Automotive Low Dropout (LDO) Linear Voltage Regulator OPTIREG™ TLE42664G application circuit for 5V output voltage

Open online SPICE simulator circuit link: atv_LDO_TLE42664G_application_circuit.tsc

Automotive Low Dropout Linear Voltage Regulator OPTIREG™ TLE42664G
Application Circuit

It is functional compatible to the TLE4266, but has a reduced quiescent current of typ. 40µA.
The TLE42664 is especially designed for applications requiring very low standby currents,
e.g. with a permanent connection to the car’s battery. It can be disabled/enabled by the
integrated EN pin. The device is available in the small surface mounted PG-SOT223-4
package and is pin compatible to the TLE4266-2 and the TLE4266. The device is designed
for the harsh environment of automotive applications. Therefore it is protected against
overload, short circuit and overtemperature conditions by the implemented output current
limitation and the overtemperature shutdown circuit. The TLE42664 can be also used in
all other applications requiring a stabilized 5 V voltage. An input voltage up to 45 V is
regulated to V Q,nom = 5 V with a precision of ±3 %. An accuracy of ±2 % is kept for load
currents up to 50 mA. A logical “HIGH” at the ENABLE pin enables the device.

Model performance :
- dynamic behavior not modeled (CQ/ESR stability, line/load transient
response, start-up, PSRR)
- static behavior is modelled by approximation to the real behavior of
the device at temperature = 25°C