SC1480: DDR Memory Power Supply Controller
The SC1480 is a single output, constant on-time synchronous-buck, pseudo-fixed frequency, PWM controller 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 based on external reference
- VIN range = 1.8V – 25V
- DC current sense using low-side RDS(ON) sensing or sense resistor
- 3mA reference output buffer
- Low power S3 state
- Resistor programmable frequency
- Cycle-by-cycle current limit
- Digital soft start
- Output current source-sink capability
- Overvoltage/under-voltage fault protection and PGOOD output
- Under 10uA typical shutdown current
- Low quiescent power dissipation
- 14-Pin TSSOP package. Also available in Lead-free package which is fully WEEE and RoHS compliant
- Industrial temperature range
- Integrated gate drivers with soft switching
- Efficiency >90%
- SC1480ITSTR: Package Minimum Tape & Reel Only
- SC1480ITSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
