Datasheet

LT3471
16
3471fb
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
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FAX: [phone]
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www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2004
LT 1008 REV B • PRINTED IN USA
TYPICAL APPLICATIONS
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LT1611 550mA (I
SW
), 1.4MHz, High Effi ciency Micropower Inverting
DC/DC Converter
V
IN
: 1.1V to 10V, V
OUT(MAX)
= –34V, I
Q
= 3mA, I
SD
< 1μA,
ThinSOT Package
LT1613 550mA (I
SW
), 1.4MHz, High Effi ciency Step-Up
DC/DC Converter
V
IN
: 0.9V to 10V, V
OUT(MAX)
= 34V, I
Q
= 3mA, I
SD
< 1μA,
ThinSOT Package
LT1614 750mA (I
SW
), 600kHz, High Effi ciency Micropower Inverting
DC/DC Converter
V
IN
: 1V to 12V, V
OUT(MAX)
= –24V, I
Q
= 1mA, I
SD
< 10μA,
MS8, S8 Packages
LT1615/LT1615-1 300mA/80mA (I
SW
), High Effi ciency Step-Up
DC/DC Converters
V
IN
= 1V to 15V, V
OUT(MAX)
= 34V, I
Q
= 20μA, I
SD
< 1μA,
ThinSOT Package
LT1617/LT1617-1 350mA/100mA (I
SW
), High Effi ciency Micropower Inverting
DC/DC Converters
V
IN
= 1.2V to 15V, V
OUT(MAX)
= –34V, I
Q
= 20μA, I
SD
< 1μA,
ThinSOT Package
LT1930/LT1930A 1A (I
SW
), 1.2MHz/2.2MHz, High Effi ciency Step-Up
DC/DC Converters
V
IN
: 2.6V to 16V, V
OUT(MAX)
= 34V, I
Q
= 4.2mA/5.5mA,
I
SD
< 1μA, ThinSOT Package
LT1931/LT1931A 1A (I
SW
), 1.2MHz/2.2MHz High Effi ciency Micropower Inverting
DC/DC Converters
V
IN
= 2.6V to 16V, V
OUT(MAX)
= –34V, I
Q
= 5.8mA, I
SD
< 1μA,
ThinSOT Package
LT1943 (Quad) Quad Boost, 2.6A Buck, 2.6A Boost, 0.3A Boost, 0.4A Inverter
1.2MHz TFT DC/DC Converter
V
IN
= 4.5V to 22V, V
OUT(MAX)
= 40V, I
Q
= 10μA, I
SD
< 35μA,
TSSOP28E Package
LT1945 (Dual) Dual Output, Boost/Inverter, 350mA (I
SW
), Constant Off-Time,
High Effi ciency Step-Up DC/DC Converter
V
IN
= 1.2V to 15V, V
OUT(MAX)
= ±34V, I
Q
= 40μA, I
SD
< 1μA,
10-Lead MS Package
LT1946/LT1946A 1.5A (I
SW
), 1.2MHz/2.7MHz, High Effi ciency Step-Up
DC/DC Converters
V
IN
: 2.45V to 16V, V
OUT(MAX)
= 34V, I
Q
= 3.2mA, I
SD
< 1μA,
MS8 Package
LT3436 3A (I
SW
), 1MHz, 34V Step-Up DC/DC Converter V
IN
: 3V to 25V, V
OUT(MAX)
= 34V, I
Q
= 0.9mA, I
SD
< 6μA,
TSSOP16E Package
LT3462/LT3462A 300mA (I
SW
), 1.2MHz/2.7MHz, High Effi ciency Inverting
DC/DC Converters with Integrated Schottkys
V
IN
= 2.5V to 16V, V
OUT(MAX)
= –38V, I
Q
= 2.9mA, I
SD
< 1μA,
ThinSOT Package
LT3463/LT3463A Dual Output, Boost/Inverter, 250mA (I
SW
), Constant Off-Time,
High Effi ciency Step-Up DC/DC Converters with Integrated Schottkys
V
IN
= 2.3V to 15V, V
OUT(MAX)
= ±40V, I
Q
= 40μA, I
SD
< 1μA,
DFN Package
LT3464 85mA (I
SW
), High Effi ciency Step-Up DC/DC Converter with
Integrated Schottky and PNP Disconnect
V
IN
= 2.3V to 10V, V
OUT(MAX)
= 34V, I
Q
= 25μA, I
SD
< 1μA,
ThinSOT Package
5V to ±12V Dual Supply Boost/Inverting Converter
4.7k
4.7k
3471 TA06
0.33μF
0.33μF
C1
4.7μF
V
IN
5V
SHDN/SS1 FB1N
9
8
7
SW1
SW2
LT3471
L2
10μH
C5
1μF
GND
FB1P
V
IN
FB2N
FB2P
V
REF
C2
0.1μF
C3
4.7μF
C6
56pF
V
OUT1
12V
320mA
V
OUT2
–12V
200mA
C1, C2: X5R OR X7R 6.3V
C3, C4: X5R OR X7R 16V
C5: X5R OR X7R 25V
D1, D2: ON SEMICONDUCTOR MBRM-120
L1: SUMIDA CR43-10
L2, L3: SUMIDA CLS63-10
R1
54.9k
R2
4.99k
R3
15k
R4
182k
SHDN/SS2
V
IN
10
1
2
3
4
5
11 6
•
V
IN
C4
4.7μF
C7
56pF
L1
10μH
D1
D2
L3
10μH
•
CONTROL 1
OV
1.8V
CONTROL 2
OV
1.8V
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