13
LTC3402
3402fb
3
10
2
6
1
3404 TA05a
LTC3402
V
IN
SHDN
MODE/SYNC
PGOOD
R
t
SW
V
OUT
FB
V
C
GND
4
7
8
9
5
C3
470pF
C4
20pF
1
CELL
C1
3.3μF
R3
1M
R5
39k
R2
866k
R1
619k
D1
V
OUT
3V
500mA
L1
2.2μH
C2
10μF
C1: TAIYO YUDEN JMK212BJ335MG
C2: TAIYO YUDEN JMK325BJ106MM
D1: ON SEMICONDUCTOR MBRM120T3
L1: COILCRAFT DO1608-222
V
IN
= 0.9V TO 1.5V
0 = FIXED FREQUENCY
1 = Burst Mode OPERATION
R
t
10k
+
R4
5.1M
TYPICAL APPLICATIO S
U
Single Cell to 3V at 500mA, All Ceramic Capacitor, 3MHz Step-Up Converter
Efficiency
OUTPUT CURRENT (mA)
20
EFFICIENCY (%)
40
50
70
90
0.1 10 100 1000
3402 TA05b
0
1
60
30
10
80
Burst Mode
OPERATION
3MHz FIXED
FREQUENCY
Li-Ion to 5V at 300mA, 1MHz Step-Up Converter
Efficiency
3
10
2
6
1
3402 TA07a
LTC3402
V
IN
SHDN
MODE/SYNC
PGOOD
R
t
SW
V
OUT
FB
V
C
GND
4
7
8
9
5
C3
470pF
C4
4.7pF
Li-Ion
C1
4.7μF
R3
1M
R5
82k
R
t
30.1k
R2
1.65M
R1
549k
D1*
V
OUT
5V
600mA
L1
10μH
C2*
22μF
*LOCATE COMPONENTS AS CLOSE TO
IC AS POSSIBLE
C1: TAIYO YUDEN JMK212BJ475MG
C2: TAIYO YUDEN JMK325BJ226MM
D1: ON SEMICONDUCTOR MBRM120T3
L1: SUMIDA CDH53-100
V
IN
= 2.5V TO 4.2V
0 = FIXED FREQUENCY
1 = Burst Mode OPERATION
LOAD CURRENT (mA)
0.1
0
EFFICIENCY (%)
10
30
40
50
100
70
3402 G10
20
80
90
60
110
100
1000
1MHz
FIXED
FREQUENCY
Burst Mode OPERATION
V
IN
= 3.6V
14
LTC3402
3402fb
High Efficiency, Compact CCFL Supply with Remote Dimming
TYPICAL APPLICATIO S
U
3
10
2
6
1
3402 TA06
LTC3402
V
IN
SHDN
MODE/SYNC
PGOOD
R
t
SW
V
OUT
FB
V
C
GND
4
7
8
9
5
C5
1μF
C4
0.1μF
Li-Ion
C1
10μF
R5
1M
R
t
150k
R2
10k
R3
1k
R4
20k
D4
D1
D2 D3
Q1
Q2
C2
0.22μF
T1
1
10 2 3
4
5
6
C3
27pF
1kV
CCFL
DIMMING
INPUT
0V TO 2.5V
V
IN
= 2.5V TO 4.2V
R1
300Ω
L1
33μF
C1: TAIYO YUDEN JMK212BJ106MG
C2: PANASONIC ECH-U
D1: ZETEX ZHCS-1000
D2 TO D4: 1N4148
CCFL BACKLIGHT APPLICATION CIRCUITS
CONTAINED IN THIS DATA SHEET ARE
COVERED BY U.S. PATENT NUMBER 5408162
AND OTHER PATENTS PENDING
L1: SUMIDA CD-54-330MC
Q1, Q2: ZETEX FMMT-617
T1: SUMIDA C1Q122
15
LTC3402
3402fb
PACKAGE DESCRIPTION
U
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
MS Package
10-Lead Plastic MSOP
(Reference LTC DWG # 05-08-1661)
MSOP (MS) 0603
0.53 ± 0.152
(.021 ± .006)
SEATING
PLANE
0.18
(.007)
1.10
(.043)
MAX
0.17 – 0.27
(.007 – .011)
TYP
0.127 ± 0.076
(.005 ± .003)
0.86
(.034)
REF
0.50
(.0197)
BSC
12
3
45
4.90 ± 0.152
(.193 ± .006)
0.497 ± 0.076
(.0196 ± .003)
REF
8910
7
6
3.00 ± 0.102
(.118 ± .004)
(NOTE 3)
3.00 ± 0.102
(.118 ± .004)
(NOTE 4)
NOTE:
1. DIMENSIONS IN MILLIMETER/(INCH)
2. DRAWING NOT TO SCALE
3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.
MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.
INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX
0.254
(.010)
0
° – 6° TYP
DETAIL “A”
DETAIL “A”
GAUGE PLANE
5.23
(.206)
MIN
3.20 – 3.45
(.126 – .136)
0.889 ± 0.127
(.035 ± .005)
RECOMMENDED SOLDER PAD LAYOUT
0.305 ± 0.038
(.0120 ± .0015)
TYP
0.50
(.0197)
BSC

LTC3402EMS#PBF

Mfr. #:
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators 2A, 3MHz uP Sync Boost Conv
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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