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PDF CAT102EUK-TE7 Data sheet ( Hoja de datos )
| Número de pieza | CAT102EUK-TE7 | |
| Descripción | Precision/ Adjustable Shunt Regulator (600mV Reference) | |
| Fabricantes | Catalyst Semiconductor | |
| Logotipo |  |
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CAT102
Precision, Adjustable Shunt Regulator (600mV Reference)
- +1% Initial Accuracy
- SOT23 Package
FEATURES
s Low voltage reference: 600mV
s Low temperature coefficient reference: 25ppm
s Accurate 600mV reference voltage:
+6mV at TJ=25°C
s High PSRR: 45dB at 300kHz
s High line rejection: +1mV (V from 2.2V to 18V)
CC
s Low supply current: 300µA
s Open collector output
s Directly drives optocouplers
s Compact 5-lead SOT23 package
s Industrial temperature range: -40°C to 85°C
APPLICATIONS
s SMPS control loop
s Low temperature coefficient voltage reference
s Power management
s Replaces zener diodes
s Isolated DC-to-DC converters
s Network, telecom and cellular base station
power supplies
s 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
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 are on separate pins.
Power supply rejection is a high 45dB at 300kHz. The
output, OUT, can sink 20mA at a maximum saturation
voltage of 250mV.
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.
FUNCTIONAL DIAGRAM
1
FB
Error
Amplifier
IN
5
+
VREF
+
–
600mV
–
OUT
3
PIN CONFIGURATION
SOT23-5
TOP VIEW
FB 1
5 IN
GND 2
OUT 3
4 NC
2
GND
© 2003 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 4007, Rev. L
1 page  
TYPICAL PERFORMANCE CHARACTERISTICS
CAT102
FB Bias Current vs. Temperature (VCC=2.5V)
0
-10
-20
-30
-40
-50
-60
-70
-40
0
40 80 120
Junction Temperature (°C)
Gain vs. Frequency
110
90
70
50
30
10
-10
0.01 0.1 1 10 100 1000 10000
Frequency (kHz)
Reference Voltage
630
10mA
620
610
600
590
580
570
-40
0 40 80 120
Junction Temperature (°C)
5 Doc. No. 4007, Rev. L
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet CAT102EUK-TE7.PDF ] | |
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