LT1431 Ver la hoja de datos (PDF) - Linear Technology
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LT1431 Datasheet PDF : 14 Pages
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LT1431
Typical Applications
PNP Low Dropout 5V Regulator*
VIN
0.1µF
1k
0.015µF
150Ω
20Ω**
2W
47Ω
MJE2955
2N2219
2
1
COMP
COLL
3 V+
REF 8
4 RTOP LT1431
RMID 7
GND-S
GND-F
5
6
MEASURED DROPOUT VOLTAGE
420mV AT 4A
190mV AT 2A
95mV AT 1A
60mV AT 0.5A
*NO SHORT-CIRCUIT PROTECTION
**MAY BE INCREASED AT LOWER WATTAGE
FOR LOWER OUTPUT CURRENTS
5V
+
330µF
LT1431 TA07
FET Low Dropout 5V Regulator with Current Limit
VIN ≥ 5.2V
+
Measured Dropout Voltages
ILOAD
2A
1A
0.5A
MTP50N05EL
47mV
22mV
11.5mV
MTM25N05L
145mV
73mV
37mV
12V
MTP50N05EL
MTM25N05L
0.002Ω*
D
S
2
3
47µF
G
– +4
1.5k
7 LLTT11000066
5
1N4148
6
1
3 V+
4
RTOP
COLL
REF 8
LT1431
7
RMID
GND-S
GND-F
5
6
*1.5" #23 SOLID COPPER WIRE
~0.002Ω m 3A LIMIT
5V, 2.5A
+
47µF
LT1431 • TA08
1431fd
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