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The RT8202L/M PWM controller provides the high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high voltage batteries to generate low voltage CPU core, I/O, and chipset RAM supplies in notebook computers.
The constant-on-time PWM control scheme handles wide input/output voltage ratios with ease and provides 100ns "instant-on" response to load transients while maintaining a relatively constant switching frequency.
The RT8202L/M achieves high efficiency at a reduced cost by eliminating the current-sense resistor found in traditional current mode PWMs. Efficiency is further enhanced by its ability to drive very large synchronous rectifier MOSFETs. The RT8202L is available in a WQFN-16L 4x4 package and the RT8202M is available in a WQFN-16L 3x3 package.
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  • Ultra-High Efficiency
  • Resistor Programmable Current Limit by Low Side RDS(ON) Sense (Lossless Limit)
  • 4700ppm/°C RDS(ON) Current Sensing
  • Quick Load Step Response within 100ns
  • 1% VFB Accuracy over Line and Load
  • Adjustable 0.75V to 3.3V Output Voltage Range
  • 3V to 26V Battery Input Voltage Range
  • Resistor Programmable Frequency
  • Integrated Bootstrap Switch
  • Over Voltage Protection
  • Under Voltage Protection
  • Voltage Ramp Soft-Start
  • Built In Soft Discharge Output
  • Power Good Indicator
  • RoHS Compliant and 100% Halogen Free
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Notebook Computers<br />CPU Core Supply<br />Chipset/RAM Supply as Low as 0.75V
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Keyword 1

Keyword 2

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