LTC3542_15 Datasheet, PDF (16/16 Pages) Linear Technology – 500mA, 2.25MHz Synchronous Step-Down DC/DC Converter

LTC3542
TYPICAL APPLICATION
Using Low Profile Components, <1mm Height
V_IN
2.7V TO 5.5V
C_IN**
10mF
CER
2
V_IN
4
SW
2.2mH*
22pF
V_OUT
1.5V
500mA
LTC3542
6
1
RUN V_FB
5
MODE/SYNC
150k
75k
C_OUT**
10mF
GND
CER
3542 TA02a
3
*TDK VLF3010AT-2R2MIR0
**TDK C2012X5R0J106M
Efficiency vs Output Current
100
90
80
70
60
50
40
30
20
10
0
0.1
V_IN = 3.6V
V_OUT = 1.5V
Burst Mode OPERATION
1
10
100
OUTPUT CURRENT (mA)
1000
3542 TA02b
RELATED PARTS
PART NUMBER
LTC3405/LTC3405B
LTC3406/LTC3406B
LTC3407/LTC3407-2
LTC3409
LTC3410/LTC3410B
LTC3411
LTC3548
LTC3561
DESCRIPTION
COMMENTS
300mA I_OUT, 1.5MHz, Synchronous Step-Down DC/DC
Converter
600mA I_OUT, 1.5MHz, Synchronous Step-Down DC/DC
Converter
Dual 600mA/800mA I_OUT, 1.5MHz/2.25MHz, Synchronous
Step-Down DC/DC Converter
600mA I_OUT, 1.7MHz/2.6MHZ, Synchronous Step-Down
DC/DC Converter
300mA I_OUT, 2.25MHz, Synchronous Step-Down DC/DC
Converter
1.25A I_OUT, 4MHz, Synchronous Step-Down DC/DC
Converter
Dual 400mA/800mA I_OUT, 2.25MHz, Synchronous
Step-Down DC/DC Converter
1A I_OUT, 4MHz Synchronous Step-Down DC/DC Converter
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 0.8V, I_Q = 20μA,
I_SD < 1μA, ThinSOT Package
96% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 0.6V, I_Q = 20μA,
I_SD < 1μA, ThinSOT Package
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 0.6V, I_Q = 40μA,
I_SD < 1μA, MS10E, DFN Packages
96% Efficiency, V_IN: 1.6V to 5.5V, V_OUT(MIN) = 0.6V, I_Q = 65μA,
I_SD < 1μA, DFN Package
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 0.8V, I_Q = 26μA,
I_SD < 1μA, SC70 Package
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 0.8V, I_Q = 60μA,
I_SD < 1μA, MS10, DFN Packages
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT(MIN) = 0.6V, I_Q = 40μA,
I_SD < 1μA, MS10, DFN Packages
95% Efficiency, V_IN: 2.6V to 5.5V, V_OUT(MIN) = 0.8V, I_Q = 240μA,
I_SD < 1μA, 3mm × 3mm DFN Package
16 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^● FAX: [phone] ^● www.linear.com
3542fa
LT 0907 REV A • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2006