. As a precision voltage reference IC, TL431G-A (SOT-23-3) provides highly stable reference voltage, acting as a key component for voltage regulation and feedback circuits to guarantee accurate power output.

All newly stocked UTC chips are genuine original products with mature manufacturing processes and superior consistency. Compatible with both industrial and consumer-grade applications, they serve as ideal drop-in replacements for equivalent imported ICs, balancing outstanding cost performance and stable supply. Standardized packages support automated SMT production, and tape-and-reel packaging enables direct assembly on production lines, significantly boosting manufacturing efficiency.