Semtech SC411
Synchronous Buck Pseudo-Fixed Frequency Power Supply Controller
Not Recommended for New Designs - Last Day of purchase: 5/1/11
Features
- 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
Applications
- Notebook Computers
- CPU/IO Supplies
- Handheld Terminals and PDAs
- LCD Monitors
- Network Power Supplies
Order Codes
- SC411MLTRT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel
Order Evaluation Boards
Semtech provides evaluation boards to help design engineers quickly and easily evaluate the performance of our devices for their application requirements.
To order, use our Evaluation Board Request Form below. One (1) free evaluation board may be requested per order form.
Eval boards are readily available for most of our new and popular products. If you wish to request boards for other parts, simply type the part number in the “Select Part Number” field space of the order form. These will be subject to availability.
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