AMS2954
TYPICAL APPLICATIONS (Continued)
Wide Input Voltage Range Current Limiter
+VIN
8
+VIN
*VOUT » VIN
5
3
1
ERROR
OUPUT
VOUT
ERROR
AMS2954
SHUTDOWN
INPUT
SD
GND
FB
4
7
*Minimum Input-Output voltage ranges from 40mV to 400mV, depending on load current. Current limit is typically 260 mA
Low Drift Current Source
5Volt Current Limiter
+V = 2
30V
IL
LOAD
5V BUS
8
VIN
+VIN
1
VOUT
AMS2954 -5.0
»
*VOUT 5V
AMS2954
VOUT
3
SHUTDOWN
INPUT
SD
GND
0.1mF
m
1 F
FB
GND
4
7
+
R
1%
1mF
*Minimum Input-Output voltage ranges from 40mV to 400mV, depending on
load current. Current limit is typically 260 mA
5V Regulator with 2.5V Sleep Function
Open Circuit Detector for 4 to 20mA Current Loop
+5V
+VIN
C - MOS
GATE
4.7k
W
*SLEEP
INPUT
4
20mA
*OUTPUT
5
1
8
47kW
k
W
470
+VIN
8
1
7
VOUT
+VIN
ERROR
OUPU
T
+VOUT
AMS2954
4
5
1
VOUT
ERROR
1N4001
2
FB
AMS2954
200
1%
100
k
k
k
W
3
SHUTDOWN
INPUT
GND
4
SD
GND
pF
100
+
3.3m
F
0.1mF
2N3906
360
FB
1N457
W
4
7
1%
MIN. VOLTAGE
» 4V
100
W
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
ADMOS [ ADVANCED MONOLITHIC SYSTEMS ]
