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TLE4250G
Low-Drop Voltage Tracker
Low-Drop Voltage Tracker TLE4250 G
FeaturesOutput tracking tolerance ≤ ± 0.5%50mA output currentCombined Tracking/Enable inputVery low current consumption in off modeLow drop voltageSuitable for use in automotive electronicsWide operation range: up to 40VWide temperature range: –40°C≤Tj ≤150°COutput protected against short circuitOvertemperature protectionReverse polarity proofVery small SMD-Package SCT595
Functional DescriptionThe TLE4250G is a monolithic integrated low-drop voltage tracker in the very small
SMD package SCT595. It is designed to supply e.g. sensors under the severe
conditions of automotive applications. Therefore the device is equipped with additional
protection functions against overload, short circuit and reverse polarity.
Supply voltages up to 40V are tracked to a reference voltage at the adjust input.
Therefore the Adjust pin has to be connected to a reference voltage, e.g. to a 5 V supply
on a micro-controller port.
The output is able to drive a load up to 50 mA while it follows the output of a main voltage
regulator within an accuracy of 0.5%.
The TLE4250G can be switched in stand-by mode via the adjust input which causes
the current consumption to drop to very low values. This feature makes the IC suitable
for low power battery applications.
Figure1Pin Configuration (top view)
Pin Definitions and Functions
Figure2Block Diagram
Worst case, regarding peak temperature; zero airflow; mounted an a PCB 80×80×1.5mm3, heat sink area300mm2.
Note:Maximum ratings are absolute ratings; exceeding any one of these values may
cause irreversible damage to the integrated circuit.
Absolute Maximum Ratings– 40 °C < Tj < 150 °C
Input
Output
Adjust
Temperatures
Thermal Resistances
Operating Range
Electrical CharacteristicsI=13.5V; VADJ>2.5V; –40°C
Output Measured when the output voltage VQ has dropped 100 mV from the nominal value.
