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LTC3620EDC-1#TRMPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
LTC3620
16
3620fa
PACKAGE DESCRIPTION
2.00 p0.10
(4 SIDES)
NOTE:
1. DRAWING IS NOT A JEDEC PACKAGE OUTLINE
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 p 0.10
BOTTOM VIEW—EXPOSED PAD
0.64 p 0.10
(2 SIDES)
0.75 p0.05
R = 0.115
TYP
R = 0.05
TYP
1.37 p0.10
(2 SIDES)
1
4
85
PIN 1 BAR
TOP MARK
(SEE NOTE 6)
0.200 REF
0.00 – 0.05
(DC8) DFN 0409 REVA
0.23 p 0.05
0.45 BSC
0.25 p 0.05
1.37 p0.05
(2 SIDES)
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED
0.64 p0.05
(2 SIDES)
1.15 p0.05
0.70 p0.05
2.55 p0.05
PACKAGE
OUTLINE
0.45 BSC
PIN 1 NOTCH
R = 0.20 OR
0.25 s 45o
CHAMFER
DC Package
8-Lead Plastic DFN (2mm × 2mm)
(Reference LTC DWG # 05-08-1719 Rev A)
LTC3620
17
3620fa
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 8/10 Added (Note 2) to Electrical Characteristics header
V
LOADREG
value of 0.5% moved from TYP to MAX
Note 2 updated, Note 4 deleted and note numbers corrected
V
SW
value updated on graph G10
Pin 9 text updated in Pin Functions section
2, 3
2
3
5
7
LTC3620
18
3620fa
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2009
LT 0810 REV A • PRINTED IN USA
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LTC3631/LTC3631-3.3/
LTC3631-5
45V, 100mA (I
OUT
), Ultralow Quiescent Current Synchronous
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V
IN
: 4.5V to 45V (60V
MAX
), V
OUT(MIN)
= 0.8V,
I
Q
= 12A, I
SD
< 1A, 3mm × 3mm DFN Package, MSOP-8E
LTC3632 50V, 20mA (I
OUT
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V
IN
: 4.5V to 50V (60V
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), V
OUT(MIN)
= 0.8V,
I
Q
= 12A, I
SD
< 1A, 3mm × 3mm DFN Package, MSOP-8E
LTC3642/LTC3642-3.3/
LTC3642-5
45V, 50mA (I
OUT
), Ultralow Quiescent Current Synchronous
Step-Down DC/DC Converter
V
IN
: 4.5V to 45V (60V
MAX
), V
OUT(MIN)
= 0.8V,
I
Q
= 12A, I
SD
< 1A, 3mm × 3mm DFN Package, MSOP-8E
LTC3405A/LTC3405AB 300mA I
OUT
, 1.5MHz, Synchronous Step-Down DC/DC Converter 95% Effi ciency, V
IN
: 2.5V to 5.5V, V
OUT(MIN)
= 0.8V,
I
Q
= 20A, I
SD
< 1A, ThinSOT Package
LTC3406A/LTC3406AB 600mA I
OUT
, 1.5MHz, Synchronous Step-Down DC/DC Converter 96% Effi ciency, V
IN
: 2.5V to 5.5V, V
OUT(MIN)
= 0.6V,
I
Q
= 20A, I
SD
< 1A, ThinSOT Package
LTC3407A/LTC3407A-2 Dual 600mA/800mA I
OUT
, 1.5MHz/2.25MHz, Synchronous
Step-Down DC/DC Converter
95% Effi ciency, V
IN
: 2.5V to 5.5V, V
OUT(MIN)
= 0.6V,
I
Q
= 40A, I
SD
< 1A, MS10E, DFN Packages
LTC3409 600mA I
OUT
, 2.25MHz, Synchronous Step-Down DC/DC Converter 96% Effi ciency, V
IN
: 1.6V to 5.5V, V
OUT(MIN)
= 0.6V,
I
Q
= 65A, I
SD
< 1A, DFN Package
LTC3410/LTC3410B 300mA I
OUT
, 2.25MHz, Synchronous Step-Down DC/DC Converter 95% Effi ciency, V
IN
: 2.5V to 5.5V, V
OUT(MIN)
= 0.8V,
I
Q
= 26A, I
SD
< 1A, SC70 Package
LTC3411A 1.25A I
OUT
, 4MHz, Synchronous Step-Down DC/DC Converter 95% Effi ciency, V
IN
: 2.5V to 5.5V, V
OUT(MIN)
= 0.8V,
I
Q
= 60A, I
SD
< 1A, MS10, DFN Packages
LTC3548 Dual 400mA/800mA I
OUT
, 2.25MHz, Synchronous Step-Down
DC/DC Converter
95% Effi ciency, V
IN
: 2.5V to 5.5V, V
OUT(MIN)
= 0.6V,
I
Q
= 40A, I
SD
< 1A, MS10, DFN Packages
LTC3561A 1A I
OUT
, 4MHz, Synchronous Step-Down DC/DC Converter 95% Effi ciency, V
IN
: 2.5V to 5.5V, V
OUT(MIN)
= 0.8V,
I
Q
= 240A, I
SD
< 1A, 3mm × 3mm DFN Package
TYPICAL APPLICATIONS
High Effi ciency Low Power Step-Down Converter,
LTC3620-1 Internally Programmed, 1.1V
OUT
Effi ciency vs Load Current
Effi ciency vs V
IN
V
IN
RUN
1µF
CER
2.2µF
CER
LOBATB
LOBATB
V
IN
2.9V TO 5.5V
V
OUT
1.1V
3620 TA04a
1M
22µH
LTC3620-1
SW
V
FB
FMIN/MODE
GND
LOAD CURRENT (mA)
0.1
40
EFFICIENCY (%)
50
60
70
80
110
3620 G21
30
20
10
0
90
100
V
IN
= 3V
V
IN
= 3.6V
V
IN
= 5.5V
T
A
= 25°C
V
OUT
= 1.1V
FMIN/MODE = 0V
V
IN
(V)
2.5
0
EFFICIENCY (%)
10
30
40
50
100
70
3.5
4.5
3620 TA04c
20
80
90
60
5.5
6.5
I
OUT
= 500µA
I
OUT
= 1mA
I
OUT
= 10mA
T
A
= 25°C
V
OUT
= 1.1V
FMIN/MODE = 0V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

LTC3620EDC-1#TRMPBF

Mfr. #:
Buy LTC3620EDC-1#TRMPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators Ultralow Power 15mA High Efficiency Step Down Switching Regulator
Lifecycle:
New from this manufacturer.
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