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Features

■ Input voltage range: 7 V to 18 V

■ Output currents up to 750 mA

■ Fixed Precision output 1 voltage: 5.1 V ±2

■ Adjustable output 2 voltage: 2.8 to 16 V

■ Output 1 with reset function

■ Output 2 with disable function by TTL input

■ Short-circuit protection at both outputs

■ Thermal protection

■ Low dropout voltage

Description

The TDA8139 and the TDA8139/D are monolithic

dual positive voltage regulators designed to

provide a fixed precision output voltage of 5.1 V

and an adjustable voltage between 2.8 and 16 V

for currents up to 750 mA.

An internal reset circuit generates a reset pulse

when the voltage of OUTPUT1 drops below the

regulated voltage value.