High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers

  • Wide Input Voltage Range 5.5V to 25V
SKU: SLY-IC168 Category:

Product Description


  • The ISL6236 dual step-down, switch-mode power-supply (SMPS) controller generates logic-supply voltages in battery-powered systems. The ISL6236 include two pulse-width modulation (PWM) controllers, 5V/3.3V and 1.5V/1.05V. The output of SMPS1 can also be adjusted from 0.7V to 5.5V.
  • The SMPS2 output can be adjusted from 0V to 2.5V by setting REFIN2 voltage.An optional external charge pump can be monitored through SE CFB.
  • This device features a linear regulator providing 3.3V/5V, or adjustable from 0.7V to 4.5V output via LDOREFIN.
  • The linear regulator provides up to 100mA output current with automatic linear-regulator bootstrapping to the BYP input. When in switchover, the LDO output can source up to 200mA.
  • The ISL6236 includes on-board power-up sequencing, the power-good (POK) outputs, digital soft start, and internal soft-stop output discharge that prevents negative voltages on shutdown.


  • Wide Input Voltage Range 5.5V to 25V
    • Dual Fixed 1.05V/3.3V and 1.5V/5.0V Outputs or Adjustable 0.7V to 5.5V (SMPS1) and 0V to 2.5V (SMPS2), ±1.5% Accuracy
    • Secondary Feedback Input (Maintains Charge Pump Voltage)
    • 1.7ms Digital Soft-Start and Independent Shutdown
    • Fixed 3.3V/5.0V, or Adjustable Output 0.7V to 4.5V, ±1.5% (LDO): 200mA
    • 3.3V Reference Voltage ±2.0%: 5mA
    • 2.0V Reference Voltage ±1.0%: 50μA
    • Constant ON-time Control with 100ns Load-Step Response
    • Frequency Selectable
    •rDS(ON) Current Sensing
    • Programmable Current Limit with Foldback Capability
    • Selectable PWM, Skip or Ultrasonic Mode
    • BOOT Voltage Monitor with Automatic Refresh
    • Independent POK1 and POK2 Comparators
    • Soft-Start with Pre-Biased Output and Soft-Stop
    • Independent ENABLE
    • High Efficiency – up to 97%
    • Very High Light Load Efficiency (Skip Mode)
    • 5mW Quiescent Power Dissipation
    • Thermal Shutdown
    • Extremely Low Component Count
    • Pb-Free (RoHS Compliant)
• Notebook and Sub-Notebook Computers
• PDAs and Mobile Communication Devices
• 3-Cell and 4-Cell Li+ Battery-Powered Devices
• DDR1, DDR2 and DDR3 Power Supplies
• Graphic Cards
• Game Consoles
• Telecommunications


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