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 600mV. Over a junction temperature from -40°C to 105°C, the reference voltage is within 8mV of the nominal 600mV. In addition, the error amplifier output and the supply voltage pin (IN) are on separate pins.

FEATURES

■ 600mv low voltage reference

■ 35ppm low temperature coefficient

■ ±6mV initial accuracy

■ High PSRR: 45dB at 300kHz

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

■ Low supply current: 90µA

■ 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