LTC3407A LINER [Linear Technology], LTC3407A Datasheet - Page 14

• Manufacturer Part Number: LTC3407A
• Description: Dual Synchronous 600mA, 1.5MHz Step-Down DC/DC Regulator
• Manufacturer: LINER [Linear Technology]

TYPICAL APPLICATIONS
LTC3407A
14
V
OUT2
AT 600mA
R6
4.7MΩ
V
= 2.5V
C4
680pF
OUT2
10μF
AT 600mA
V
C3
IN
= 1.8V
V
C
= 2.5V TO 5.5V
C1, C2, C3: TAIYO YUDEN JMK316BJ106MD
L1, L2: TDK VLF3010AT-2R2M1R0
10μF
IN
OUT2
TO 5.5V
= 2.5V
Figure 4. Low Ripple Buck Regulators Using Ceramic Capacitors
C
IN
, C
OUT1
C5, 22pF
887k
R4
, C
C2, 22pF
C1
10μF
OUT2:
887k
Figure 3. 1mm Height Core Supply
2.2μH
R4
L2
R3
280k
TAIYO YUDEN JMK316BJ106ML
C
10μF
IN
4.7μH
L2
R3
442k
RUN/SS2
MODE/SYNC
SW2
V
FB2
RUN/SS2
SW2
V
MODE/SYNC
FB2
LTC3407A
GND
LTC3407A
V
IN
V
IN
RUN/SS1
RUN/SS1
GND
SW1
POR
SW1
V
POR
V
FB1
FB1
L1, L2: TDK VLF3010AT-4R7MR70
4.7μH
2.2μH
L1
L1
R7
100k
R1
604k
R5
100k
R1
301k
C1, 22pF
C4, 22pF
POWER-ON
RESET
POWER-ON
RESET
604k
604k
R2
R2
C
10μF
C2
10μF
V
AT 600mA
V
AT 600mA
OUT1
OUT1
OUT1
= 1.2V
3407A TA03
= 1.8V
680pF
4.7MΩ
C3
R5
3407A TA05
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
1
1
2.5V
V
Burst Mode OPERATION
NO LOAD ON OTHER CHANNEL
V
Burst Mode OPERATION
NO LOAD ON OTHER CHANNEL
Effi ciency vs Load Current
Effi ciency vs Load Current
IN
1.8V
IN
= 3.3V
= 3.3V
LOAD CURRENT (mA)
LOAD CURRENT (mA)
10
10
1.8V
2.5V
100
100
3407A TA04
3407A TA06
3407afa
1000
1000