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 DESCRIPTION
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. Power supply rejection is a high 45 dB at 300 kHz. The output, OUT, can sink 20 mA at a maximum saturation voltage of 250 mV. For Ordering Information details, see page 7. FUNCTIONAL DIAGRAM 1 FB Error Amplifier VREF + – 600mV IN 5 + – OUT 3 2 GND P...
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