DESCRIPTION

The CAT102 is a low-voltage reference and amplifier. Designed for the control loop of low-voltage power supplies, the reference voltage has been designed for 600 mV. Over a temperature from -40°C to 85°C, the reference voltage is within 8 mV of the nominal 600mV. In addition, the error amplifier output and the supply voltage pin (IN) are on separate pins.

FEATURES

■ 600 mV low voltage reference

■ ±6 mV initial accuracy

■ High PSRR: 45 dB at 300 kHz

■ Better line regulation: 1 mV (VIN from 2.2 V to 18 V)

■ Low supply current: 90 µA

■ Open drain output

■ Directly drives optocouplers

■ Industrial temperature range of -40ºC to 85ºC

■ RoHS-compliant 5-lead TSOT23 package

APPLICATION

■ SMPS control loop

■ Low temperature coefficient voltage reference

■ Power management

■ Replaces zener diodes

■ Isolated DC-to-DC converters

■ Network, telecom and cellular base station

■ Adjustable voltage reference