VIN
R3
R1
0.1%
VREF
R2
0.1%
TYPICAL PERFORMANCE CHARACTERISTICS
VOUT
VIN
R2
ISINK
Q1
SPX432
SPX432
R1
0.1%
Shunt Regulator, VOUT = (1+R1/R2)VREF.
Constant Current Sink ISINK = VREF/R1.
VOUT
R3
Opto Isolator
Isolated
Feedback
R1
0.1%
R3 sets feedback gain,
C1 provides feedback
compensation
+
C2
C1
SPX432
VOUTRTN
R2
0.1%
Reference Amplifier for Isolated Feedback in Off-Line
DC-DC Converters.
VIN
R1
0.1%
VOUT
R3
R2
Q1
0.1%
SPX432
VIN
R5
R4
SPX432
R3
C1
R1
0.1%
R2
0.1%
VOUT
Precision High Current Series Regulator,
VOUT = (1+R1/R2)VREF.
VCC
R2
VIN
R1
SPX432
VOUT
High Current Shunt Regulator, VOUT = (1+R1/R2)VREF.
Single Supply Comparator with Temperature
Compensated Threshold, VIN threshold = 1.24V.
Date: 12/11/04
SPX432 1.24V Precision Adjustable Shunt Regulator
7
© Copyright 2004 Sipex Corporation