Datasheet

LTC3407-2
13
sn34072 34072fs
Low Ripple Buck Regulators Using Ceramic Capacitors
RUN2 V
IN
V
IN
= 2.5V
TO 5.5V
V
OUT2
= 1.8V
AT 800mA
V
OUT1
= 1.2V
AT 800mA
RUN1
POR
SW1
V
FB1
GND
V
FB2
SW2
MODE/SYNC
LTC3407-2
C1
10µF
R5
100k
POWER-ON
RESET
C4, 22pFC5, 22pF
L1
4.7µH
L2
4.7µH
R4
887k
R2
604k
R1
604k
R3
442k
C3
10µF
C2
10µF
3407 TA03
C1, C2, C3: TAIYO YUDEN JMK316BJ106ML L1, L2: SUMIDA CDRH2D18/HP-4R7NC
LOAD CURRENT (mA)
EFFICIENCY (%)
10 100 1000
3407 TA03b
100
95
90
85
80
75
70
65
60
55
50
1.8V
1.2V
V
IN
= 3.3V
PULSE SKIP MODE
NO LOAD ON OTHER CHANNEL
Efficiency vs Load Current
TYPICAL APPLICATIO S
U