lt3479efe-trpbf Linear Technology Corporation, lt3479efe-trpbf Datasheet - Page 13

• Manufacturer Part Number: lt3479efe-trpbf
• Description: 3a, Full Featured Dc/dc Converter With Soft-start And Inrush Current Protection
• Manufacturer: Linear Technology Corporation

10V TO 14V
2.8V TO 4.2V
TYPICAL APPLICATIO S
V
V
IN
IN
4.7µF
16V
8V, 16V, –8V Triple Output Power Supply for TFTLCD Panels
1A Dual Tracking Power Supply with Adjustable Outputs
C1
4.7µF
SHDN
10nF
4.7µF
16V
C1: AVX 0805ZD475MAT
C2: AVX 1210YD226MAT
C3 TO C6: X5R/X7R 10V
20nF
V
SHDN
SS
IN
R
T
V
17.8k
V
SHDN
SS
V
SHDN
SS
S
IN
IN
R
R
LT3479
L
T
T
V
V
GND
10.2k
S
S
10.2k
3.3µH
L1
LT3479
LT3479
L
L
GND
GND
15µH
15µH
L1
L3
SW
V
FBN
V
FBP
U
REF
C
10k
V
V
2.2nF
SW
SW
V
V
C
C
FBN
FBN
FBP
FBP
REF
REF
4.99k
4.99k
C5
0.1µF
3.3nF
3.3nF
15µH
1µF
16V
1µF
16V
L2
D1: MBRM120 OR EQUIVALENT
D2, D3: BAT54S OR EQUIVALENT
L1: SUMIDA CDRH4D28-3R3
C6
0.1µF
3479 TA11
D1
10k
5.76k
D2
D1
15µH
L4
D1, D2: DIODES INC DFLS230 2A, 30V
D3: PHILIPS 1PS79SB62
L1-L4: SUMIDA CDRH6D38-150
ALL CAPACITORS X5R/X7R DIELECTRIC
OR EQUIVALENT
470pF
D3
470pF
100k
18.7k
26.1k
V
0V-2.5V
30µF
16V
10nF
CTRL
D2A
D3A
D2B
D3B
30µF
16V
C2
22µF
10.2k
1.13k
11.3k
C3
1µF
C4
1µF
V
–7V TO –10V
1A
V
7V TO 10V
1A
OUT
OUT
16V
10mA
8V
700mA
–8V
10mA
3479 TA10
100
90
80
70
60
50
80
75
70
65
60
55
50
0
0
V
IN
=14V, V
0.1
0.2
0.2
OUT
LOAD CURRENT (A)
Efficiency
Efficiency
= ±10V
0.4
0.3
I
V
OUT
IN
V
= 14V, V
(A)
0.4
IN
0.6
=10V, V
LT3479
0.5
OUT
OUT
0.8
= ±7V
13
0.6
= ±7V
3479 TA11b
3479 TA10b
3479fa
0.7
1.0