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LTC3633AIFE-3#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P28
LTC3633A-2/LTC3633A-3
25
3633a23fb
For more information www.linear.com/LTC3633A-2
TYPICAL APPLICATIONS
6A 1MHz 2-Phase Buck Regulator
PV
IN1
SV
IN
PV
IN2
INTV
CC
LTC3633A-2
ITH2
ITH1
MODE/SYNC
3633a23 TA07
RT
V
ON1
V
ON2
V
FB1
V
FB2
29.4k
1µH
V
IN
3.6V TO 20V
C1
22µF
×2
C2
2.2µF
RUN1
RUN2
PHMODE
BOOST1
SW1
0.1µF
BOOST2
SW2
0.1µF
PGNDSGND
1µH
C
OUT
47µF
×2
19.6k
V
OUT
1.5V AT 6A
6.04k
1nF
324k
PACKAGE DESCRIPTION
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
FE28 (EB) TSSOP REV J 1012
0.09 – 0.20
(.0035 – .0079)
0° – 8°
0.25
REF
0.50 – 0.75
(.020 – .030)
4.30 – 4.50*
(.169 – .177)
1 3 4
5
6
7
8 9 10
11
12 13 14
192022 21 151618 17
9.60 – 9.80*
(.378 – .386)
4.75
(.187)
2.74
(.108)
28 27 26 2524 23
1.20
(.047)
MAX
0.05 – 0.15
(.002 – .006)
0.65
(.0256)
BSC
0.195 – 0.30
(.0077 – .0118)
TYP
2
RECOMMENDED SOLDER PAD LAYOUT
EXPOSED
PAD HEAT SINK
ON BOTTOM OF
PACKAGE
0.45 ±0.05
0.65 BSC
4.50 ±0.10
6.60 ±0.10
1.05 ±0.10
4.75
(.187)
2.74
(.108)
MILLIMETERS
(INCHES)
*DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.150mm (.006") PER SIDE
NOTE:
1. CONTROLLING DIMENSION: MILLIMETERS
2. DIMENSIONS ARE IN
3. DRAWING NOT TO SCALE
SEE NOTE 4
4. RECOMMENDED MINIMUM PCB METAL SIZE
FOR EXPOSED PAD ATTACHMENT
6.40
(.252)
BSC
FE Package
28-Lead Plastic TSSOP (4.4mm)
(Reference LTC DWG # 05-08-1663 Rev J)
Exposed Pad Variation EB
LTC3633A-2/LTC3633A-3
26
3633a23fb
For more information www.linear.com/LTC3633A-2
PACKAGE DESCRIPTION
4.00 ± 0.10
(2 SIDES)
2.50 REF
5.00 ± 0.10
(2 SIDES)
NOTE:
1. DRAWING PROPOSED TO BE MADE A JEDEC PACKAGE OUTLINE MO-220 VARIATION (WXXX-X).
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
PIN 1
TOP MARK
(NOTE 6)
0.40 ± 0.10
27 28
1
2
BOTTOM VIEW—EXPOSED PAD
3.50 REF
0.75 ± 0.05
R = 0.115
TYP
R = 0.05
TYP
PIN 1 NOTCH
R = 0.20 OR 0.35
× 45° CHAMFER
0.25 ± 0.05
0.50 BSC
0.200 REF
0.00 – 0.05
(UFD28) QFN 0506 REV B
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED
0.70 ±0.05
0.25 ±0.05
0.50 BSC
2.50 REF
3.50 REF
4.10 ± 0.05
5.50 ± 0.05
2.65 ± 0.05
3.10 ± 0.05
4.50 ± 0.05
PACKAGE OUTLINE
2.65 ± 0.10
3.65 ± 0.10
3.65 ± 0.05
UFD Package
28-Lead Plastic QFN (4mm × 5mm)
(Reference LTC DWG # 05-08-1712 Rev B)
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
LTC3633A-2/LTC3633A-3
27
3633a23fb
For more information www.linear.com/LTC3633A-2
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.
REVISION HISTORY
REV DATE DESCRIPTION PAGE NUMBER
A 12/13 Clarified Absolute Maximum Ratings 2
B 5/15 Clarified I
LIM
limits.
Clarified Inductor Selection.
3
13
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P28

LTC3633AIFE-3#TRPBF

Mfr. #:
Buy LTC3633AIFE-3#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators Dual 3A, 20Vin, 4MHz, Monolithic Synchronous Step-Down Regulator
Lifecycle:
New from this manufacturer.
Delivery:
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