Datasheet

LTC3458L
14
3458lfa
TYPICAL APPLICATIO S
U
V
IN
GND/PGND
SHDN
SYNC
R
T
I
LIM
SW
V
OUT
FB
COMP
SS
BURST
LTC3458L
Li-Ion
3.1V to 4.2V
2.2μF
COILCRAFT
10μH
MSS7341
ON OFF
274k 84.5k 133k
324k
33k
0.01μF
0.01μF
560pF
10pF
10pF
1M
22μF
X5R
V
OUT
5V
750mA
3458L TA03a
V
IN
GND/PGND
SHDN
SYNC
R
T
I
LIM
SW
V
OUT
FB
COMP
SS
BURST
LTC3458L
2 ALKALINE
1.8V to 3.3V
2.2μF
COILCRAFT
10μH
MSS7341
ON OFF
274k 84.5k 133k
324k
33k
0.01μF
0.01μF
560pF
10pF
1M
22μF
X5R
V
OUT
5V
250mA
3458L TA04a
10pF
Lithium-Ion to 5V, 750mA at 750kHz
Two Cell to 5V
OUT
, 250mA at 750kHz
LOAD CURRENT (mA)
EFFICIENCY (%)
100
95
90
85
80
75
70
0.1 10 100 1000
3458L TA03b
1
4.2V
IN
3.6V
IN
3.1V
IN
LOAD CURRENT (mA)
EFFICIENCY (%)
100
95
90
85
80
75
70
0.1 10 100 1000
3458L TA04b
1
3.3V
IN
2.5V
IN
1.8V
IN
Li-Ion to 5V
OUT
Two Alkaline to 5V
OUT