UDP3305S 4Ch Performance-Series Programmable Linear DC Power Supply

Description

The UNI-T UDP3305S is a four-channel, high-performance linear programmable DC power supply designed for versatile bench and automated testing environments. Its front-panel features a 4.3″ TFT display that simultaneously shows real-time voltage, current, and power for up to three selected outputs, while a dedicated USB-powered 5 V/2 A channel provides auxiliary power for external devices. Channels 1 and 2 each deliver up to 32 V/5 A, channel 3 up to 6 V/3 A, and channel 4 is fixed at 5 V/2 A, with individual on/off switching and independent regulation modes (CV/CC) for each output. The UDP3305S offers ultra-low ripple (<350 µV rms, 2 mVpp), fast transient response (≤50 µs for 50 % load steps), and high-precision programming/readback accuracy (voltage ± 0.03 % + 10 mV, current ± 0.2 % + 5 mA) under 25 ± 5 °C. Built-in functions include list-mode sequencing (up to 2048 steps), delay-mode switching, waveform display, and extensive protection (OVP/OC OCP/OTP) with audible and visual alarms. Connectivity options USB Host/Device, LAN, RS-232, and digital I/O enable SCPI remote control and integration into automated test systems, while an internal fan with fault-detection ensures safe operation across 0 °C to 40 °C. In total, it delivers 348 W of clean, programmable power with the precision and flexibility demanded by R&D, production, and educational labs.