Datasheet CAT102 (ON Semiconductor) - 2

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CAT102 Precision, Adjustable Shunt Regulator (600 mV Reference) FEATURES DESCRIPTION
„
600 mV low voltage reference
The CAT102 is a low-voltage reference and amplifier. „ Designed for the control loop of low-voltage power
±6 mV initial accuracy
supplies, the reference voltage has been designed for „
High PSRR: 45 dB at 300 kHz
600 mV. Over a temperature from -40°C to 85°C, the „
Better line regulation: 1 mV (V
reference voltage is within 8 mV of the nominal
IN from 2.2 V to 18 V)
„ 600mV. In addition, the error amplifier output and the
Low supply current: 90 µA
supply voltage pin (IN) are on separate pins. „
Open drain output
„
Directly drives optocouplers
Power supply rejection is a high 45 dB at 300 kHz. „ The output, OUT, can sink 20 mA at a maximum
Industrial temperature range of -40ºC to 85ºC
saturation voltage of 250 mV. „
RoHS-compliant 5-lead TSOT23 package
When combined with an optocoupler, the CAT102 can
APPLICATION
be used as an error amplifier that controls the „ feedback loop in isolated low-output voltage switching
SMPS control loop
TION power supplies. „
onsemi Low temperature coefficient voltage reference
„
Power management
„
Replaces zener diodes
YOUR „
Isolated DC-to-DC converters For Ordering Information details, see page 7.
„ R INFORMA
Network, telecom and cellular base station
ACT „
Adjustable voltage reference
RECOMMENDED FOR NEW DESIGN CONT ATIVE FO
PIN CONFIGURATION FUNCTIONAL DIAGRAM DISCONTINUED TSOT-23 5L
IN OUT
Top View
PLEASE 5 3 Error FB 1 1 5 8 IN Amplifier 1 GND 2 2 FB +REPRESENT OUT 4 3 4 5 NC THIS DEVICE IS NOT – VREF +
PIN DESCRIPTION
– 600mV
Pin Name Function
FB Inverting input to error amplifier 2 GND GND Ground Output of error amplifier. Source & sink OUT current capability is 20 mA. NC No connection IN Positive supply © 2009 SCILLC. All rights reserved. 1 Doc. No. MD-4007 Rev. 17 Characteristics subject to change without notice Document Outline CAT102 Precision, Adjustable Shunt Regulator (600 mV Reference) FEATURES APPLICATION DESCRIPTION FUNCTIONAL DIAGRAM PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS APPLICATIONS INFORMATION TYPICAL APPLICATION PACKAGE OUTLINE DRAWING EXAMPLE OF ORDERING INFORMATION ORDERING PART NUMBER REVISION HISTORY