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Automotive Low Dropout (LDO) Linear Voltage Regulator OPTIREG™ TLS810B1LDV33

Open online SPICE simulator circuit link: atv_LDO_TLS810B1LDV33_application_circuit.TSC

Automotive Low Dropout (LDO) Linear Voltage Regulator OPTIREG™ TLS810B1LDV33

The TLS810B1LDV33 is a high performance very low dropout linear voltage regulator for 5 V supply in a
PG-SSOP-14 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 TLS820F0 V50 provides an output voltage accuracy of 2 % and a maximum output current up
to 200 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 70 mV. The operating range starts already at input voltages of only 3 V
(extended operating range). This makes the TLS820F0 V50 also suitable to supply automotive systems
that need to operate during cranking condition.

The output voltage is supervised by the Reset feature, including Under voltage Reset, delayed Reset
at Power-On and an adjustable lower Reset Threshold. In addition, a Watchdog circuit with flexible
timings is integrated to monitor the microcontroller’s operation. Output current limitation and
overtemperature shutdown are implemented to protect the device against immediate damage.

Thermal model description:
THERMAL_MODEL = 1: SSOP14 1s0p 600mm2 cooling area
THERMAL_MODEL = 2: SSOP14 1s0p footprint
THERMAL_MODEL = 10: No self-heating, only TEMP value used as a temperature

Evaluation Board: TLS820F0EL V50 BOARDBOARD

Technical Assistance
Product info: TLS810B1LDV33
Voltage Regulator
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