Automotive Low Dropout Linear Voltage Regulator OPTIREG™ TLS850D0TAV33 application circuit for 3.3V output voltage

Open online SPICE simulator circuit link: atv_LDO_TLS850D0TAV33_application_circuit.tsc

Automotive Low Dropout Linear Voltage Regulator TLS850D0TA V33
Application Circuit

The TLS850D0TAV33 is a high performance very low dropout linear voltage regulator for 3.3 V
supply in a PG-TO263-7 package. With an input voltage range of 3 V to 40 V and very low
quiescent of only 40 μA, these regulators are perfectly suitable for automotive or any other
supply systems connected to the battery permanently. The TLS850D0TAV33 provides an
output voltage accuracy of 2 % and a maximum output current up to 500 mA. The new loop
concept combines fast regulation and very good stability while requiring only one small
ceramic capacitor of 1 μF at the output. At currents below 100 mA the device will have a
very low typical dropout voltage of only 80 mV.

Thermal model description:
THERMAL_MODEL = 1: JEDEC 1s0p 600mm2 cooling area
THERMAL_MODEL = 2: JEDEC 1s0p 300mm2 cooling area
THERMAL_MODEL = 3: JEDEC 1s0p, footprint
THERMAL_MODEL = 4: JEDEC 2s2p
THERMAL_MODEL = 10: No self-heating, only TEMP value used as a temperature

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
over temperature
- the thermal simulations represent an approximation of the actual thermal
behavior of the device according to the JEDEC standards at power = 0.85 Watt
and Ambient Temperature = 85 °C