DC:DC conversion for digital cameras block diagram

Key features and benefits
• Typical specification: VR > 30 V, IF > 500 mA
• Ultra-low forward voltage VF
• Small SMD packages

Description
System notes
• DSC energy source: 3 or 6 V batteries
o Average standalone energy consumption: 2 W per flash / 500 mW per LCD view
• Power management system includes multiple DC/DC converters, supply line switches, and control and status logic
o Different voltages required for image processor, microcontroller, memory (1.8 to 3.3 V), and for CCD image sensor and LCD display (+5, +6.5, +13.5, ±15, or ±7.5 V)
• Uses power-sequencing circuit

_{Download Full Block Diagram Below}