LT3487
16
3487f
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2006
LT 0406 • PRINTED IN USA
PART NUMBER DESCRIPTION COMMENTS
LT1944/LT1944-1 Dual Output 350mA/100mA I
SW
, Constant Off-Time,
High Effi ciency DC/DC Converter
V
IN
: 1.2V to 15V, V
OUT(MAX)
= 34V, I
Q
= 20µA, I
SD
< 1µA, 10-Lead
MS Package
LT1945 Dual Output, Boost/Inverter, 350mA I
SW
, Constant Off-Time,
High Effi ciency DC/DC Converter
V
IN
: 1.2V to 15V, V
OUT(MAX)
= ±34V, I
Q
= 40µA, I
SD
< 1µA, 10-Lead
MS Package
LT1947 Triple Output, 3MHz, High Effi ciency DC/DC Converter V
IN
: 2.6V to 8V, V
OUT(MAX)
= ±34V, I
Q
= 9.5mA, I
SD
< 1µA, 10-Lead
MS Package
LTC
®
3450 Triple Output, 550kHz, High Effi ciency DC/DC Converter V
IN
: 1.4V to 4.6V, V
OUT(MAX)
= ±15V, I
Q
= 75µA, I
SD
< 2µA,
DFN Package
LT3463/LT3463A Dual Output, Boost/Inverter, 250mA I
SW
, Constant Off-Time,
High Effi ciency DC/DC Converter with Integrated Schottkys
V
IN
: 2.2V to 16V, V
OUT(MAX)
= ±40V, I
Q
= 2.8mA, I
SD
< 1µA,
DFN Package
LT3471 Dual Output, Boost/Inverter, 1.3A I
SW
, 1.2MHz, High
Effi ciency DC/DC Converter
V
IN
: 2.4V to 16V, V
OUT(MAX)
= ±40V, I
Q
= 2.5mA, I
SD
< 1µA,
DFN Package
LT3472/LT3472A Dual Output, Boost/Inverter, 350mA/400mA I
SW
, 1.2MHz,
High Effi ciency DC/DC Converter with Integrated Schottkys
V
IN
: 2.3V to 15V, V
OUT(MAX)
= ±40V, I
Q
= 40µA, I
SD
< 1µA,
DFN Package
RELATED PARTS
TYPICAL APPLICATIO
U
+24V and –16V LCD Bias
SWN
L2
22µH
L1
15µH
V
IN
CAP
R1
931k
FBP
V
POS
V
BAT
LT3487
GND
SWP
DN
L3
22µH
R2 640k
C7 33pF
FBN
RUN/SSRUN/SS
V
NEG
–16V
26mA
C6
100nF
C4
10µF
C1: TAIYO YUDEN EMK212BJ105MG
C2: TAIYO YUDEN TMK212BJ225MG
C3: TAIYO YUDEN TMK325BJ226MM
C4: TAIYO YUDEN TMK316BJ106KL-T
L1: SUMIDA CDRH2D18/HP-150NC
L2, L3: TOKO D53LC-A915AY-220M
3487 TA05
C5
100nF
C8
15pF
V
POS
24V
24mA
C1
1µF
C2
2.2µF
C3
22µF
V
IN
3V TO 6V
