LT3495 Ver la hoja de datos (PDF) - Linear Technology
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LT3495 Datasheet PDF : 16 Pages
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TYPICAL APPLICATIONS
ONE Li-Ion CELL
C1
4.7μF
L1
10μH
D1
SW CAP
VCC VOUT
LT3495
TURN ON/OFF
VOUT DIMMING
SHDN FB
CTRL GND
C1: 4.7μF, 6.3V, X5R, 0603
C2: 2.2μF, 25V, X5R, 0805
C3: 1μF, 25V, X5R, 0603
D1: DIODES INC. B0540WS-7
L1: COILCRAFT LPS4018-103MLB
C2
2.2μF
R1
909k
OUTPUT 16V
70mA
C3
1μF
3495 F07a
Figure 7. One Li-Ion Cell Input Boost Converter with the LT3495
LT3495/LT3495B/
LT3495-1/LT3495B-1
Efficiency vs Load Current
90
400
VIN = 3.6V
LOAD FROM CAP
80
LOAD FROM VOUT 320
70
240
60
160
50
80
40
0.1
1
10
LOAD CURRENT (mA)
0
100
3495 F07b
ONE Li-Ion CELL
C1
4.7μF
L1
6.8μH
D1
SW CAP
VCC VOUT
LT3495B
C2
2.2μF
R1
909k
OUTPUT 16V
70mA
C3
1μF
TURN ON/OFF
VOUT DIMMING
SHDN FB
CTRL GND
C1: 4.7μF, 6.3V, X5R, 0603
C2: 2.2μF, 25V, X5R, 0805
C3: 1μF, 25V, X5R, 0603
D1: DIODES INC. B0540WS-7
L1: SUMIDA CR32-6R8
3495 F08a
Figure 8. One Li-Ion Cell Input Boost Converter with the LT3495B
Efficiency vs Load Current
90
VIN = 3.6V
80
400
LOAD FROM CAP
320
LOAD FROM VOUT
70
240
60
160
50
80
40
0.1
1
10
LOAD CURRENT (mA)
0
100
3495 F08b
LT3495/LT3495B Maximum Output Current vs Output Voltage
R1 VALUE REQUIRED
MAXIMUM OUTPUT
VOUT
(MΩ)
CURRENT AT 3V INPUT (mA)
40
2.37
26
35
2.05
31
30
1.78
37
25
1.47
43
20
1.15
57
15
0.845
74
10
0.536
120
5
0.232
250
3495b1b1f
13
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