lt3467aes67 Linear Technology Corporation, lt3467aes67 Datasheet - Page 14

• Manufacturer Part Number: lt3467aes67
• Description: 1.1a Step-up Dc/dc Converter With Integrated Soft-start
• Manufacturer: Linear Technology Corporation

LT3467/LT3467A
TYPICAL APPLICATIO S
14
TO 4.2V
TO 3.3V
3.3V
4.7μF
2.6V
4.7μF
2.6V
4.7μF
V
V
V
IN
IN
IN
C1
C1
C1
C1: X5R OR X7R, 6.3V
C2: X5R OR X7R, 16V
D1: PHILIPS PMEG 2010
L1: SUMIDA CMD4D13-6R8MC
C1, C2: X5R OR X7R, 6.3V
D1: PHILIPS PMEG 2010
L1: FDK MIPW3226D0R9M
*C2 CAN BE 10μF IN A 1210 OR LARGER PACKAGE WITH
C1, C2: X5R OR X7R, 6.3V
D1: PHILIPS PMEG 2010
L1: FDK MIP3226D1R5M
0.047μF
0.047μF
THE ADDITION OF C4, OTHERWISE C4 IS OPTIONAL
0.047μF
OFF ON
OFF ON
OFF ON
Single Li-Ion Cell to 5V Boost Converter
3.3V to 15V, 135mA Step-Up Converter
C3
C3
C3
2.6V – 3.3V to 5V Boost Converter
SS
SS
SS
SHDN
SHDN
SHDN
V
V
V
IN
IN
IN
LT3467A
LT3467A
LT3467A
6.8μH
0.9μH
1.5μH
GND
GND
GND
L1
L1
L1
SW
SW
SW
FB
FB
FB
U
D1
16.5k
D1
D1
8.06k
8.06k
R1
R1
R1
R2
1.5k
R2
2.67k
R2
2.67k
C4
68pF
C4*
75pF
C4
56pF
3467 TA11a
3467 TA10a
3467 TA09a
C2
2.2μF
C2*
22μF
C2
10μF
V
15V
135mA
V
5V
600mA AT V
360mA AT V
250mA AT V
V
5V
430mA AT V
270mA AT V
OUT
OUT
OUT
IN
IN
IN
IN
IN
= 4.2V
= 3.3V
= 2.6V
= 3.3V
= 2.6V
95
90
85
80
75
70
65
60
55
50
90
85
80
75
70
65
60
55
50
90
80
70
60
50
40
30
50
50
20
100
100
40
150
150
V
60
IN
200
200
Efficiency
= 2.6V
Efficiency
Efficiency
I
I
I
250
80
250
OUT
V
OUT
OUT
IN
V
IN
= 3.3V
(mA)
(mA)
(mA)
300
300
= 2.6V
100
350
350
120
400
400
V
V
IN
IN
140
= 3.3V
= 4.2V
450
450
3467 TA09b
3467 TA08b
3467 TA10b
500
500
160
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