lt3471edd-trpbf Linear Technology Corporation, lt3471edd-trpbf Datasheet - Page 11

• Manufacturer Part Number: lt3471edd-trpbf
• Description: Dual 1.3a, 1.2mhz Boost/inverter In 3mm ? 3mm Dfn
• Manufacturer: Linear Technology Corporation

TYPICAL APPLICATIO S
0V
0V
CONTROL 1
CONTROL 2
2.6V TO 4.2V
Li-Ion
1.8V
1.8V
V
IN
R
SS2
0.33µF
0.33µF
R
4.7k
10µF
SS1
C
C
SS1
SS2
4.7k
C1
V
9
8
7
IN
SHDN/SS1
V
SHDN/SS2
IN
U
2.2µH
GND
V
L1
IN
11
C1, C2: X5R OR X7R 6.3V
C3, C4: X5R OR X7R 10V
C5: XR5 OR X7R 16V
C6: OPTIONAL
LT3471
95
85
80
75
70
60
90
65
55
50
SW1
15µH
L2
0
10
V
V
OUT
OUT
Li-Ion OLED Driver Efficiency
SW2
= –7V
= 7V
100
6
1µF
FB1N
FB1P
FB2N
FB2P
C5
Li-Ion OLED Driver
V
REF
V
IN
200
1
2
3
5
4
= 2.6V
I
OUT
D2
15µH
L3
(mA)
V
V
D1, D2: ON SEMICONDUCTOR MBRM-120
L1: SUMIDA CR43-2R2
L2: SUMIDA CDRH4D18-100
L3: SUMIDA CDRH4D18-150
IN
D1
IN
C2
0.1µF
300
= 3.3V
= 2.6V
V
IN
V
IN
= 4.2V
V
V
0V TO 1V
= 4.2V
IN
CONTROL
400
= 3.3V
3471 TA02b
C6
33pF
R5
20k
R6
10k
105k
R1
500
90.9k
15k
R3
R4
R2
15k
C6
75pF
3471 TA02
C4
10µF
C3
4.7µF
V
7V
500mA WHEN V
350mA WHEN V
250mA WHEN V
V
–7V TO –4V
–7V WHEN V
–4V WHEN V
–7V, 300mA WHEN V
–7V, 250mA WHEN V
–7V, 200mA WHEN V
OUT1
OUT2
CONTROL
CONTROL
IN
IN
IN
= 4.2V
= 3.3V
= 2.6V
IN
IN
IN
= 0V
= 1
= 4.2V
= 3.3V
= 2.6V
LT3471
11
3471fa