AAT3143 Datasheet, PDF (10/11 Pages) Advanced Analogic Technologies – High Efficiency 1X/1.5X/2X Charge Pump with PWM Control for White LED Applications

AAT3143
High Efficiency 1X/1.5X/2X Charge Pump with
PWM Control for White LED Applications
Capacitor area is another contributor to ESR.
Capacitors that are physically large will have a lower
ESR when compared to an equivalent material
smaller capacitor. These larger devices can improve
circuit transient response when compared to an
equal value capacitor in a smaller package size.
Thermal Protection
The AAT3143 has a built-in thermal protection cir-
cuit that will shut down the charge pump if the die
temperature rises above the thermal limit, as is the
case during a short-circuit of the CP pin.
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3143.2006.05.1.0