550mA Output LDO Regulator with WDT and Voltage Detector - BD4271FP2-C

BD4271FP2-C is automotive voltage regulator with watchdog timer and offers the output current of 550mA while limiting the quiescent current low. A logical “HIGH” at the CTL pin enables the LDO regulator and “LOW” disables the LDO regulator and keeps current consumption low. A reset signal is generated for an output voltage VO of Typ 4.65V. The reset delay time and watchdog time (WDT) can be programmed by the external capacitor.

Part NumberStatusPackageUnit QuantityMinimum Package QuantityPacking TypeRoHS
BD4271FP2-CE2ActiveTO263E-7500500TapingYes

BD4271FP2-C Data Sheet

Specifications
GradeAutomotive
ch1
Vin(Min.)[V]5.5
Vin(Max.)[V]45.0
Vout (Typ.) [V]5
Vout Precision±2.0%
Iout(Max.)[A]0.55
Circuit Current[mA]0.075
Shutdown FunctionNo
Thermal Shut-downYes
Over Current ProtectionYes
Under Voltage Lock OutYes
I/O Voltage Difference (Typ.)[V]0.2(Io=300mA)
Ripple Rejection [dB]60.0
Load Regulation[mV]10
Operating Temperature (Min.)[°C]-40
Operating Temperature (Max.)[°C]-150
Technical Documents
Features
  • AEC-Q100 qualified
  • Low ESR ceramic capacitors applicable for output
  • Low drop voltage: PDMOS output transistor
  • Power on and under-voltage reset
  • Programmable reset delay and watchdog time by external capacitor
  • Enable input
  • Over Current Protection (OCP)
  • Thermal Shut Down (TSD)
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