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ISL6235 Datasheet Advanced Triple Pwm Only Mode And Dual Linear Power Controller

Manufacturer: Intersil (now Renesas)

Overview: NS ES I G D W NT R NE D F O LA C EM E E D MEN ED REP b. 2004) COM D E R Data Sheet EN le Fe NOT ECOMM (Availab R 232 I S L6 TM ISL6235 June 2001 FN9029 Advanced Triple PWM Only Mode and Dual Linear Power Controller for Portable Applications The ISL6235 provides a highly integrated power control and protection solution for five output voltages required in highperformance notebook PC applications. The IC integrates three fixed frequency pulse-width-modulation (PWM) controllers and two linear regulators along with monitoring and protection circuitry into a single 24 lead SSOP package. The two PWM controllers that regulate the system main 5V and 3.3V voltages are implemented with synchronousrectified buck converters. Synchronous rectification insures high efficiency over a wide range of input voltage and load variation. Efficiency is further enhanced by using the lower MOSFET’s rDS(ON) as the current sense element. Input voltage feed-forward ramp modulation, current-mode control, and internal feed-back compensation provide fast and stable handling of input voltage load transients encountered in advanced portable computer chip sets. The third PWM controller is a boost converter that regulates a resistor selectable output voltage of nominally 12V. Two internal linear regulators provide +5V ALWAYS and +3.3V ALWAYS low current outputs required by the notebook system controller.

Key Features

  • PWM Only Mode for Reduced Noise at Light Loads.
  • Provides Five Regulated Voltages - +5V ALWAYS - +3.3V ALWAYS - +5V Main - +3.3V Main - +12V.
  • High Efficiency Over Wide Line and Load Range - Synchronous Buck Converters on Main Outputs.
  • No Current-Sense Resistor Required - Uses MOSFET’s rDS(ON) - Optional Current-Sense Resistor for More Precision.
  • Operates Directly From Battery 5.6 to 24V Input.
  • Input Undervoltage Lock-Out (UVLO).
  • Exce.

More Datasheets from Intersil (now Renesas)

Part Number Description
ISL6232 High Efficiency System Power Supply Controller
ISL6217 Precision Multi-Phase Buck PWM Controller
ISL6219 Microprocessor CORE Voltage Regulator
ISL6226 Advanced PWM and Linear Power Controller for Portable Applications
ISL6244 Multi-Phase PWM Controller
ISL6247 A Mobile Multi-Phase PWM Controller
ISL6257 Highly Integrated Narrow VDC Battery Charger
ISL6263 5-Bit VID Single-Phase Voltage Regulator
ISL6263B 5-Bit VID Single-Phase Voltage Regulator
ISL6265 Multi-Output Controller

ISL6235 Distributor