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TLE4253E

The TLE4253 is a monolithic integrated low-dropout voltage tracking regulator in small PG-DSO-8 packages. The exposed pad (EP) package variant PG-DSO-8 exposed pad offers extremely low thermal resistance. The IC is designed to supply off-board systems, e. g. sensors in engine management systems under the severe conditions of automotive applications. Therefore, the IC is equipped with additional protection functions against reverse polarity and short circuit to GND and battery. With supply voltages up to 40 V, the output voltage follows a reference voltage applied at the adjust input with high accuracy. The reference voltage applied directly to the adjust input or by an e. g. external resistor divider can be 2.0 V at minimum. The output is able to drive loads up to 250 mA at minimum while the device follows the e. g. 5 V output of a main voltage regulator acting as reference with high accuracy. The TLE4253 tracker can be set into shutdown mode in order to reduce the quiescent current to an extremly low value. This makes the IC suitable to low power battery applications.

Parametric TLE4253E Operating Voltage  min  max 3.5V  40.0V Output Voltage Type adj. Accuracy 0.5% Output Current (max.) 250mA Regulator Type Linear->Tracker Dropout Voltage 280mV Quiescent Current 120µA Operating Temperature  min  max -40.0°C  150.0°C Over Voltage Protection no Enable (=Inhibit) yes Reset no Power Fail no Power Good no Status Output no Hold no Watchdog no Early Warning no Sales Product Name TLE4253E OPN TLE4253EXUMA2 Product Status active and preferred Package Name PG-DSO-8 Completely lead free yes Halogen free yes RoHS compliant yes Packing Size 2500 Packing Type TAPE & REEL Moisture Level 3 OPN TLE4253EXUMA1 Product Status active and preferred Package Name PG-DSO-8 Completely lead free yes Halogen free yes RoHS compliant yes Packing Size 2500 Packing Type TAPE & REEL Moisture Level 3

Summary of Features: Tight output tracking tolerance to reference Output voltage adjust down to 2.0 V Stable with ceramic output capacitor Flexibility of output voltage adjust higher or lower than reference,proportional to the reference voltage 250 mA output current capability Low dropout voltage Combined tracking / enable input Very low current consumption in OFF mode PG-DSO-8 packages with lowest thermal resistance Wide input voltage range -42 V ≤ V I  ≤ 45 V Wide temperature range: -40 °C ≤ T j  ≤ 150 °C Output protected against short circuit to GND and battery Overtemperature protection Reverse polarity proof Suitable for use in automotive electronics Green Product (RoHS compliant) AEC Qualified Benefits: Efficient and accurate voltage replication Heat distribution in the system Robust tracking supply Target Applications: Sensor Supply Heat distribution Secondary µcontroller supply Diagrams

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