Semtech SC475A
Synchronous Buck Controller with Dual-Level VOUT Transition Support
Not Recommended for New Designs - Last Day of purchase: 5/1/11
Features
- VOUT Programmable 0.75V to 5.25V with Integrated Transition Support
- VBAT Range 3V to 25V
- Soft Shutoff at Output
- Current Sense Using Low-side R DS(ON) or Resistor Sensing
- Adjustable Cycle-by-Cycle Valley Current Limit
- 325kHz Fixed-Frequency
- Constant On-Time for Fast Dynamic Response and Reduced Output Capacitance
- Automatic Smart Power-Save (Patent Pending)
- Internal Soft-Start
- Over-Voltage/Under-Voltage Fault Protection
- Power Good Output with Transition Blanking
- 1μA Typical Shutdown Current
- 500μA Typical Operating Current
- Tiny 3×3mm, 16 Pin MLP Package
- Low External Part Count
- Industrial Temperature Range
- 0.85% Internal Reference
- 1A/3A Non-Overlapping Gate Drive with SmartDriver™Technology
- High Efficiency > 90%
- Device is Fully WEEE and RoHS Compliant
Applications
- Notebook/Sub-Notebook Graphics Voltage Controllers
- Tablet PCs
- Embedded Applications
Order Codes
- SC475AMLTRT: 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.
|
