LT3003
13
3003fa
1A Buck Mode LT3003 with the LT1618
Effi ciency
LT3003
LED2 LED3
LED1
D1
14V
R1
1M
V
IN
5V
C3
1µF
50V
L1
10µH
1.5A
PWM
100Hz, 5V
500:1 MAX PWM
DIMMING RATIO
C
OUT
1µF
50V
CER
220pF
GND
PWM
V
MAX
I
LED
= 333mA
PER STRING
V
EE
V
IN
SHDN
OT1
OT2
C1
4.7µF
50V
CER
10nF
3003 TA05a
1k
1N4148W
ZLLS1000
R
SENSE
0.05
1%, 1A
ISN
LT1618
ISP
V
IN
SHDN
SW
Q4
2N7002
V
C
I
ADJ
GND FB
NC
1µF
10V
CER
V
IN
32V
TOTAL LED CURRENT (A)
0
77
EFFICIENCY (%)
78
79
80
81
82
83
0.2 0.4 0.6 0.8
3003 TA05b
1.0
NUMBER OF LEDS = 6 × 3 = 18
TYPICAL APPLICATIONS
LT3003
14
3003fa
1A Buck LT3003 with the LT3475
Effi ciency
LT3003
GND
20V
LED1
LED2
LED3
V
MAX
V
IN
V
EE
SHDN
OT2
OT1
PWM
PWM1
100Hz
2000:1 MAX PWM
DIMMING RATIO
LED1
LED4
LED7
LED2
330mA PER STRING
3S 3P LUXEON I WHITE
LED5
LED8
LED3
LED6
LED9
C3
1µF
50V
V
IN
56 16
1120
8
10
7
3
1
4
R1
20k
V
IN
SHDN
PWM1 PWM2
BOOST1
OUT1
17
REF
SW1
LED1
D1
1N4448W
D2
B240A
C1
0.22µF
X5R
R4
1.0k
L1
10µH
SUMIDA
BOOST2
OUT2
SW2
9
2
GND GND
R
T
LT3475
LED2
SECOND
CHANNEL
ONE OF TWO
CHANNELS SHOWN
R8
2.0k
12
19
V
ADJ1
V
ADJ2
R10
10k
R12
11.8k
1%
R13
1.0M
C7
220pF
Q3
2N7002
C5
0.1µF
C3
3300pF
C
OUT1
2.2µF
16V
C
IN1
4.7µF
50V
13
15 14 21
f
SW
= 1MHz
3003 TA06a
18
V
C1
V
C2
V
IN
24V
TOTAL LED CURRENT (A)
0
50
EFFICIENCY (%)
65
70
80
0.2
0.4
0.6 0.8
3003 TA06b
1.0
90
100
55
65
75
85
95
1.2
TYPICAL APPLICATIONS
LT3003
15
3003fa
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.
MSE Package
10-Lead Plastic MSOP
(Reference LTC DWG # 05-08-1664)
MSOP (MSE) 0603
0.53 ± 0.152
(.021 ± .006)
SEATING
PLANE
0.18
(.007)
1.10
(.043)
MAX
0.17 – 0.27
(.007 – .011)
TYP
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
10
1
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
2.083 ± 0.102
(.082 ± .004)
2.794 ± 0.102
(.110 ± .004)
0.50
(.0197)
BSC
BOTTOM VIEW OF
EXPOSED PAD OPTION
1.83 ± 0.102
(.072 ± .004)
2.06 ± 0.102
(.081 ± .004)
0.127 ± 0.076
(.005 ± .003)
PACKAGE DESCRIPTION

LT3003EMSE#PBF

Mfr. #:
Manufacturer:
Analog Devices / Linear Technology
Description:
LED Lighting Drivers Three Channel LED Ballaster w/ PWM Dimming
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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