The Sorensen XFR300-9 is a single-output, 300 W DC power supply designed for benchtop and Automated Test Equipment (ATE) applications requiring stable, low-noise power delivery. It operates in both constant voltage (CV) and constant current (CC) modes with exceptional load and line regulation, remote sensing compensation, and integrated protection circuits.
Technical Specifications
Output Ratings
• Voltage: 0–30 V
• Current: 0–9 A
• Power: 300 W
Regulation Performance (CV Mode)
• Load Regulation: ≤ 0.1% + 5 mV
• Line Regulation: ≤ 0.01% + 2 mV
• Ripple and Noise: ≤ 10 mVrms (20 Hz to 20 MHz)
Regulation Performance (CC Mode)
• Load Regulation: ≤ 0.2% + 5 mA
• Line Regulation: ≤ 0.05% + 2 mA
• Ripple and Noise: ≤ 20 mArms (20 Hz to 20 MHz)
Dynamic Response
• Setup Time: ≤ 100 ms at rated load
• Transient Response: ≤ 100 µs for 50% load change
• Remote Sensing Compensation: Up to 1 V per lead
Input Specifications
• Voltage: 115 VAC ±10% or 230 VAC ±10% (selectable)
• Frequency: 50/60 Hz
• Maximum Current: 7.5 A @ 115 VAC; 3.8 A @ 230 VAC
• Power Factor: ≥ 0.95 at full load
– Key Features
• Adjustable overvoltage (OVP) and overcurrent (OCP) protection
• Internal over-temperature shutdown
• Analog programming via 0–5 VDC control inputs for voltage and current
• Front-panel remote sensing terminals for lead compensation
• Compact benchtop footprint: 3.5 in H × 8.5 in W × 13.4 in D (89 mm × 216 mm × 340 mm)
• Weight: 18 lbs (8.2 kg)
• Optional rack mount kit available
– Operating Environment
• Temperature Range: 0°C to +50°C operating; −20°C to +75°C storage
• Humidity: 20% to 80% RH (non-condensing)
– Typical Applications
Component testing, device characterization, power conversion validation, and ATE integration where precision voltage and current sourcing with minimal ripple and fast transient settling are required.















