Datasheet

9
LT1019
1019fd
TYPICAL APPLICATIO S
U
Trimming LT1019-5 Output to 5.120V
Trimming LT1019-10 Output to 10.240V
V
OUT
5k*
±1% TRIM
OUT
IN
LT1019-5
TRIM
GND
V
IN
1019 TA04
4.02k
1%
41.2k
1%
*LOW TC CERMET
V
OUT
5k*
±1% TRIM
OUT
IN
LT1019-10
TRIM
GND
V
IN
1019 TA06
4.02k
1%
90.9k
1%
*LOW TC CERMET
Output Current Boost with Current Limit
V
OUT
±11V COMPLIANCE
IN
OUT
LT1019-2.5
TRIM
GND
–
+
15V
11.5k
1%
5k*
8.25k
1%
2.49M
1%
I
OUT
= 1µA
Z
OUT
≥ 1011Ω
LT1012
*LOW TC CERMET, TRIM RANGE = ±1.5%
1019 TA07
LT1019
OUT
GND
IN
D1*
R1*
V
+
R2*
–V
REF
AT 50mA–V
IN
1019 TA10
*R1 =
V
+
– 5V
2mA
, R2 =
V
–
– V
REF
1mA
, D1 = V
REF
+ 5V
Q1
2N2905
Negative Series Reference
Precision 1µA Current Source
R1
220Ω
IN
LT1019
OUT
GND
1019 TA08
2µF SOLID TANTALUM
I
LOAD
≤ 100mA
8.2Ω
GLOWS IN
CURRENT LIMIT
(DO NOT OMIT)
LED
V
+
≥ (V
OUT
+ 2.8V)
2N2905