High-Performance Notebook PWM Controller With Bias Regulator And Audio-Frequency Clamp

The ISL6269 IC is a Single-Phase Synchronous-Buck PWM Controller featuring Intersil's Robust Ripple Regulator (R3) technology that delivers truly superior dynamic response to input voltage and output load transients. Integrated MOSFET drivers, 5V LDO and bootstrap Diode result in fewer components and smaller implementation area.
Intersils R3 technology combines the best features of fixed-frequency PWM and hysteretic PWM while eliminating many of their shortcomings. R3 technology employs an innovative Modulator that synthesizes an AC ripple voltage signal VR, analogous to the output inductor ripple current. The AC signal VR enters a window Comparator where the lower threshold is the error Amplifier output VCOMP, and the upper threshold is a programmable Voltage Reference VW, resulting in generation of the PWM signal. The Voltage Reference VW sets the steadystate PWM frequency. Both edges of the PWM CAN be modulated in response to input voltage transients and output load transients, much faster than conventional fixedfrequency PWM Controllers Unlike a conventional hysteretic converter, the ISL6269 has an error Amplifier that provides 1% voltage regulation at the FB pin.
The ISL6269 has a 1.5ms digital soft-start and CAN be started into a pre-biased output voltage. A resistor divider is used to program the output voltage setpoint. The ISL6269 CAN be configured to operate in continuous-conductionmode (CCM) or diode-emulation-mode (DEM), which improves light-load efficiency. In CCM the controller always operates as a synchronous Rectifier however, when DEM is enabled the low-side MOSFET is permitted to stay off, blocking negative current flow into the low-side MOSFET from the output inductor.
By Intersil Corporation
Part Manufacturer Description Datasheet Samples
ISL6269BIRZ Intersil Corporation High-Performance Notebook PWM Controller with Audio-Frequency Clamp; QFN16; Temp Range: See Datasheet
ISL6269AIRZ Intersil Corporation 25A SWITCHING CONTROLLER, 600kHz SWITCHING FREQ-MAX, PQCC16, 4 X 4 MM,ROHS COMPLIANT, MO-220, PLASTIC, QFN-16
ISL6269ACRZ-T Intersil Corporation High-Performance Notebook PWM Controller; QFN16; Temp Range: 0° to 70°
ISL6269IRZ-T Intersil Corporation SWITCHING CONTROLLER, 600kHz SWITCHING FREQ-MAX, PQCC16, 4 X 4 MM, ROHS COMPLIANT, PLASTIC, MO-220-VGGC, QFN-16
ISL6269ACRZ Intersil Corporation High-Performance Notebook PWM Controller; QFN16; Temp Range: 0° to 70°
ISL6269IRZ Intersil Corporation High-Performance Notebook PWM Controller with Bias Regulator and Audio-Frequency Clamp; QFN16; Temp Range: See Datasheet
ISL6269BCRZ-T Intersil Corporation High-Performance Notebook PWM Controller with Audio-Frequency Clamp; QFN16; Temp Range: See Datasheet
ISL6269BIRZ-T Intersil Corporation High-Performance Notebook PWM Controller with Audio-Frequency Clamp; QFN16; Temp Range: See Datasheet
ISL6269AIRZ-T Intersil Corporation 25A SWITCHING CONTROLLER, 600kHz SWITCHING FREQ-MAX, PQCC16, 4 X 4 MM,ROHS COMPLIANT, MO-220, PLASTIC, QFN-16
ISL6269BCRZ Intersil Corporation High-Performance Notebook PWM Controller with Audio-Frequency Clamp; QFN16; Temp Range: See Datasheet
ISL6269 's PackagesISL6269 's pdf datasheet
ISL6269CRZ QFN
ISL6269CRZ-T QFN
ISL6269IRZ QFN
ISL6269IRZ-T QFN




ISL6269 Pinout, Pinouts
ISL6269 pinout,Pin out
This is one package pinout of ISL6269,If you need more pinouts please download ISL6269's pdf datasheet.

ISL6269 Application circuits
ISL6269 circuits
This is one application circuit of ISL6269,If you need more circuits,please download ISL6269's pdf datasheet.


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ISL6269 Application Notes ISL6269 RoHS ISL6269 Circuits ISL6269 footprint