Features
• Provides regulated output voltage in the range of 0.9V-5.5V - High efficiency over wide load range - Synchronous buck converter with hysteretic operation at light load - Inhibit Hysteretic mode on one, or both channels
• Complete DDR memory power solution - VTT tracks VDDQ/2 - VDDQ/2 buffered reference output
• No current-sense resistor required - Uses MOSFET rDS(ON) - Optional current-sense resistor for precision overcurrent
• Under-voltage lock-out on VCC pin
• Dual input voltage mode operation - Operates directly from battery 5V to 24V input - Operates from 3.3V or 5V system rail - VCC from 5V only
• Excellent dynamic response - Combined voltage feed-forward and average current mode control
• Power-good signal for each channel
• 300kHz switching frequency - 180° channel to channel phase operation for reduced input ripple when not in DDR mode - 0° channel to channel phase operation in DDR mode for reduced channel interference - 90° channel to channel phase operation for reduced input ripple in DDR mode when VIN is at GND.
• Pb-Free Available (RoHS Compliant)
Applications
• Mobile PCs
• PDAs
• Hand-held portable instruments
(Picture:Pinout / Diagram)
