MIC2156
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 500k Hz (MIC2155) and 300k Hz (MIC2156) voltage mode PWM control, with the outputs switching 180° out of phase. The result of the out-of-phase operation is 1MHz (or 600k Hz) 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 highest efficiency with the minimum external ponents. Two independent enable pins and a power good output are provided, allowing a high level of control and sequencing capability. The MIC215x family has a junction operating range from -40°C to +125°C. Data sheets and support documentation can be found on Micrel’s web site at .micrel..
Features
- Synchronous buck control ICs with outputs switching...
