參數(shù)資料
型號： CAT102EUK-TE7
英文描述： Precision, Adjustable Shunt Regulator (600mV Reference)
中文描述： 精密，可調(diào)式并聯(lián)穩(wěn)壓器（600mV的參考）
文件頁數(shù)： 1/9頁
文件大小： 81K
代理商： CAT102EUK-TE7
1
FEATURES
I
Low voltage reference: 600mV
I
Low temperature coefficient reference: 25ppm
I
Accurate 600mV reference voltage:
+6mV at T
J
=25
°
C
I
High PSRR: 45dB at 300kHz
I
High line rejection: +1mV (V
CC
from 2.2V to 18V)
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.
CAT102
Precision, Adjustable Shunt Regulator (600mV Reference)
- +1% Initial Accuracy
- SOT23 Package
I
Low supply current: 300
μ
A
I
Open collector output
I
Directly drives optocouplers
I
Compact 5-lead SOT23 package
I
Industrial temperature range: -40
°
C to 85
°
C
2003 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Doc. No. 4007, Rev. L
APPLICATIONS
I
SMPS control loop
I
Low temperature coefficient voltage reference
I
Power management
I
Replaces zener diodes
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
PIN CONFIGURATION
I
Isolated DC-to-DC converters
I
Network, telecom and cellular base station
power supplies
I
Adjustable voltage reference
+
–
+
–
OUT
FB
IN
VREF
600mV
Error
Amplifier
GND
3
5
2
1
SOT23-5
TOP VIEW
IN
OUT
2
3
1
NC
5
4
FB
GND
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