LTC3407A-2 Linear Technology, LTC3407A-2 Datasheet - Page 16

• Manufacturer Part Number: LTC3407A-2
• Description: Dual Synchronous 800mA2.25MHz Step-Down DC/DC Regulator
• Manufacturer: Linear Technology

TYPICAL APPLICATIO
PART NUMBER
LTC3405/LTC3405A
LTC3406/LTC3406B
LTC3407/LTC3407-2
LTC3407-3/LTC3407-4/ Dual Synchronous Step-Down DC/DC Converter
LTC3407A
LTC3410/LTC3410B
LTC3411
LTC3412/LTC3412A
LTC3414
LTC3440/LTC3441
LTC3548/
LTC3548-1/LTC3548-2
LTC3407A-2
RELATED PARTS
16
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
90
80
70
60
50
40
30
20
10
0
1
Efficiency vs Load Current
V
Burst Mode OPERATION
NO LOAD ON OTHER CHANNEL
DESCRIPTION
300mA (I
Synchronous Step-Down DC/DC Converter
600mA (I
Synchronous Step-Down DC/DC Converter
600mA/800mA (I
300mA (I
Synchronous Step-Down DC/DC Converter in SC70
1.25A (I
Synchronous Step-Down DC/DC Converter
2.5A (I
Synchronous Step-Down DC/DC Converter
4A (I
Synchronous Step-Down DC/DC Converter
600mA/1.2A (I
Synchronous Buck-Boost DC/DC Converter
400mA/800mA (I
Dual Synchronous Step-Down DC/DC Converter
OUT
●
2mm Height Lithium-Ion Single Inductor Buck-Boost Regulator and a Buck Regulator
= 3.3V
FAX: [phone]
V
OUT
OUT2
AT 200mA
OUT
LOAD CURRENT (mA)
OUT
), 4MHz,
10
= 3.3V
OUT
OUT
OUT
), 4MHz,
), 4MHz,
), 2.25MHz,
), 1.5MHz,
), 1.5MHz,
+
OUT
C1, C2, C3: TAIYO YUDEN JMK316BJ106ML
C6: SANYO 6TPB47M
D1: PHILIPS PMEG2010
OUT
OUT
), 2MHz/1MHz,
C6
47μF
U
100
2.8V
), 1.5MHz/2.25MHz,
), 2.25MHz,
3.6V
3407A2 TA05a
●
www.linear.com
C3
10μF
4.2V
D1
V
1000
IN
TO 4.2V
M1
= 2.8V
887k
10μH
R4
L2
196k
C1
10μF
R3
RUN/SS2
MODE/SYNC
SW2
V
FB2
LTC3407A-2
GND
L1: MURATA LQH32CN2R2M33
L2: TOKO A914BYW-100M (D52LC SERIES)
M1: SILICONIX Si2302
V
IN
COMMENTS
96% Efficiency, V
I
96% Efficiency, V
I
96% Efficiency, V
I
96% Efficiency, V
I
95% Efficiency, V
I
95% Efficiency, V
I
95% Efficiency, V
I
95% Efficiency, V
I
95% Efficiency, V
I
SD
SD
SD
SD
SD
SD
SD
SD
SD
RUN/SS1
<1μA, ThinSOT Package
<1μA, ThinSOT Package
<1μA, MS10E Package, DFN Package
<1μA, SC70 Package
<1μA, MSOP-10 Package
<1μA, TSSOP-16E Package
<1μA, TSSOP-28E Package
<1μA, MSOP-10 Package/DFN Package
<1μA, MS10E Package/DFN Package
SW1
POR
V
FB1
2.2μH
100
R5
100k
R1
442k
90
80
70
60
50
40
30
20
10
L1
0
C4, 22pF
1
POWER-ON
RESET
Efficiency vs Load Current
IN
IN
IN
IN
IN
IN
IN
IN
IN
2.8V
887k
V
Burst Mode OPERATION
NO LOAD ON OTHER CHANNEL
R2
: 2.5V to 5.5V, V
: 2.5V to 5.5V, V
: 2.5V to 5.5V, V
: 2.5V to 5.5V, V
: 2.5V to 5.5V, V
: 2.5V to 5.5V, V
: 2.25V to 5.5V, V
: 2.5V to 5.5V, V
: 2.5V to 5.5V, V
OUT
= 1.8V
LOAD CURRENT (mA)
10
4.2V
C2
10μF
V
AT 800mA
© LINEAR TECHNOLOGY CORPORATION 2007
OUT1
3407A TA05
= 1.8V
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
OUT(MIN)
100
OUT(MIN)
www.DataSheet4U.com
3.6V
3407A2 TA05b
= 0.8V, I
= 0.6V, I
= 0.6V, I
= 0.8V, I
= 0.8V, I
= 0.8V, I
= 2.5V, I
= 0.6V, I
= 0.8V, I
1000
LT 0907 • PRINTED IN USA
Q
Q
Q
Q
Q
Q
Q
Q
Q
= 20μA,
= 20μA,
= 40μA,
= 26μA,
= 60μA,
= 60μA,
= 25μA,
= 40μA,
= 64μA,
3407a2f