 English |
|
|
|
|
|
|
|
| LTC3499_15 Datasheet, PDF (13/16 Pages) Linear Technology – 750mA Synchronous Step-Up DC/DC Converters with Reverse-Battery Protection | |||
| |||
| ◁ |
TYPICAL APPLICATIONS
Lithium-Ion to 5V, 350mA
L
4.7µH
VIN +
Li-Ion
3.1V TO 4.2V
CIN
2.2µF
Ã5R
VIN
SW
LTC3499
ON OFF SHDN
VOUT
100k
330pF
VC
FB
SS
GND
0.01µF
1M
324k
VOUT
5V
350mA
COUT
10µF
Ã5R
CIN: TAIYO YUDEN X5R JMK212BJ225MD
COUT: TAIYO YUDEN X5R JMK212BJ106MD
L: COILCRAFT MSS5131-472MLB
3499 F04a
Two Cells to 5V, 175mA
VIN
2 AA CELLS
+
1.8V TO 3.2V
CIN
2.2µF
Ã5R
L
4.7µH
VIN
SW
LTC3499
ON OFF SHDN
VOUT
100k
330pF
VC
FB
SS
GND
0.01µF
1M
324k
VOUT
5V
175mA
COUT
10µF
Ã5R
CIN: TAIYO YUDEN X5R JMK212BJ225MD
COUT: TAIYO YUDEN X5R JMK212BJ106MD
L: COILCRAFT MSS5131-472MLB
3499 F05a
LTC3499/LTC3499B
Lithium-Ion to 5V Efficiency
100
100000
90
EFFICIENCY
80
10000
1000
70
POWER LOSS
100
60
10
50
40
30
0.1
VIN = 4.2V 1
VIN = 3.6V
VIN = 3V
0.1
1
10
100
1000
LOAD CURRENT (mA)
3499 G03
Two Cells to 5V Efficiency
100
100000
90
EFFICIENCY
80
10000
1000
70
100
POWER LOSS
60
10
50
40
0.1
VIN = 3.2V 1
VIN = 2.4V
VIN = 1.8V
0.1
1
10
100
1000
LOAD CURRENT (mA)
3499 G01
3499fc
13
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese