LT3467/LT3467A
18
3467afe
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2003
LT 0410 REV E • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATIONS
PART NUMBER DESCRIPTION COMMENTS
LT1615/LT1615-1 300mA/80mA (I
SW
), High Effi ciency Step-Up DC/DC Converter V
IN
: 1V to 15V, V
OUT(MAX)
= 34V, I
Q
= 20μA, I
SD
< 1μA,
ThinSOT Package
LT1618 1.5A (I
SW
), 1.25MHz, High Effi ciency Step-Up DC/DC Converter 90% Effi ciency, V
IN
: 1.6V to 18V, V
OUT(MAX)
= 35V, I
Q
= 1.8mA,
I
SD
< 1μA, MS Package
LTC1700 No R
SENSE
™, 530kHz, Synchronous Step-Up DC/DC Controller 95% Effi ciency, V
IN
: 0.9V to 5V, I
Q
= 200μA, I
SD
< 10μA,
MS Package
LTC1871 Wide Input Range, 1MHz, No R
SENSE
Current Mode Boost,
Flyback and SEPIC Controller
92% Effi ciency, V
IN
: 2.5V to 36V, I
Q
= 250μA, I
SD
< 10μA,
MS Package
LT1930/LT1930A 1A (I
SW
), 1.2MHz/2.2MHz, High Effi ciency Step-Up
DC/DC Converter
High Effi ciency, V
IN
: 2.6V to 16V, V
OUT(MAX)
= 34V,
I
Q
= 4.2mA/5.5mA, I
SD
< 1μA, ThinSOT Package
LT1946/LT1946A 1.5A (I
SW
), 1.2MHz/2.7MHz, High Effi ciency Step-Up
DC/DC Converter with Soft-Start
High Effi ciency, V
IN
: 2.45V to 16V, V
OUT(MAX)
= 34V, I
Q
= 3.2mA,
I
SD
< 1μA, MS8 Package
LT1961 1.5A (I
SW
), 1.25MHz, High Effi ciency Step-Up DC/DC Converter 90% Effi ciency, V
IN
: 3V to 25V, V
OUT(MAX)
= 35V, I
Q
= 0.9mA,
I
SD
< 6μA, MS8E Package
LTC3400/
LTC3400B
600mA (I
SW
), 1.2MHz, Synchronous Step-Up DC/DC Converter 92% Effi ciency, V
IN
: 0.85V to 5V, V
OUT(MAX)
= 5V,
I
Q
= 19μA/300μA, I
SD
< 1μA, ThinSOT Package
LTC3401 1A (I
SW
), 3MHz, Synchronous Step-Up DC/DC Converter 97% Effi ciency, V
IN
: 0.5V to 5V, V
OUT(MAX)
= 5.5V, I
Q
= 38μA,
I
SD
< 1μA, MS Package
LTC3402 2A (I
SW
), 3MHz, Synchronous Step-Up DC/DC Converter 97% Effi ciency, V
IN
: 0.5V to 5V, V
OUT(MAX)
= 5.5V, I
Q
= 38μA,
I
SD
< 1μA, MS 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
No R
SENSE
is a trademark of Linear Technology Corporation.
GND
V
IN
SW
SS FB
V
IN
5V
D1
L1
4.7μH
R1
115k
LT3467
3467 F08a
C2
10μF
C4*
22pF
C1
2.2μF
C3
0.047μF
R2
13.3k
V
OUT
12V
270mA
C1: X5R OR X7R, 6.3V
C2: X5R OR X7R, 16V
D1: PHILIPS PMEG 2010
L1: SUMIDA CR43-4R7
*OPTIONAL
SHDNSHDN
I
OUT
(mA)
50
EFFICIENCY (%)
100 250200150
300
350
3467 F08b
90
85
80
75
70
65
60
55
50
Effi ciency
Figure 8. 5V to 12V, 270mA Step-Up Converter
Effi ciency
I
OUT
(mA)
EFFICIENCY (%)
200
95
90
85
80
75
70
65
60
55
50
3467 F09b
10050 150 250 300
GND
V
IN
SW
SHDN
FB
V
IN
5V
D1
L1
3.3μH
R1
115k
LT3467A
3467 F09a
C2
10μF
C4
12pF
C1
4.7μF
R2
13.3k
V
OUT
12V
260mA
C1: X5R OR X7R, 6.3V
C2: X5R OR X7R, 16V
D1: PHILIPS PMEG 2010
L1: SUMIDA CDRH4D18-3R3
SS
C3
0.047μF
OFF ON
Figure 9. 5V to 12V, 260mA Step-Up Converter
