Power Integrations AC/DC Converter 1.23 A, 5 V AC, 50 V, 7-Pin SO-8C Package LNK3604D-TL

Power Integrations LNK3604D-TL is a highly efficient AC/DC converter IC capable of delivering up to 1.23 A output current with a 5 V AC output voltage, housed in a compact 7-pin SO-8C surface-mount package. It supports flyback, buck, and buck-boost topologies, enabling versatile industrial and electronic power management applications.

This device operates with a switching frequency of 132 kHz and precisely controls output current using selectable device current limits. Its high current limit maximizes continuous and peak output power, while the low current limit allows the use of cost-effective surface mount buck chokes and inductors, thus reducing overall system size and cost.

The IC functions over a wide input voltage range of 85 V AC to 265 V AC and sustains operation across a broad temperature span from -40°C to 150°C, making it suitable for demanding environmental conditions in industrial, commercial, and telecommunications equipment.

Key safety and reliability features include auto-restart capabilities on fault conditions such as short circuits and open loop faults, limiting power delivery to 3% of maximum during faults to protect both the device and the circuit. Frequency jittering functionality assists in reducing electromagnetic interference, thus simplifying the design of EMI filters.

With its small footprint measuring only 4.9 mm in length, 3.9 mm in width, and 1.65 mm in height, the LNK3604D-TL enables highly compact power supply designs. The device is ideal for efficient power conversion in industrial power supplies, consumer electronics, and communication equipment.

Supports buck, buck-boost and flyback topologies for flexible power management. Selectable device current limit enhances continuous and peak output capabilities. Operates at 66 kHz switching frequency with accurate current limit and frequency jittering to reduce EMI.

Compact SO-8C package suitable for space-constrained PCB designs. Wide input voltage range from 85 V AC to 265 V AC. Broad operating temperature range from -40°C to 150°C. Includes auto-restart functionality on faults for increased device and system protection.

Low quiescent current reduces standby power consumption.

This AC/DC Converter IC is an excellent choice for industrial electronics, telecommunications, and power supply applications requiring reliable, efficient, and compact power conversion solutions. Browse the Electronics & Electricals category for more semiconductor and power management ICs on EnvMart.