LT3476 LINER [Linear Technology], LT3476 Datasheet - Page 11

• Manufacturer Part Number: LT3476
• Description: High Current Quad Output LED Driver
• Manufacturer: LINER [Linear Technology]

(2 SIDES)
PACKAGE DESCRIPTIO
TYPICAL APPLICATIO
± 0.05
5.50
(2 SIDES)
± 0.05
4.10
PACKAGE
OUTLINE
± 0.05
(2 SIDES)
0.70
± 0.05
3.15
5V TO 25V
2.8V TO
RECOMMENDED SOLDER PAD LAYOUT
PV
16V
V
IN
IN
5.15 ± 0.05 (2 SIDES)
6.10 ± 0.05 (2 SIDES)
7.50 ± 0.05 (2 SIDES)
350mA
0.50 BSC
0.25 ± 0.05
CAP1
2.2μF
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 representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
PWM1-4
2.2μF
5V to 25V Step-Up/Step-Down Driver for 2 Series 350mA LEDs
300mΩ
SHDN
U
LED1
U
10μH
350mA
CAP2
38-Lead Plastic QFN (5mm × 7mm)
SW1
CAP1-4
LED1-4
V
PWM1-4
SHDN
(Reference LTC DWG # 05-08-1701)
IN
(2 SIDES)
± 0.10
± 0.05
7.00
0.75
NOTE:
1. DRAWING CONFORMS TO JEDEC PACKAGE
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
2.2μF
300mΩ
OUTLINE M0-220 VARIATION WHKD
UHF Package
LED2
PIN 1
TOP MARK
(SEE NOTE 6)
SW2
LT3476
5.00 ± 0.10
10μH
GND
(2 SIDES)
SW3
10μH
350mA
2.2μF
VADJ1-4
0.200 REF
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION
VC1-4
3476 TA03
300mΩ
0.200 REF
SW4
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.20mm ON ANY SIDE
ON THE TOP AND BOTTOM OF PACKAGE
REF
0.75 ± 0.05
CAP3
LED3
R
0.00 – 0.05
T
1.05V
(2 SIDES)
0.00
– 0.05
10μH
± 0.10
5.15
350mA
47k
0.50 BSC
0.25 ± 0.05
2.2μF
BOTTOM VIEW—EXPOSED PAD
300mΩ
47nF
CAP4
LED4
3.15 ± 0.10
(2 SIDES)
LT3476
R = 0.115
TYP
37
38
PIN 1 NOTCH
R = 0.30 TYP
OR 0.35 × 45°
CHAMFER
11
(UH) QFN 0205
3476fa
±0.10
±0.10
0.40
1
2
0.40