Datasheet

10
LT1020
sn1020 1020fcs
Dual Output Regulator
1020 TA12
6
1M
51k
V
OUT
0.001µF
+
478 9
1M
10µF
2
11
FB
5V
V
IN
3
GND
–
+
REF
LT1020
+
10µF
0.01µF
+IN
–IN
190k
50k
2N2907
12V
OUT
V
IN
≥ 12.3V
+
NC
10µF
0.001µF
1M
1M
5V
2
11
3
9
V
IN
V
OUT
FB
GND
LT1020
1020 TA11
13
DROP-
OUT
1M
2N3904*
TRANSISTOR USED BECAUSE OF
LOW LEAKAGE CHARACTERISTICS
*
Maintaining Lowest I
Q
at Dropout Dual Output 150mA Regulator
Dual Output Positive Regulator
1 Amp Low Dropout Regulator
10µF
0.001µF
100k
2
11
3
9
V
IN
V
OUT
FB
GND
LT1020
1020 TA09
5V
51k
V
IN
> 5.2V
–5V REG
10mA
500k
COMP
PNP
–V
IN
7
46
500k
1M
8
5
500k
10µF
0.001µF
+INPUT
REF
OUT
COMP
NPN
–INPUT
2N3904
+
+
10µF
0.001µF
100k
2
11
3
9
V
IN
V
OUT
FB
GND
LT1020
1020 TA10
5V
51k*
V
IN
> 5.2V
–5V REG
150mA
500k
COMP
PNP
–V
IN
7
46
100k200k
8
5
500k
10µF
0.001µF
+INPUT
REF
OUT
COMP
NPN
–INPUT
4.7k
0.0047µF
51k*
2N3904
FOR TEMPERATURES GREATER THAN
70°C, REDUCE 51k RESISTORS TO 15k.
I
Q
WILL INCREASE
*
2N3904
+
+
+
220µF
†
0.001µF
100k
2
11
3
9
V
IN
V
OUT
FB
GND
LT1020
1020 TA06
0.01µF
V
OUT
5V
10k*
2.2k
10
150Ω*
*
V
IN
100k
C
L
FOR CURRENT LIMIT ≈ 1.5A
MUST HAVE LOW ESR.
SEVERAL 100µF CAPACITORS
CAN BE PARALLELED
*
†
MJE2955
SEE LT1129 DATA SHEET FOR 700mA OUTPUT
TYPICAL APPLICATIO S
U