LTC3458L Linear Technology, LTC3458L Datasheet - Page 14

• Manufacturer Part Number: LTC3458L
• Description: 1.7A/ 1.5MHz Synchronous Step-Up DC/DC Converter with Output Disconnect
• Manufacturer: Linear Technology

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