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2022-09-24 23:21:22
FAN5231 - Precision Dual PWM Controller and Notebook CPU Linear Regulator
Features • Provides 3 voltage regulation
- Microprocessor core (SpeedStep™ enabled)
- Microprocessor I/O
- Microprocessor clock generator • High efficiency over wide load range • No dissipated current detection scheme
- RDS (day) of the MOSFET used
- Optional current sense resistor for accurate overcurrent • Adaptive N-channel MOSFET driver dead time • Operating voltage from +5 V, +3.3 V and battery (5.6-24V) inputs • Precision core voltage control:
- Remote "Kelvin" sensing
-Summary current mode control
- Compensated "droop" in chip mode for optimal transient response and low power processor dissipation TTL compatible 5-bit digital output voltage selection
- Wide range -0.925VDC in 25mV steps to 1.3VDC, from 1.3VDC to 2.0VDC steps in 50mV
- Programmable "No-Fly" VID code variation User programmable slew rate and 100ms settling time Power good output voltage monitor Fault Indicator • 300kHz Fixed Switching Frequency • Thermal Shutdown
Applications • Mobile Dual Mode Converter CPU
• Internet tablets • Internet devices