MIC2155/2156
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Two-Phase, Single-Output, PWM Synchronous Buck Control IC
General Description
The MIC2155 and MIC2156 are a family of two-phase, single-output synchronous buck control ICs featuring small size, high efficiency, and a high level of flexibility.
The ICs implement a 500kHz (MIC2155) and 300kHz (MIC2156)
voltage mode PWM control, with the outputs switching 180° out of phase.
The result of the out-of-phase operation is 1MHz (or 600kHz) input ripple with ripple current cancellation, minimizing the required input filter capacitance.
A 1% output
voltage tolerance allows the maximum level of system performance.
Internal drivers with adaptive gate drive allow the hi...