TLE4251D

The TLE 4251 is a monolithic integrated low drop voltage tracker in the very small SMD package PG-TO252-5-1. 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 40 V are tracked to a reference voltage given to the adjust input via an external resistor. The output is able to drive loads up to 400 mA while it follows e.g. the 5 V output of a main voltage regulator within an accuracy of 0.5%. For loads up to 300 mA the tracking accuracy is 0.2%. The TLE 4251 can be switched in stand-by mode via the enable EN input which causes the current consumption to drop to very low values. This feature makes the IC suitable for low power battery applications.

ParametricTLE4251D
Operating Voltage  min  max4.0V  40.0V
Output Voltage Typeadj.
Accuracy0.5%
Output Current (max.)300mA
Regulator TypeLinear->Tracker
Dropout Voltage280mV
Quiescent Current230µA
Operating Temperature  min  max-40.0°C  150.0°C
Over Voltage Protectionno
Enable (=Inhibit)yes
Resetno
Power Failno
Power Goodno
Status Outputno
Holdno
Watchdogno
Early Warningno
Automotive Qualifiedyes
Sales Product NameTLE4251D
OPNTLE4251DATMA1
Product Statusactive and preferred
Package NamePG-TO252-5
Completely lead freeno
Halogen freeyes
RoHS compliantyes
Packing Size2500
Packing TypeTAPE & REEL
Moisture Level1
Summary of Features:
  • Output tracking tolerance ≤ ±0.2%
  • 400 mA output current capability
  • Enable Function
  • Very low current consumption in OFF mode
  • Wide operation range: up to 40 V
  • Wide temperature range: -40 °C ≤ T j ≤ 150 °C
  • Output protected against short circuit
  • Overtemperature protection
  • Reverse polarity proof
  • 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
Data Sheet
TitleSizeDateVersion
TLE4251_DS_29,EN360 KB02 Sep 200802_09
Product Brochure
TitleSizeDateVersion
What the designer should know: introduction to Automotive Linear Voltage Regulator3.9 MB17 Jul 2014
Application Notes
TitleSizeDateVersion
TLE4267/TLE4267-2 - INH/HOLD FunctionEN244 KB27 Apr 201501_33
Recommendations for Assembly of Infineon TO Packages1.2 MB04 Jul 2013
Product Selection Guide
TitleSizeDateVersion
Automotive Power Selection GuideEN10.6 MB19 Jan 201601_01
Material Content SheetInfo
TitleSizeDateVersion
MCDS_2013-08-28_22-55-43_MA000722732_PG-TO252-5-11.pdf23 KB31 Oct 201301_00
PCB Design Data
TitleSizeDateVersion
PCB Footprints & Symbols - Altium - v1.03.6 MB02 Oct 201301_00
PCB Footprints & Symbols - Cadence - v1.02.6 MB02 Oct 201301_00
PCB Footprints & Symbols - Eagle - v1.0569 KB02 Oct 201301_00
PCB Footprints & Symbols - Mentor - v1.03.5 MB02 Oct 201301_00
Evaluation Boards
BoardFamilyDescriptionStatus
TLS810C1EJV33 BOARDLinear Voltage RegulatorThe TLS810C1EJV33 is a linear voltage regulator of wide input voltage range, low drop out voltage and ultra low quiescent current. With an input voltage range of 2.75V to 42V and ultra low quiescent of only 8.5μA the regulators are perfectly suitable for automotive or any other supply systems connected permanently to the battery. The TLS810C1EJV33 is available in 3.3V output voltage version with an accuracy of 2 % and output current capability up to 100mA. It is stable with only a small ceramic capacitor of 1μF at the output. With extended operating range down to 2.75V, TLS810C1EJV33 is also suitable to supply automotive systems operating during cranking condition. TLS810C1EJV33 includes internal protection features like output current limitation and over-temperature shutdown. The output voltage is supervised by the Reset feature, including under-voltage reset and delayed reset release at power-on.Channel=ff80808112ab681d0112ab69bfb202efTLS810C1EJV33on request
TLS810D1EJV50 BOARDLinear Voltage RegulatorThe TLS810D1EJV50 is a linear voltage regulator featuring wide input voltage range, low drop out voltage and ultra low quiescent current. With an input voltage range of 2.75V to 42V and ultra low quiescent of only 9μA the regulators are perfectly suitable for automotive or any other supply systems connected permanently to the battery. The TLS810D1EJV50 is available in 5.0V output voltage version with an accuracy of 2 % and output current capability up to 100mA. It is stable with only a small ceramic capacitor of 1μF at the output. The device can be switched on and off by the Enable feature leading to a current consumption of less than 1μA. With extended operating range down to 2.75V, TLS810D1EJV50 is also suitable to supply automotive systems operating during cranking condition. TLS810D1EJV50 includes internal protection features like output current limitation and over-temperature shutdown. The output voltage is supervised by the Reset feature, including under-voltage reset and delayed reset release at power-on.TLS810D1EJV50on request
Package Data
TitleSizeDateVersion
PG-TO252-5-11 | TLE4251DATMA1EN482 KB11 Apr 201601_00
PCB Design Data
TitleSizeDateVersion
PCB Footprints & Symbols - Altium - v1.03.6 MB02 Oct 201301_00
PCB Footprints & Symbols - Cadence - v1.02.6 MB02 Oct 201301_00
PCB Footprints & Symbols - Eagle - v1.0569 KB02 Oct 201301_00
PCB Footprints & Symbols - Mentor - v1.03.5 MB02 Oct 201301_00
EN TLE4251G
What the designer should know: introduction to Automotive Linear Voltage Regulator linear-post-regulators
Recommendations for Assembly of Infineon TO Packages IFX21004TN+V51
EN TLE42764D+V50
EN TLE8203E
MCDS_2013-08-28_22-55-43_MA000722732_PG-TO252-5-11.pdf TLE4251D
EN TLE4251D
PCB Footprints & Symbols - Altium - v1.0 IFX1763XEJ+V33
PCB Footprints & Symbols - Cadence - v1.0 IFX1763XEJ+V33
PCB Footprints & Symbols - Eagle - v1.0 IFX1763XEJ+V33
PCB Footprints & Symbols - Mentor - v1.0 IFX1763XEJ+V33