Power Supply and Accurate Current Monitor for Avalanche Photodiode (APD) Biasing Applications
Key specifications for this reference design are listed below, along with a detailed schematic (Figure 1) and bill of materials (Table 1) for the application.
Design Specifications and Setup
- Wide, 2.7V to 11V input supply-voltage range
- 70V output voltage
- 4mA output current
- Fixed, 400kHz switching frequency
- -40°C to +125°C operating temperature range
- Tiny, 8mm x 12mm circuit footprint
Schematic of the Reference Design
Figure 1. Schematic of the MAX15031 boost converter for FSW = 400kHz (fixed).
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