SC416: Dual Synchronous Buck Controller with Tracking Start-up/Shutdown
The SC416 is a versatile, constant on-time, pseudo-fixed-frequency, dual synchronous buck PWM controller intended for notebook computers and other battery operated portable devices. The SC416 contains all the features needed to provide cost-effective control of two independent switchmode power supplies.
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- VIN Range 3-25V
- Outputs Adjustable from 0.75 to 5.25V, or
- Preset Output Voltages:
- VOUT1 = 1.8 or 1.5V
- VOUT2 = 1.25 or 1.05V
- Proportional or Coincident Tracked Start-up and Shutdown of Both Outputs
- Adjustable Soft-start Rates for Each Output
- Regulated Shutdown for Each Output
- Low Shutdown Power
- Constant On-Time for Fast Dynamic Response
- Adjustable Switching Frequency
- Separated Frequencies for Minimal Switching Interaction:
- VOUT1 = up to 600kHz
- VOUT2 = up to 720kHz
- Power Save or Continuous Operation at Light Load
- Over-Voltage and Under-Voltage Fault Protection
- Cycle-by-Cycle Valley Current Limit
- DC Current Sense Using Low-Side RDSON Sensing, or
- RSENSE In Source of Low-Side MOSFET for Greater Accuracy
- Separate Power Good Outputs
- Separate Enable/Power Save Inputs
- 3.1A Non-Overlapping Gate Drive
- SmartDrive™ for High-side MOSFET
- MLP 4x4 24 Pin Lead-free Package
- Industrial Temperature Range
- WEEE and RoHS Compliant
- Notebook and Sub-Notebook Graphics
- Voltage Controllers
- Tablet PCs
- Embedded Applications
- SC416MLTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape and Reel Only
