Hi,
We are designing a compact, battery-powered system that requires a regulated high-voltage DC output with the following specifications:
• Input: 5V
• Output: Adjustable 400V to 1000V
• Load current: 1µA to 200µA
• Very low ripple and noise
• High efficiency and small form factor
The supply will be used as a bias source for sensitive detectors (e.g., APD/PMT-type devices), so output stability and low noise are critical. The output must remain stable across the specified load range.
I am currently considering a closed-loop flyback topology with post-filtering, but I am open to alternative architectures.
Could you please recommend:
• Suitable controller ICs from your portfolio?
• Relevant reference designs or evaluation boards?
• Design techniques for minimizing ripple and noise at these voltage levels?
Any guidance or application notes would be greatly appreciated.
Thank you.