ML4790ES Даташит - Micro Linear Corporation
производитель
Micro Linear Corporation
GENERAL DESCRIPTION
The ML4790 is a high efficiency, PFM (Pulse Frequency Modulation), boost switching regulator connected in series with an integrated LDO (Low Dropout Regulator) that incorporates “Silent Switcher™” technology. This technique incorporates a patented tracking scheme to minimize the voltage drop across the LDO and increase the total efficiency of the regulator beyond that which can be obtained by using a discrete external LDO regulator.
FEATURES
■ Incorporates “Silent Switcher™” technology to deliver very low output voltage ripple (typically 5mV)
■ Guaranteed full load start-up and operation at 1.0V input and low operating quiescent current (<100µA) for extended battery life
■ Pulse Frequency Modulation and internal synchronous rectification for high efficiency
■ Minimum external components
■ Low ON resistance internal switching MOSFETs
■ Adjustable output voltage (2.5V to 5.5V)
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