LT1965
TYPICAL APPLICATION
Adjustable Current Source
R5, 0.01Ω
LT1965
LOAD
IN
OUT
R1
1k
+
+
C1
10μF
C4
10μF
SHDN
GND
ADJ
V
> 2.7V
IN
LT1004-1.2
R4
R6
R8
100k
R2
80.6k
C3
1μF
2.2k 2.2k
R3
2k
R7
470Ω
2
8
–
1
1/2
LT1366
1965 TA04
3
+
4
C2
3.3μF
NOTE: ADJUST R1 FOR
0A TO 1.1A CONSTANT-CURRENT
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LT1129
700mA, Micropower, LDO
V : 4.2V to 30V, V
= 3.8V, V = 0.40V, I = 50μA, I = 16μA;
IN
OUT(MIN) DO Q SD
DD, SOT-223, S8, TO220-5 and TSSOP20 Packages
LT1761
LT1762
LT1763
100mA, Low Noise Micropower, LDO
150mA, Low Noise Micropower, LDO
500mA, Low Noise Micropower, LDO
V : 1.8V to 20V, V = 1.22V, V = 0.30V, I = 20μA, I = < 1μA,
IN
OUT(MIN)
DO
Q
SD
Low Noise < 20μV
, Stable with 1μF Ceramic Capacitors, ThinSOT™ Package
RMS
V : 1.8V to 20V, V
= 1.22V, V = 0.30V, I = 25μA, I = < 1μA,
DO Q SD
IN
OUT(MIN)
Low Noise < 20μV
, MS8 Package
RMS
V : 1.8V to 20V, V
= 1.22V, V = 0.30V, I = 30μA, I = < 1μA,
DO Q SD
IN
OUT(MIN)
Low Noise < 20μV
, S8 Package
RMS
LT1764/LT1764A 3A, Low Noise, Fast Transient Response,
LDO
V : 2.7V to 20V, V
= 1.21V, V = 0.34V, I = 1mA, I = < 1μA, Low Noise
IN
OUT(MIN) DO Q SD
< 40μV
, “A” Version Stable with Ceramic Capacitors, DD and TO220-5 Packages
RMS
LTC1844
150mA, Very Low Drop-Out LDO
V : 1.6V to 6.5V, V
= 1.25V, V = 0.08V, I = 35μA, I = < 1μA,
IN
OUT(MIN) DO Q SD
Low Noise < 60μV
, ThinSOT™ Package
RMS
LT1962
300mA, Low Noise Micropower, LDO
V : 1.8V to 20V, V
= 1.22V, V = 0.27V, I = 30μA, I = < 1μA,
IN
OUT(MIN) DO Q SD
Low Noise < 20μV
, MS8 Package
RMS
LT1963/LT1963A 1.5A, Low Noise, Fast Transient Response, V : 2.1V to 20V, V
= 1.21V, V = 0.34V, I = 1mA, I = < 1μA,
DO Q SD
IN
OUT(MIN)
LDO
Low Noise < 40μV
, “A” Version Stable with Ceramic Capacitors;
RMS
DD, TO220-5, SOT-223 and S8 Packages
LT3020
LT3021
LT3023
LT3024
LT3027
LT3028
100mA, Low Voltage V , V
= 0.9V, V : 0.9V to 10V, V
= 0.20V, V = 0.15V, I = 120μA, I = 3μA, DFN and
DO Q SD
DO IN(MIN)
IN
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
LDO
MS8 Packages
500mA, Low Voltage V , V
= 0.9V, V : 0.9V to 10V, V
= 0.20V, V = 0.16V, I = 120μA, I = 3μA, DFN and
DO Q SD
DO IN(MIN)
IN
LDO
S8 Packages
Dual, 2x 100mA, Low Noise Micropower,
LDO
V : 1.8V to 20V, V
= 1.22V, V = 0.30V, I = 40μA, I = < 1μA, DFN and
DO Q SD
IN
MS10 Packages
Dual, 100mA/500mA, Low Noise
Micropower, LDO
V : 1.8V to 20V, V
= 1.22V, V = 0.30V, I = 60μA, I = < 1μA, DFN and
DO Q SD
IN
TSSOP Packages
Dual, 2x 100mA, Low Noise Micropower,
LDO with Independent Inputs
V : 1.8V to 20V, V
= 1.22V, V = 0.30V, I = 25μA, I = < 1μA,
DO Q SD
, DFN and MS10 Packages
IN
Low Noise < 20μV
RMS
Dual, 100mA/500mA, Low Noise
Micropower, LDO with Independent Inputs Low Noise < 20μV
V : 1.8V to 20V, V
= 1.22V, V = 0.30V, I = 30μA, I = < 1μA,
, DFN and TSSOP Packages
IN
OUT(MIN) DO Q SD
RMS
ThinSOT is a trademark of Linear Technology Corporation
1965f
LT 0807 • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
16
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© LINEAR TECHNOLOGY CORPORATION 2007
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