LTC3542
16
3542fa
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 0907 REV A • PRINTED IN USA
PART NUMBER DESCRIPTION COMMENTS
LTC3405/LTC3405B 300mA I
OUT
, 1.5MHz, Synchronous Step-Down DC/DC
Converter
95% Effi ciency, V
IN
: 2.5V to 5.5V, V
OUT(MIN)
= 0.8V, I
Q
= 20μA,
I
SD
< 1μA, ThinSOT Package
LTC3406/LTC3406B 600mA I
OUT
, 1.5MHz, Synchronous Step-Down DC/DC
Converter
96% Effi ciency, V
IN
: 2.5V to 5.5V, V
OUT(MIN)
= 0.6V, I
Q
= 20μA,
I
SD
< 1μA, ThinSOT Package
LTC3407/LTC3407-2 Dual 600mA/800mA I
OUT
, 1.5MHz/2.25MHz, Synchronous
Step-Down DC/DC Converter
95% Effi ciency, V
IN
: 2.5V to 5.5V, V
OUT(MIN)
= 0.6V, I
Q
= 40μA,
I
SD
< 1μA, MS10E, DFN Packages
LTC3409 600mA I
OUT
, 1.7MHz/2.6MHZ, Synchronous Step-Down
DC/DC Converter
96% Effi ciency, V
IN
: 1.6V to 5.5V, V
OUT(MIN)
= 0.6V, I
Q
= 65μA,
I
SD
< 1μA, DFN Package
LTC3410/LTC3410B 300mA I
OUT
, 2.25MHz, Synchronous Step-Down DC/DC
Converter
95% Effi ciency, V
IN
: 2.5V to 5.5V, V
OUT(MIN)
= 0.8V, I
Q
= 26μA,
I
SD
< 1μA, SC70 Package
LTC3411 1.25A I
OUT
, 4MHz, Synchronous Step-Down DC/DC
Converter
95% Effi ciency, V
IN
: 2.5V to 5.5V, V
OUT(MIN)
= 0.8V, I
Q
= 60μA,
I
SD
< 1μA, MS10, DFN Packages
LTC3548 Dual 400mA/800mA I
OUT
, 2.25MHz, Synchronous
Step-Down DC/DC Converter
95% Effi ciency, V
IN
: 2.5V to 5.5V, V
OUT(MIN)
= 0.6V, I
Q
= 40μA,
I
SD
< 1μA, MS10, DFN Packages
LTC3561 1A I
OUT
, 4MHz Synchronous Step-Down DC/DC Converter 95% Effi ciency, V
IN
: 2.6V to 5.5V, V
OUT(MIN)
= 0.8V, I
Q
= 240μA,
I
SD
< 1μA, 3mm × 3mm DFN Package
Using Low Profi le Components, <1mm Height
V
IN
LTC3542
RUN
75k
*TDK VLF3010AT-2R2MIR0
**TDK C2012X5R0J106M
3542 TA02a
150k
22pF
2.2 H*
C
IN
**
10 F
CER
C
OUT
**
10 F
CER
SW
2
6
4
1
3
5
V
IN
2.7V TO 5.5V
V
OUT
1.5V
500mA
V
FB
MODE/SYNC
GND
Effi ciency vs Output Current
OUTPUT CURRENT (mA)
30
EFFICIENCY (%)
90
100
20
10
80
50
70
60
40
0.1 10 100 1000
3542 TA02b
0
1
V
IN
= 3.6V
V
OUT
= 1.5V
Burst Mode OPERATION
TYPICAL APPLICATION
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