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QPO-1-EVAL5 Datasheet(PDF) 1 Page - Vicor Corporation |
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QPO-1-EVAL5 Datasheet(HTML) 1 Page - Vicor Corporation |
1 / 4 page Picor Corporation • www.picorpower.com QPO-1-EVAL5 Data Sheet Rev. 1.1 Page 1 of 4 P P R R E E L L II M M II N N A A R R Y Y QPO-1-EVAL5 QPO-1 Evaluation Board, Mini Foot Print DC-DC Converters Description The QPO-1-EVAL5 is designed to allow full testing of the QPO-1 and its various performance settings to optimize final system design. The board offers switch settings for the user to select preset values for the Rhr, Rsc, and Rsa resistors. Solder pads are available to mount user-selected values of these components if required. Please refer to the QPO-1 product data sheet and the following pages for the proper application of this board. The EVAL5 accommodates Vicor’s Mini DC-DC converters with an input up to 72 Vdc. The QPO-1 output ripple attenuator SiP uses active filtering to reduce output ripple and noise (PARD) over 20 dB from 50 Hz to 500 kHz. The QPO-1 operates over a voltage range from 3 to 30Vdc and supports load currents as high as 10A. Output regulation is maintained with remote sense or trim adjustment of the power supply. The closed loop architecture improves transient response and ensures precise point-of-load regulation. Other eval boards (see www.picorpower.com) allow easy evaluation with other DC-DC converters or power supplies with standard terminations. Note 1: For off-line supplies 20dB attenuation can be achieved down to 50Hz with additional capacitance added from the VREF pin to the REFGND pin. Features of the QPO-1 • >30 dB PARD attenuation, 1 kHz to 500 kHz • >20 dB PARD attenuation, 50 Hz to 500 Hz 1 • 10A rating over a 3-30 Vdc operating range • Supports precise point-of load regulation • Up to 99% efficiency with power limit protection • User selectable optimization of attenuation, power dissipation & transient load response • Peak detector function optimizes for ripple amplitude variation automatically • 1.0 x 1.0 x 0.2” SiP with BGA or LGA mounting • Improves transient response of most DC-DC converters and power supplies • Reduces required number of output capacitors to support dynamic loads. • Patents Pending Typical Application QPO-1 Performance Rhr SC SET CESR QPO OUT VREF SC QPO IN QPO-1 Cout Rsc VOUT+ VOUT- SENSE+ SENSE- SC LOAD+ LOAD- Figure 1 – SC/Trim supports applications without the use of remote sense. Figure 2 – Typical performance with a 3.3 Volt converter. QPO IN (AC) QPO OUT (AC) LOAD CURRENT (DC) 1A/DIV QuietPower™ |
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