TLF4949EJ

The TLF4949 is a monolithic integrated 5V voltage regulator with a very low dropout output and additional functions as undervoltage reset with power-on reset delay and input voltage sense. It is designed to supply microcontroller controlled systems especially in automotive applications.

ParametricTLF4949EJ
Operating Voltage  min  max5.5V  28.0V
Output Voltage Type5.0V
Accuracy2.0%
Output Current (max.)100mA
Regulator TypeLinear
Dropout Voltage500mV
Quiescent Current180µA
Operating Temperature  min  max-40.0°C  125.0°C
Over Voltage Protectionno
Enable (=Inhibit)no
Resetyes
Power Failno
Power Goodno
Status Outputno
Holdno
Watchdogno
Early Warningyes
Sales Product NameTLF4949EJ
OPNTLF4949EJXUMA1
Product Statusactive and preferred
Package NamePG-DSO-8
Completely lead freeyes
Halogen freeyes
RoHS compliantyes
Packing Size2500
Packing TypeTAPE & REEL
Moisture Level3
Summary of Features:
  • Operating DC Supply Voltage Range 5 V to 28 V
  • Transient Supply Voltage up to 40 V
  • Extremely low Quiescent Current in Standby Mode
  • High Precision Standby Output Voltage 5 V ±1%
  • Output Current Capability up to 100 mA
  • Very low Dropout Voltage less than 0.5 V
  • Reset Circuit sensing the Output Voltage
  • Programmable Reset Pulse Delay with External Capacitor
  • Voltage Sense Comparator
  • Thermal Shutdown and Short Circuit Protections
  • Suitable for Use in Automotive Electronics
  • Green Product (RoHS)
  • AEC Qualified
Benefits:
  • Cost effective voltage regulator with reset and early warning
  • Compatible with 4949 variants
  • High reset immunity
Target Applications:
  • Automotive voltage regulator for microcontroller
功能框图
Data Sheet
TitleSizeDateVersion
TLF4949 Data Sheet,EN1.7 MB16 五月 201201_00
Product Brochure
TitleSizeDateVersion
What the designer should know: introduction to Automotive Linear Voltage Regulator3.9 MB17 七月 2014
Application Notes
TitleSizeDateVersion
TLE4267/TLE4267-2 - INH/HOLD Function；EN244 KB27 四月 201501_33
Product Selection Guide
TitleSizeDateVersion
Automotive Power Selection Guide；EN10.6 MB19 一月 201601_01
Material Content SheetInfo
TitleSizeDateVersion
MCDS_2015-04-17_11-59-53_MA000974774_PG-DSO-8-52.pdf；EN27 KB17 四月 201501_00
MCDS_2013-08-28_22-11-02_MA001001408_PG-DSO-8-52.pdf23 KB31 十月 201301_00
PCB Design Data
TitleSizeDateVersion
PCB Footprints & Symbols - Altium - v1.03.6 MB02 十月 201301_00
PCB Footprints & Symbols - Cadence - v1.02.6 MB02 十月 201301_00
PCB Footprints & Symbols - Eagle - v1.0569 KB02 十月 201301_00
PCB Footprints & Symbols - Mentor - v1.03.5 MB02 十月 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-DSO-8-52 | TLF4949EJXUMA1；EN503 KB11 四月 201601_00
PCB Design Data
TitleSizeDateVersion
PCB Footprints & Symbols - Altium - v1.03.6 MB02 十月 201301_00
PCB Footprints & Symbols - Cadence - v1.02.6 MB02 十月 201301_00
PCB Footprints & Symbols - Eagle - v1.0569 KB02 十月 201301_00
PCB Footprints & Symbols - Mentor - v1.03.5 MB02 十月 201301_00
EN TLF4949EJ
What the designer should know: introduction to Automotive Linear Voltage Regulator linear-post-regulators
EN TLE42764D+V50
EN TLE8203E
EN TLF4949EJ
MCDS_2013-08-28_22-11-02_MA001001408_PG-DSO-8-52.pdf TLF4949EJ
EN TLF4949EJ
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
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