Name: Low Iq LDOs
Uploaded: 2016-11-09T02:36:40.000Z
Duration: 3 min 16 s
Description: Thousands of YouTube videos with English-Chinese subtitles! Now you can learn to understand native speakers, expand your vocabulary, and improve your pronunciation...

In applications that need to run from a small battery cell for longer periods,

Sentences with advanced comparative

you want to make the application average power consumption as low as possible.

These applications will often run in sleep mode most of the time,

To minimize the power consumption in sleep mode,

you need to selects parts with very low quiescent current,

and this is where Richtek low Iq LDOs are really suitable.

LDO Iq or LDO quiescent current is the current

that is consumed by the IC internal feedback control and drive circuits.

It is normally measured by measuring the current

In applications that need to run from batteries,

because even if the LDO output has zero load current,

the battery is slowly drained by the LDO quiescent current.

contains LDOs with quiescent currents down to 1µA,

Here is a typical battery powered application

where a micro controller periodically sends out data via an RF link.

the micro controller is in sleep mode most of the time,

When the micro controller and RF section become active,

the load momentarily goes up from 10µA to 25mA.

The Low Iq LDO RT9063 provides a stable 2.8V supply to the micro controller,

and the LDO ground current stays relatively constant at 1µA in the low load range,

But at higher load currents, the ground current increases.

This is done to improve the dynamic behavior of the LDO

the internal control circuit uses more energy to regulate the output voltage.

here is a transient measurement with a fast load step from 10µA to 25mA

due to the LDO's use of dynamic quiescent current,

the LDO can react quickly to the load step.

The LDO output does not drop more than 1.2%,

ensuring stable micro controller operation.

The Richtek LDO portfolio contains many low Iq parts.

In different packages, with or without an Enable pin

and input voltage ranging from 6V up to 36V.

For more information, please click the link at the left side,

or visit the Richtek website at www.richtek.com

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Low Iq LDOs

sleep

run

life

send