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1.5A Rail-to-Rail Output Synchronous Step-Down Regulator

May 02, 2012 // Jeff Zhang, Linear Technology // 0 comments

1.5A Rail-to-Rail Output Synchronous Step-Down Regulator Download White Paper 77Ko

The LTC3600 is a high efficiency, monolithic synchronous buck regulator whose output is programmed with just one external resistor. The accurate internally generated 50μA current source on the ISET pin allows the use of a single external resistor to program an output voltage that ranges from 0V to 0.5V below VIN. The VOUT voltage feeds directly back to the error amplifier in unity gain fashion and equals the ISET voltage. The operating supply voltage range is 4V to 15V, making it suitable for dual lithium-ion battery and 5V or 12V input point-of-load power supply applications.


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The new suite of Apollo MCUs is based on the 32-bit ARM Cortex-M4 floating point microcontroller and redefines 'low power' with energy consumption that is typically five to ten times lower than that of MCUs of comparable performance (thanks to Ambiq’s patented Subthreshold Power Optimized Technology platform).


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