Intersil has introduced a 6 A synchronous buck regulator with efficiency up to 97% and switching frequency up to 4 MHz.
The ISL8016 integrates two low on-resistance MOSFETs and lets users adjust operating frequency from 500 kHz to 4 MHz. For applications requiring minimum external components, the device offers a default 1 MHz operation, a fixed internal 1 ms soft start and internal compensation. It accepts a single 2,7 V to 5,5 V input and can operate at 100% duty cycle, allowing the user to program a wide range of output voltages from 0,6 V to Vin. Fixed output versions between 1,2 V and 3,3 V are also available.
The device supports current sharing with phase interleaving, allowing designers to provide multiples of 6 A output current with reduced Vout ripple. For applications requiring less than 6 A, the ISL8016 offers reduced current limit settings to utilise smaller inductors. To complete the feature set, the device has 1% reference accuracy over temperature, line and load variations, and ±10% voltage margining activated by a simple logic input.
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