高性能双输出降压型控制器，用于笔记本电脑的应用 High-Performance Dual-Output Buck Controller for Notebook Applications
The ISL6228 IC is a dual channel synchronous-buck PWM controller featuring "s Robust Ripple Regulator R3 technology that delivers truly superior dynamic response to input voltage and output load transients. Integrated MOSFET drivers and bootstrap diodes result in fewer components and smaller implementation area.
Features
• High performance R3 technology
• Fast transient response
• ±1% regulation accuracy: -40°C to +100°C
• Individual power stage input rail for each channel
• Wide input voltage range: +3.3V to +25V
• Output voltage range: +0.6V to +5V
• Diode emulation mode for increased light load efficiency
• Programmable PWM frequency: 200kHz to 600kHz
• Pre-biased output start-up capability
• Integrated MOSFET drivers and bootstrap diode
• Internal digital soft-start
• Power good monitor
• Fault protection
\- Undervoltage protection
\- Soft crowbar overvoltage protection
\- Inductor DCR overcurrent protection
\- Over-temperature protection
\- Fault identification by PGOOD pull-down resistance
• Pb-free RoHS compliant
