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LTC3633AEUFD#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30
LTC3633A/LTC3633A-1
28
3633a1fb
For more information www.linear.com/LTC3633A
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/LTC3633A-1
29
3633a1fb
For more information www.linear.com/LTC3633A
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
LTC3633A/LTC3633A-1
30
3633a1fb
For more information www.linear.com/LTC3633A
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
LINEAR TECHNOLOGY CORPORATION 2012
LT 0515 REV B • PRINTED IN USA
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com/LTC3633A
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DESCRIPTION COMMENTS
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RUN1
RUN2
RT
LTC3633A
BOOST2
3633a TA07
0.1µF
L2
0.68µH
R4
20k
R3
10k
SW2
V
ON2
V
IN2
V
IN1
V
FB2
BOOST1
SW1
V
ON1
V
FB1
C
OUT2
47µF
V
OUT2
1.8V AT 3A
0.1µF
1µF
L1
1µH
R2
45.3k
R1
10k
C
OUT1
22µF
V
OUT1
3.3V AT 3A
2.5V AT 10mA
V
IN
12V
C1
47µF
×2
R5
162k
V2P5
ITH1
PHMODE
ITH2
MODE/SYNC
INTV
CC
C2
2.2µF
PGNDSGND
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30

LTC3633AEUFD#PBF

Mfr. #:
Buy LTC3633AEUFD#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators Dual 3A, 20Vin, 4MHz, Monolithic Synchronous Step-Down Regulator
Lifecycle:
New from this manufacturer.
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