SC411: Synchronous Buck Pseudo-Fixed Frequency Power Supply Controller
The SC411 is a constant on-time synchronous buck PWM controller in a space-saving MLPQ package intended for use in notebook computers and other battery operated portable devices.
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- Constant on-time for fast dynamic response
- Programmable VOUT range = 0.5 – VCCA
- VBAT range = 1.8V – 25V
- DC current sense using low-side RDS(ON) Sensing or sense resistor
- Resistor programmable frequency
- Cycle-by-cycle current limit
- Digital soft-start
- Powersave option
- Over-voltage/under-voltage fault protection
- 10μA typical shutdown current
- Low quiescent power dissipation
- Power good indicator
- 1.2% reference
- Integrated gate drivers with soft switching
- Enable pin
- 16 pin MLPQ (4mm x 4mm)
- Output soft discharge upon shutdown
- Notebook Computers
- CPU/IO Supplies
- Handheld Terminals and PDAs
- LCD Monitors
- Network Power Supplies
- SC411MLTRT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel
