Datasheet

LT3495/LT3495B/
LT3495-1/LT3495B-1
15
3495b1b1fa
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.
DDB Package
10-Lead Plastic DFN (3mm × 2mm)
(Reference LTC DWG # 05-08-1722 Rev Ø)
2.00 ±0.10
(2 SIDES)
NOTE:
1. DRAWING CONFORMS TO VERSION (WECD-1) IN JEDEC PACKAGE OUTLINE M0-229
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE TOP AND BOTTOM OF PACKAGE
0.40 ± 0.10
BOTTOM VIEW—EXPOSED PAD
0.64 ± 0.05
(2 SIDES)
0.75 ±0.05
R = 0.115
TYP
R = 0.05
TYP
2.39 ±0.05
(2 SIDES)
3.00 ±0.10
(2 SIDES)
15
106
PIN 1 BAR
TOP MARK
(SEE NOTE 6)
0.200 REF
0 – 0.05
(DDB10) DFN 0905 REV
Ø
0.25 ± 0.05
2.39 ±0.05
(2 SIDES)
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
0.64 ±0.05
(2 SIDES)
1.15 ±0.05
0.70 ±0.05
2.55
±0.05
PACKAGE
OUTLINE
0.25 ± 0.05
0.50 BSC
PIN 1
R = 0.20 OR
0.25 × 45°
CHAMFER
0.50 BSC
Efficiency vs Load Current
TYPICAL APPLICATIONS
Wide Input Range SEPIC Converter with 5V Output
SW CAP
V
CC
SHDN
CTRL
V
OUT
FB
GND
232k
3495 TA03a
LT3495B
C1
2.2µF
L1
10µH
L2
10µH
C3
10µF
C2
1µF
INPUT
2.6V TO 12V
TURN ON/OFF
V
OUT
DIMMING
C1: 2.2µF, 16V, X5R, 0805
C2: 1µF, 16V, X5R, 0805
C3: 10µF, 16V, X5R, 1206
D1: FAIRCHILD SEMI MBR0540
L1, L2: COILCRAFT LPS4018-103MLB
V
OUT
= 5V
200mA, V
IN
= 3.3V,
300mA, V
IN
= 5V,
500mA, V
IN
= 8V
D1
LOAD CURRENT (mA)
EFFICIENCY (%)
POWER LOSS (mW)
3495 TA03b
90
80
50
60
70
40
1200
1000
400
200
600
800
0
0.1 10 100 10001
V
CC
= 3.3V
PACKAGE DESCRIPTION