The S-19721 is a voltage tracker with the industry’s lowest class^* offset voltage of ±4.5mV.
The low offset voltage contributes to a low permissible error in voltage tracking, improving sensor reading accuracy of various sensors.
The S-19721 can output 250mA and it can be used selectively for various sensors depending on the application, along with the S-19720 which uses a 50mA output.
*Based on our research as of July 2023.

» What is a Voltage Tracker?

In ADAS (Advanced Driver-Assistance System) and other systems, the ability of ICs to notify the outside world of their own abnormalities contributes to further improvements in safety design.

The S-19721 has an anomaly notification that detects its own abnormal activity and outputs its status.
It can handle three types of abnormalities: overvoltage, overcurrent at the output pin, and heating of itself. It is possible to select the appropriate combination of outputs according to the specifications and applications.

The S-19721 also integrates various protection functions to protect the IC from those abnormal conditions.

The S-19721 with its 36V input and 250mA output current is housed in a standard HSOP-8A package.

The lineup also includes a high heat dissipation TO-252-9S package that is the power source for heat distribution of LDO, as well as a compact HSNT-8(2030) package that contributes to reducing the footprint.