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ML4890 - High Efficiency / Low Ripple Boost Regulator

Description

The ML4890 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.

Features

  • s s 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 (.

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Datasheet Details

Part number ML4890
Manufacturer Micro Linear
File Size 256.06 KB
Description High Efficiency / Low Ripple Boost Regulator
Datasheet download datasheet ML4890 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Extend G nge RIN Ra TU erature A p m e E T l F ia c r e m ed Com °C to 70°C ent –20 Equipm ndheld a H le tab for Por April 1997 ML4890 High Efficiency, Low Ripple Boost Regulator GENERAL DESCRIPTION The ML4890 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.
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