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MCP1603 2.0 MHz, 500 mA Synchr
消耗积分:2 |
格式:rar |
大小:322 |
2009-09-13
张龙祥
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The MCP1603 is a high efficient, fully integrated 500 mA synchronous buck regulator whose 2.7V to 5.5V input voltage range makes it ideally suited for applications powered from 1-cell Li-Ion or 2-cell/3-cell NiMH/NiCd batteries.
At heavy loads, the MCP1603 operates in the 2.0 MHz fixed frequency PWM mode which provides a low noise, low output ripple, small-size solution. When the load is reduced to light levels, the MCP1603 automatically changes operation to a PFM mode to minimize quiescent current draw from the battery. No intervention is necessary for a smooth transition from one mode to another. These two modes of operation
allow the MCP1603 to achieve the highest efficiency over the entire operating current range.
The MCP1603 is available with either an adjustable or fixed output voltage. The available fixed output voltage options are 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. When a fixed option is used, only three additional small external components are needed to form a complete solution.Couple this with the low profile, small-foot print packages and the entire system solution is achieved with minimal size.
Additional protection features include: UVLO,overtemperature, and overcurrent protection.
At heavy loads, the MCP1603 operates in the 2.0 MHz fixed frequency PWM mode which provides a low noise, low output ripple, small-size solution. When the load is reduced to light levels, the MCP1603 automatically changes operation to a PFM mode to minimize quiescent current draw from the battery. No intervention is necessary for a smooth transition from one mode to another. These two modes of operation
allow the MCP1603 to achieve the highest efficiency over the entire operating current range.
The MCP1603 is available with either an adjustable or fixed output voltage. The available fixed output voltage options are 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. When a fixed option is used, only three additional small external components are needed to form a complete solution.Couple this with the low profile, small-foot print packages and the entire system solution is achieved with minimal size.
Additional protection features include: UVLO,overtemperature, and overcurrent protection.
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