Power Regulation, Conversion and Management – ISL8115: Wide Input Step Down PWM Controller Offers Fast Transient and Current Sharing Capability

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ISL8115: Wide Input Step Down PWM Controller Offers Fast Transient and Current Sharing Capability
The ISL8115 offers wide VIN range of 2.97V to 36V which allows it to support up to 5.5V output voltage using direct current resistance (DCR) sensing, maximizing efficiency in high current applications. The device’s current sharing capability allows multiple modules to be connected in parallel via iShare bus to achieve higher output current and to reduce input and output ripple current, resulting in fewer components and reduced output dissipation. Current sharing coupled with phase delay enables the ISL8115 controller to achieve high current with up to six ISL8115-based POL modules in parallel operation.
FEATURES
• Voltage mode PWM leading edge modulation with non-linear control
• Internal bootstrap diode
• Differential voltage sensing
• Oscillator programmable from 150kHz to 1.5MHz
• Power good open drain output
• Output OVP, UVP; OTP
• Integrated 5V high speed 4A MOSFET gate drivers
• 0.6V ±1.0% internal reference (-40°C ~ +125°C)
• Peak and average overcurrent protection
• Diode emulation mode for light load efficiency improvement
• 24-lead TQFN packages
• 1k MSRP: $1.85 US

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