Automotive Low Dropout (LDO) Linear Fixed Voltage Regulator OPTIREG™ TLS810A1LDV50 Application Circuit

Open online SPICE simulator circuit link: atv_LDO_TLS810A1LDV50_application_circuit.TSC

Automotive Low Dropout Linear Fixed Voltage Regulator OPTIREG™ TLS810A1LDV50
Application Circuit

The TLS810A1 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 2.75 V to 42 V and ultra low quiescent of only 5 µA, the regulator is perfectly
suitable for automotive or any other supply systems connected permanently to the battery.
The TLS810A1LDV50 is the fixed 5 V output version with an accuracy of 2 % and output current capability up
to 100 mA.
The new regulation concept implemented in TLS810A1 combines fast regulation and very good stability while
requiring only a small ceramic capacitor of 1 μF at the output.
The tracking region starts already at input voltages of 2.75 V (extended operating range). This makes the
TLS810A1 also suitable to supply automotive systems that need to operate during cranking condition.
Internal protection features like output current limitation and overtemperature shutdown are implemented
to protect the device against immediate damage due to failures like output short circuit to GND, over-current
and over-temperature.

Thermal model description:
THERMAL_MODEL = 1: DS08 1s0p 600mm2 cooling area
THERMAL_MODEL = 2: DS08 1s0p, footprint
THERMAL_MODEL = 3: JEDEC 2s2p
THERMAL_MODEL = 10: No self-heating, only TEMP value used as a temperature