TYPICAL APPLICATIONS
4.75V
OUTPUT
VOLTAGE
_______
ERROR*
+5.0V
+ INPUT
VOLTAGE 1.3V
+
+
* See Application Info. _______
Figure 1. ERROR Output Timing
SPX2950/SPX2951
+VIN
100K
ERROR
OUTPUT
8
5 ______ +VIN
ERROR
1
VOUT
SPX2951
SHUTDOWN
INPUT
3
SD
GND
4
FB
7
1.23V
1.2 to 30V
+
R1
3.3uF
.01uF
VREF
R2
Figure 2. Adjustable Regulator
+VIN
470KΩ ..
8
5 ______ +VIN
ERROR
470KΩ ..
1
V OUT
SPX2951
3
SD
R1
GND
FB
4
7
V OUT
+
1uF
R2
Latch Off When Error Flag Occurs
+VIN
ERROR
OUTPUT
SHUTDOWN
INPUT
8
5 ______ +VIN
ERROR
1
V OUT
SPX2951
3
SD
GND
FB
4
7
*VOUT= VIN
*MINIMUM INPUT-OUTPUT VOLTAGE RANGES FROM 4mV to 400mV.
DEPENDING ON LOAD CURRENT. CURRENT LIMIT IS TYPICALLY 160mA
Wide Input Voltage Range Current Limiter
Rev. 10/30/00