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Figure 1

   

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).