LT1020 Datasheet, PDF (12/16 Pages) Linear Technology – Micropower Regulator and Comparator

LT1020
TYPICAL APPLICATI S
Current Limited 1 Amp Regulator
2.2k
3
V_IN
LT1020
GND
9
V_{OUT 2}
11
FB
0.22µF
270Ω
MJE2955
100k
0.5Ω*
V_IN
2N3906*
V_OUT
5V, 1A
220µF^†
100k
*
SETS CURRENT LIMIT BUT INCREASES
DROPOUT VOLTAGE BY 0.5V.
† MUST HAVE LOW ESR. SEVERAL 100µF
CAPACITORS CAN BE PARALLELED.
1020 TA16
1 Amp Regulator with Precision Current Limit
V_IN
12V
2.2k
100k
8_–
4
LT1020
MJE2955
3
0.22µF
100k
2
7
1.2k
+
FB ¹¹
ISC
SENSE
0.03Ω
6
5
9
† _{MUST HAVE LOW ESR. SEVERAL 100µF}
CAPACITORS CAN BE PARALLELED.
1N4148
270Ω
100k
100µF
220µF^†
V_OUT
5V
1A
R_L
1020 TA17
12
8_–
7₊
Logic Output on Dropout
V_IN
4
3
LT1020
2
1M
11
FB
6
5
9
13
1M
0.001µF
V_OUT
5V
10µF
1M
“DROPOUT”
0V
V_IN
TTL COMPATIBLE
1020 TA18