Part Number Search

Cross Reference Search

About information presented in this cross reference

The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.

Keyword Search

Parametric Search

Stock Check & Purchase

Select Product Categories

Innovation Centre

At the Toshiba Innovation Centre we constantly strive to inspire you with our technologies and solutions. Discover how to place us at the heart of your innovations.

What is the quiescent current of an LDO?

Figure 1 Quiescent current
Figure 1 Quiescent current

Quiescent current (IB) is the current consumed by the internal control circuitry of an LDO when it is active. Quiescent current is defined as the current flowing from the GND terminal. The datasheets show a value under a zero-load condition (IOUT=0 A) at the specified input voltage (VIN), bias voltage (VBIAS), and temperature. LDOs with low quiescent current are suitable for battery-operated mobile applications.

Figure 2 Example of an IB-VIN curve
Figure 2 Example of an IB-VIN curve

Also see the following documents and web page for a description of quiescent current:

For other LDO regulators, visit the main web page of LDO regulators at:

A new window will open