ISL6269BIRZ

高性能笔记本PWM控制器，带有音频频率钳位 High-Performance Notebook PWM Controller with Audio-Frequency Clamp

High-Performance Notebook PWM Controller with Audio-Frequency Clamp

The ISL6269B IC is a Single-Phase 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 diode result in fewer components and smaller implementation area.

Features

• High performance R3 technology

• Fast transient response

• ±1% regulation accuracy: -10°C to +100°C and -40° to +100°C

• Wide input voltage range: +5.0V to +25.0V

• Output voltage range: +0.6V to +3.3V

• Wide output load range: 0A to 25A

• Selectable 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

• PWM minimum frequency above audible spectrum

• Fault protection

\- Undervoltage protection

\- Soft crowbar overvoltage protection

\- Low-side MOSFET rDSONovercurrent protection

\- Over-temperature protection

\- Fault identification by PGOOD pull down resistance

• Pb-free plus anneal available RoHS compliant

Applications

• PCI express graphical processing unit

• Auxiliary power rail

• VRM

• Network adapter