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LT3995IMSE#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24
LT3995
22
3995f
For more information www.linear.com/LT3995
TYPICAL APPLICATIONS
4V Step-Down Converter with a High Impedance Input Source
2.5V Step-Down Converter
V
IN
PG BOOST
EN
0.47µF
PDS360
47µF
1210
×2
3995 TA05
47nF
C
BULK
100µF
24V
10µF
432k
f = 800kHz
54.9k
499k
5.49M
V
OUT
4V
3A
4.7µH
LT3995
SS
RT
SW
OUT
FB
SYNC GND
1M
10pF
+
V
+
–
V
IN
EN
BOOST
OFF ON
V
IN
4.3V TO 60V
PG
0.47µF
47µF
1210
×2
3995 TA06
10nF
10µF
909k
f = 250kHz
226k
V
OUT
2.5V
3A
10µH
LT3995
SS
RT
SW
OUT
FB
SYNC GND
1M
10pF
PDS360
5V Step-Down Converter
12V Step-Down Converter
V
IN
EN BOOSTOFF ON
V
IN
5.7V TO 60V
PG
0.47µF
PDS360
22µF
1210
×2
3975 TA02
10nF
10µF
316k
f = 500kHz
97.6k
V
OUT
5V
3A
6.8µH
LT3995
SS
RT
SW
OUT
FB
SYNC GND
1M
10pF
V
IN
EN BOOSTOFF ON
V
IN
12.9V TO 60V
PG
0.47µF
22µF
1210
×2
3995 TA03
10nF
10µF
110k
f = 800kHz
54.9k
V
OUT
12V
2.5A (3A TRANSIENTS)
10µH
LT3995
SS
RT
SW
OUT
FB
SYNC GND
1M
10pF
PDS360
APPLICATIONS INFORMATION
Also keep in mind that the leakage current of the power
Schottky diode goes up exponentially with junction tem-
perature. When the power switch is off, the power Schottky
diode is in parallel with the power converter’s output
filter stage. As a result, an increase in a diode’s leakage
current results in an effective increase in the load, and a
corresponding increase in the input quiescent current.
Therefore, the catch Schottky diode must be selected
with care to avoid excessive increase in light load supply
current at high temperatures.
Other Linear Technology Publications
Application Notes 19, 35 and 44 contain more detailed
descriptions and design information for buck regulators
and other switching regulators. The LT1376 data sheet
has a more extensive discussion of output ripple, loop
compensation and stability testing. Design Note 318
shows how to generate a bipolar output supply using a
buck regulator.
LT3995
23
3995f
For more information www.linear.com/LT3995
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.
PACKAGE DESCRIPTION
Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings.
MSOP (MSE16) 0911 REV E
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
16
161514 13121110
1 2 3 4 5 6 7 8
9
9
1
8
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
6. EXPOSED PAD DIMENSION DOES INCLUDE MOLD FLASH. MOLD FLASH ON E-PAD SHALL
NOT EXCEED 0.254mm (.010") PER SIDE.
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
0.50
(.0197)
BSC
BOTTOM VIEW OF
EXPOSED PAD OPTION
2.845 ±0.102
(.112 ±.004)
2.845 ±0.102
(.112 ±.004)
4.039 ±0.102
(.159 ±.004)
(NOTE 3)
1.651 ±0.102
(.065 ±.004)
1.651 ±0.102
(.065 ±.004)
0.1016 ±0.0508
(.004 ±.002)
3.00 ±0.102
(.118 ±.004)
(NOTE 4)
0.280 ±0.076
(.011 ±.003)
REF
4.90 ±0.152
(.193 ±.006)
DETAIL “B”
DETAIL “B”
CORNER TAIL IS PART OF
THE LEADFRAME FEATURE.
FOR REFERENCE ONLY
NO MEASUREMENT PURPOSE
0.12 REF
0.35
REF
MSE Package
16-Lead Plastic MSOP, Exposed Die Pad
(Reference LTC DWG # 05-08-1667 Rev E)
LT3995
24
3995f
For more information www.linear.com/LT3995
LINEAR TECHNOLOGY CORPORATION 2013
LT 0513 • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER DESCRIPTION COMMENTS
LT3975 42V, 2.5A, 2MHz High Efficiency Micropower Step-Down DC/DC
Converter with I
Q
= 2.7µA
V
IN
: 4.3V to 40V, V
OUT(MIN)
= 1.2V, I
Q
= 2.8µA, I
SD
< 1µA,
MSOP-16E Package
LT3976 40V, 5A, 2MHz High Efficiency Micropower Step-Down DC/DC
Converter with I
Q
= 3.3µA
V
IN
: 4.3V to 40V, V
OUT(MIN)
= 1.2V, I
Q
= 2.8µA, I
SD
< 1µA,
MSOP-16E Package
LT3970 40V, 350mA, 2.2MHz High Efficiency Micropower Step-Down
DC/DC Converter with I
Q
= 2.5µA
V
IN
: 4.2V to 40V, V
OUT(MIN)
= 1.21V, I
Q
= 2.5µA, I
SD
< 1µA,
3mm × 2mm DFN-10, MSOP-10 Packages
LT3990 62V, 350mA, 2.2MHz High Efficiency Micropower Step-Down
DC/DC Converter with I
Q
= 2.5µA
V
IN
: 4.2V to 62V, V
OUT(MIN)
= 1.21V, I
Q
= 2.5µA, I
SD
< 1µA,
3mm × 2mm DFN-10, MSOP-10 Packages
LT3971 38V, 1.2A, 2.2MHz High Efficiency Micropower Step-Down
DC/DC Converter with I
Q
= 2.8µA
V
IN
: 4.3V to 38V, V
OUT(MIN)
= 1.2V, I
Q
= 2.8µA, I
SD
< 1µA,
3mm × 3mm DFN-10, MSOP-10E Packages
LT3991 55V, 1.2A, 2.2MHz High Efficiency Micropower Step-Down
DC/DC Converter with I
Q
= 2.8µA
V
IN
: 4.3V to 55V, V
OUT(MIN)
= 1.2V, I
Q
= 2.8µA, I
SD
< 1µA,
3mm × 3mm DFN-10, MSOP-10E Packages
LT8611 42V, 2.5A, 96% Efficiency, 2.2MHz Synchronous Micropower
Step-Down DC/DC Converter with I
Q
= 2.5µA and Input/Output
Current Limit/Monitor
V
IN
: 3.4V to 42V, V
OUT(MIN)
= 0.985V, I
Q
= 2.5µA, I
SD
< 1µA,
3mm × 5mm QFN-24 Package
LT8610 42V, 2.5A, 96% Efficiency, 2.2MHz Synchronous Micropower
Step-Down DC/DC Converter with I
Q
= 2.5µA and Input/Output
Current Limit/Monitor
V
IN
: 3.4V to 42V, V
OUT(MIN)
= 0.985V, I
Q
= 2.5µA, I
SD
< 1µA,
MSOP-16E Package
LT3480 36V with Transient Protection to 60V, 2A (I
OUT
), 2.4MHz, High
Efficiency Step-Down DC/DC Converter with Burst Mode Operation
V
IN
: 3.6V to 36V Transient to 60V, V
OUT(MIN)
= 0.78V, I
Q
= 70µA,
I
SD
< 1µA, 3mm × 3mm DFN-10, MSOP-10E Packages
LT3980 58V with Transient Protection to 80V, 2A (I
OUT
), 2.4MHz, High
Efficiency Step-Down DC/DC Converter with Burst Mode Operation
V
IN
: 3.6V to 58V Transient to 80V, V
OUT(MIN)
= 0.78V, I
Q
= 85µA,
I
SD
< 1µA, 3mm × 4mm DFN-16, MSOP-16E Packages
5V, 2MHz Step-Down Converter with Power Good
V
IN
EN
BOOST
OFF ON
V
IN
5.9V TO 16V
TRANSIENT
TO 60V)
0.47µF
47µF
1210
3995 TA04
10nF
4.7µF
316k
150k
f = 2MHz
14.7k
V
OUT
5V
3A
PGOOD
2.2µH
LT3995
SS
RT
SW
OUT
PG
FB
SYNC GND
1M
10pF
PDS360
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com/LT3995
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24

LT3995IMSE#PBF

Mfr. #:
Buy LT3995IMSE#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators 60V, 3A, 2MHz Step-Down Switching Regulator with 2.7 A Quiescent Current
Lifecycle:
New from this manufacturer.
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