LT3587
TYPICAL APPLICATION
General Purpose High Voltage Supplies Generator
SUPPLY 3: 25V SUPPLY
WITH SAFETY
CURRENT LIMIT AT 25mA
C4
2.2μF
V
VIN
2.5V TO 6V
L4
10μH
L1
15μH
C6
1μF
D
S3
R
VFB3
1.74M
C1
10μF
D
V
V
CAP3
SW3
V
IN
SW1
CAP1
S1
R
IFB3
6.34k
FB3 OUT3
I
FB3
C
FB1
2.7pF
LT3587
GND
R
FB1
C1: MURATA GRM31CR71E106KA12L
FLT
1M
C2: MURATA GRM21BR71E225KA73L
C3, C5: MURATA GRM033R60J104KE19D
C4: MURATA GRM21BR71E225KA73L
C6: MURATA GRM155R61A105KE15D
C7: MURATA GRM32ER61E226KE15L
FB1
EN/SS1
EN/SS3
V
SW2
FB2
OUT1
SUPPLY 1:
15V, 50mA
C5
100nF
C3
100nF
R
C
C
: MURATA GRM1555C1H2R7BZ01D
: MURATA GRM1555C1H2R2BZ01D
C
FB2
2M
FB1
FB2
C2
2.2μF
FB2
2.2pF
SUPPLY 2:
–16V, 50mA
L2
22μH
L3
22μH
L1: COILCRAFT LPS4018-153
L2, L3: COILCRAFT LPS4018-223
L4: TOKO 1071AS-100M
V
VIN
2.5V TO 6V
C7
22μF
3587 TA05
D
D
S2
S4
D
, D , D , D : IR IR05H40CSPTR
S1 S2 S3 S4
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
= 1.2V, V
LT1944
Dual Output, Boost/Inverter, 350mA I , High Efficiency
Boost-Inverting DC/DC Converter
V
= 15V, V
= 15V, V
= 15V, V
=
=
34V, I = 20, I < 1μA,
Q SD
SW
IN(MIN)
IN(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
MSOP-10 Package
LT1945
Dual Output, Boost/Inverter, 350mA I , High Efficiency
V
= 1.2V, V
34V, I = 20, I < 1μA,
Q SD
SW
IN(MIN)
IN(MAX)
Boost-Inverting DC/DC Converter
MSOP-10 Package
LT3463/LT3463A
Dual Output, Boost/Inverter, 250mA I , Constant Off-
V
= 2.3V, V
= 40V, I = 40μA, I < 1μA,
Q SD
SW
IN(MIN)
IN(MAX)
Time, High Efficiency Step-Up DC/DC Converter with
Integrated Schottkys
3 × 3 DFN-10 Package
LT3466/LT3466-1
LT3471
Dual Constant Current, 2MHz, High Efficiency White LED
Boost Regulator with Integrated Schottky Diode
V
= 2.7V, V
= 24V, V
= 16V, V
= 16V, V
= 16V, V
= 16V, V
= 10V, V
= 40V, I = 5mA, I < 16μA,
Q SD
IN(MIN)
IN(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
OUT(MAX)
3 × 3 DFN-10 Package
Dual Output, Boost/Inverter, 1.3A I , 1.2MHz, High
V
= 2.4V, V
= 40V, I = 2.5mA, I < 1μA,
Q SD
SW
IN(MIN)
IN(MAX)
Efficiency Boost-Inverting DC/DC Converter
3 × 3 DFN-10 Package
LT3472/LT3472A
LT3473/LT3473A
LT3494/LT3494A
LT3497
Dual Output, Boost/Inverter, 400mA I , 1.2MHz, High
V
= 2.2V, V
= 34V I = 2.8mA, I < 1μA,
Q SD
SW
IN(MIN)
IN(MAX)
Efficiency Boost-Inverting DC/DC Converter
3 × 3 DFN-10 Package
40V, 1A, 1.2MHz Micropower Low Noise Boost Converter
with Output Disconnect
V
= 2.2V, V
= 36V, I = 150μA, I < 1μA,
Q SD
IN(MIN)
IN(MAX)
3 × 3 DFN-12 Package
40V, 180mA/350mA Micropower Low Noise Boost
Converter with Output Disconnect
V
= 2.3V, V
= 40V, I = 65μA, I < 1μA,
Q SD
IN(MIN)
IN(MAX)
3 × 2 DFN-8 Package
Dual 2.3MHz, Full Function LED Driver with Integrated
Schottkys and 250:1 True Color PWM Dimming
V
= 2.5V, V
= 32V, I = 6mA, I < 12μA,
Q SD
IN(MIN)
IN(MAX)
2 × 3 DFN-10 Package
LT3580
40V, 2A, 2.5MHz Boost/Inverter DC/DC Converter
V : 2.5V to 32V, V
= 40V, I = 1mA, I < 1μA, MSOP-8E,
OUT(MAX) Q SD
IN
3mm × 3mm DFN-8 Packages
3587fc
LT 0109 REV C • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
24
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© LINEAR TECHNOLOGY CORPORATION 2008
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
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