5236QSCX
Description
The FAN5236 PWM controller provides high efficiency and regulation for two output voltages adjustable in the range from 0.9V to 5.5V that are required to power I/O, chip-sets, and memory banks in high-performance notebook computers, PDAs and Internet appliances. Synchronous rectification and hysteretic operation at light loads contribute to a high efficiency over a wide range of loads.
Key Features
- Highly flexible dual synchronous switching PWM controller includes modes for: - DDR mode with in-phase operation for reduced channel interference - 90˚ phase shifted two-stage DDR Mode for reduced input ripple - Dual Independent regulators 180° phase shifted
- Complete DDR Memory power solution - VTT Tracks VDDQ/2 - VDDQ/2 Buffered Reference Output
- Lossless current sensing on low-side MOSFET or precision over-current using sense resistor
- VCC Under-voltage Lockout
- Converters can operate from +5V or 3.3V or Battery power input (5 to 24V)
- Excellent dynamic response with Voltage Feed-Forward and Average Current Mode control
- Power-Good Signal
- Also supports DDR-II and HSTL
- Light load Hysteretic mode maximizes efficiency
- QSOP28, TSSOP28
