LT1962 Series
U
TYPICAL APPLICATIO S
Adjustable Current Source
Paralleling of Regulators for Higher Output Current
R1
0.1Ω
R5
0.1Ω
3.3V
IN
OUT
FB
300mA
IN
OUT
LT1962-2.5
SHDN FB
GND
+
+
+
V
C1
10µF
C1
10µF
C2
10µF
IN
>2.7V
V
> 3.7V
R1*
1k
LOAD
IN
C4
0.01µF
LT1962-3.3
SHDN
BYP
R2
40.2k
R6
2.2k
R7
100k
LT1004-1.2
GND
R2
0.1Ω
R3
2k
R4
2.2k
IN
OUT
C5
C3
0.33µF
–
LT1962
0.01µF R6
2k
BYP
ADJ
*ADJUST R1 FOR 0mA TO 300mA
CONSTANT CURRENT
1/2 LT1490
1962 TA04
SHDN
SHDN
+
GND
R7
C2
1µF
1.21k
R3
2.2k
R4
2.2k
8
3
2
R5
10k
+
1
1/2 LT1490
–
4
1962 TA03
C3
0.01µF
RELATED PARTS
PART NUMBER
LT1120
LT1121
LT1129
LT1175
LT1521
LT1529
LTC1627
LT1761
LT1762
LT1763
LT1764
LT1772
LT1963
DESCRIPTION
125mA Low Dropout Regulator with 20µA I
COMMENTS
Includes 2.5V Reference and Comparator
Q
150mA Micropower Low Dropout Regulator
700mA Micropower Low Dropout Regulator
500mA Negative Low Dropout Micropower Regulator
30µA I , SOT-223 Package
Q
50µA Quiescent Current
45µA I , 0.26V Dropout Voltage, SOT-223 Package
Q
300mA Low Dropout Micropower Regulator with Shutdown
3A Low Dropout Regulator with 50µA I
15µA I , Reverse Battery Protection
Q
500mV Dropout Voltage
Burst ModeTM Operation, Monolithic, 100% Duty Cycle
Q
High Efficiency Synchronous Step-Down Switching Regulator
100mA, Low Noise, Low Dropout Micropower Regulator in SOT-23
150mA, Low Noise, LDO Micropower Regulator
20µA Quiescent Current, 20µV
25µA Quiescent Current, 20µV
30µA Quiescent Current, 20µV
Noise
Noise
Noise
Noise
RMS
RMS
RMS
500mA, Low Noise, LDO Micropower Regulator
3A, Fast Transient Response Low Dropout Regulator
Constant Frequency Current Mode Step-Down DC/DC Controller
1.5A, Fast Transient Response Low Dropout Regulator
340mV Dropout Voltage, 40µV
RMS
Up to 94% Efficiency, SOT-23 Package, 100% Duty Cycle
SO-8, SOT-223 Packages
Burst Mode is a trademark of Linear Technology Corporation.
sn1962 1962fas LT/TP 0101 2K REV A • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 2000
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
16
●
●
(408)432-1900 FAX:(408)434-0507 www.linear-tech.com
Linear [ Linear ]
