SC412A: Synchronous Buck Controller
The SC412A is a versatile, constant on-time synchronous buck, pseudo fixed-frequency, PWM controller intended for notebook computers and other battery operated portable devices. The SC412A contains all the features needed to provide cost-effective control of switch-mode power outputs.
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- VBAT Range 3V to 25V
- Soft-Shutoff at Output
- Current Sense Using Low-Side RDS(ON) or Resistor
- Sensing with Adjustable Cycle-by-Cycle Current Limit
- Fixed-Frequency, 325kHz
- Constant On-Time for Fast Dynamic Response and Reduced Output Capacitance
- Automatic Smart Power Save†
- Internal Soft-Start
- Over-Voltage/Under-Voltage Fault Protection
- Power Good Output
- 1μA Typical Shutdown Current
- Tiny 3x3mm, 16 Pin MLP, Lead-free Package
- Low External Part Count
- Industrial Temperature Range
- 1% Internal Reference
- 1A/3A Non-Overlapping Gate Drive with SmartDrive™
- High Effi ciency > 90%
- Fully WEEE and RoHS Compliant
† Patent pending
- Notebook and Sub-notebook Voltage Controllers
- Tablet PCs
- Embedded Applications
- SC412AMLTRT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel
