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CAT102

ON Semiconductor
Part Number CAT102
Manufacturer ON Semiconductor
Description Adjustable Shunt Regulator
Published Oct 9, 2022
Detailed Description Precision, Adjustable Shunt Regulator (600 mV Reference) CAT102 FEATURES „ 600 mV low voltage reference „ ±6 mV initia...
Datasheet PDF File CAT102 PDF File

CAT102
CAT102

Overview
Precision, Adjustable Shunt Regulator (600 mV Reference) CAT102 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 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.
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.
When combined with an optocoupler, the CAT102 can be used as an error amplifier that controls the feedback loop in isolated low-output voltage switching power supplies.
For Ordering Information details, see page 7.
FUNCTIONAL DIAGRAM 1 FB Error Amplifier VREF + – 600mV IN 5 + – OUT 3 2 GND PIN CONFIGURATION TSOT-23 5L Top View FB 1 1 GND 2 2 OUT 4 3 5 8 IN 4 5 NC PIN DESCRIPTION Pin Name FB GND OUT NC IN Function Inverting input to error amplifier Ground Output of error amplifier.
Source & sink current capability is 20 mA.
No connection Positive supply © 2009 SCILLC.
All rights reserved.
1 Characteristics subject to change without notice Doc.
No.
MD-4007 Rev.
P CAT102 ABSOLUTE MAXIMUM RATINGS (1) Parameters VIN Voltage OUT Voltage FB Voltage VIN, OUT, FB Current Operating Junction Temperature (10 seconds) Lead Soldering Temperature (10 seconds) Storage Temper...


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