High-Voltage/ Non-Isolated Buck-Boost Converter for ISDN Digital Phones
Description
Si9121
New Product
Vishay Siliconix
High-Voltage, Non-Isolated Buck-Boost Converter for ISDN Digital Phones
FEATURES
D Fixed +5-V or +3.3-V Output D Integrated Floating Feedback Amplifier D On-Chip 70-V, 1.5-W N-Channel MOSFET Switch D Integrated High Voltage Start-Up Circuit, with VCC Regulator D D D D D –10-V to –60-V Input Voltage Range 95-kHz PWM Opera...
