Datasheet

8
LT3463/LT3463A
3463f
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
●
www.linear.com
 LINEAR TECHNOLOGY CORPORATION 2003
LT/TP 0404 1K • PRINTED IN USA
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LT1615/LT1615-1 300mA/80mA (I
SW
), High Efficiency Step-Up DC/DC Converters V
IN
: 1V to 15V, V
OUT(MAX)
: 34V, I
Q
: 20µA, I
SD
: <1µA,
ThinSOT Package
LT1944 Dual Output 350mA (I
SW
), Constant Off-Time, V
IN
: 1.2V to 15V, V
OUT(MAX)
: 34V, I
Q
: 20µA, I
SD
: <1µA,
High Efficiency Step-Up DC/DC Converter MS Package
LT1944-1 Dual Output 150mA (I
SW
), Constant Off-Time, V
IN
: 1.2V to 15V, V
OUT(MAX)
: 34V, I
Q
: 20µA, I
SD
: <1µA,
High Efficiency Step-Up DC/DC Converter MS Package
LT1945 Dual Output, Pos/Neg, 350mA (I
SW
), V
IN
: 1.2V to 15V, V
OUT(MAX)
: ±34V, I
Q
: 20µA, I
SD
: <1µA,
Constant Off-Time, High Efficiency Step-Up DC/DC Converter MS Package
LT3464 85mA (I
SW
), High Efficiency Step-Up DC/DC Converter V
IN
: 2.3V to 10V, V
OUT(MAX)
: 34V, I
Q
: 25µA, I
SD
: <1µA,
with Integrated Schottky and PNP Disconnect ThinSOT Package
CCD Bias Supply
U
TYPICAL APPLICATIO
V
IN
V
REF
V
OUT1
V
OUT1
15V
10mA
V
OUT2
–8V
50mA
SW1
FB2
LT3463A
8
11
L1
10µH
SHDN2
C2
2.2µF
V
IN
2.7V
TO 5V
3463 TA01a
GND
4
SW2
5
321
D2
C4
1µF
D1
C1
4.7µF
FB1
9
6
7
10
SHDN1
R2
1M
R4
1M
C5
10pF
C1: TAIYO YUDEN JMK212BJ475MG
C2: TAIYO YUDEN EMK316BJ225ML
C3: TAIYO YUDEN LMK316BJ475ML
C4: TAIYO YUDEN EMK212BJ105MG
C5: AVX 06035A100KAT2A
D1: DIODES, INC B0540W
L1, L2: MURATA LQH32CN100K53
R3
154k
R1
90.9k
C3
4.7µF
L2
10µH
Typical Waveforms for 15V Output Typical Waveforms for –8V Output
V
SW1
10V/DIV
V
OUT1
AC-COUPLED
50mV/DIV
I
L1
200mA/DIV
2µs/DIV
3463 TA04
V
SW2
5V/DIV
V
OUT2
AC-COUPLED
50mV/DIV
I
L2
200mA/DIV
2µs/DIV
3463 TA05