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LTC3624EMSE#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
LTC3624/LTC3624-2
1
36242fd
For more information www.linear.com/LTC3624
Typical applicaTion
FeaTures DescripTion
17V, 2A Synchronous
Step-Down Regulator with
3.5µA Quiescent Current
The LT C
®
3624/LTC3624-2 is a high efficiency 17V, 2A
synchronous monolithic step-down regulator. The switch-
ing frequency is fixed to 1MHz (LTC3624) or 2.25MHz
(
LTC3624
-2) with a ±40% synchronization range. The
regulator features ultralow quiescent current and high
efficiency over a wide V
OUT
range.
The step-down regulator operates from an input voltage
range of 2.7V to 17V and provides an adjustable output
range from 0.6V to V
IN
while delivering up to 2A of output
current. A user-selectable mode input is provided to allow
the user to trade off ripple noise for light load efficiency;
Burst Mode operation provides the highest efficiency at
light loads, while pulse-skipping mode provides the lowest
voltage ripple. The MODE pin can also be used to sync the
switching frequency to an external clock.
Efficiency and Power Loss vs Load
5V V
OUT
with 800mA Burst Clamp, f
SW
= 1MHz
applicaTions
n
Wide V
IN
Range: 2.7V to 17V
n
Wide V
OUT
Range: 0.6V to V
IN
n
95% Max Efficiency
n
Low I
Q
: 3.5µA, Zero-Current Shutdown
n
Constant Frequency (1MHz/2.25MHz)
n
Fixed V
OUT
Options Available
n
Low Dropout Operation (100% Duty Cycle) with
Ultralow I
Q
n
2A Rated Output Current
n
±1% Output Voltage Accuracy
n
Current Mode Operation for Excellent Line and Load
Transient Response
n
Synchronizable to External Clock
n
Pulse-Skipping, Forced Continuous, Burst Mode
®
Operation
n
Internal Compensation and Soft-Start
n
Overtemperature Protection
n
Compact 8-Lead DFN (3mm × 3mm) Package
n
Battery Powered Equipment
n
Portable Instrumentation
n
Emergency Radios
n
General Purpose Step-Down Supplies
L, LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks
and Hot Swap is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners. Protected by U.S. Patents, including 5481178, 6580258,
6498466, 6611131, 6177787, 5705919, 5847554, 6703692.
LTC3624/LTC3624-2 Options
PART NAME FREQUENCY V
OUT
LTC3624 1MHz Adjustable
LTC3624-3.3 1MHz 3.3V
LTC3624-5 1MHz 5V
LTC3624-2 2.25MHz Adjustable
LTC3624-23.3 2.25MHz 3.3V
LTC3624-25 2.25MHz 5V
LOAD CURRENT (A)
0
0
EFFICIENCY (%)
POWER LOSS (W)
10
30
40
50
100
70
0.5
1
3624 TA01b
20
80
90
60
0
0.2
0.4
0.6
1.2
1.0
0.8
1.5
2
V
OUT
= 5V
BURST MODE OPERATION
V
IN
= 12V
V
IN
= 8V
V
IN
= 6V
FREQ = 1MHz
2.2µF
47µF
36242 TA01a
3.3µH
V
OUT
5V
2A
V
IN
RUN
SW
V
IN
5.6V TO 17V
LTC3624-5
GND
FB
MODE/SYNC
INTV
CC
10µF
LTC3624/LTC3624-2
2
36242fd
For more information www.linear.com/LTC3624
absoluTe MaxiMuM raTings
V
IN
Voltage ................................................. –0.3V to 17V
RUN Voltage............................................... –0.3V to 17V
MODE/SYNC, FB Voltages ............................ –0.3V to 6V
INTV
CC
, PGOOD Voltages ............................ –0.3V to 6V
(Note 1)
TOP VIEW
DD PACKAGE
8-LEAD (3mm × 3mm) PLASTIC DFN
5
6
7
8
9
GND
4
3
2
1SW
V
IN
RUN
PGOOD
GND
MODE/SYNC
INTV
CC
FB
T
JMAX
= 125°C, θ
JA
= 43°C/W, θ
JC
= 5.5°C/W
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
1
2
3
4
5
6
SW
SW
V
IN
V
IN
RUN
PGOOD
12
11
10
9
8
7
GND
GND
MODE/SYNC
INTV
CC
FB
NC
13
GND
TOP VIEW
MSE PACKAGE
12-LEAD PLASTIC MSOP
T
JMAX
= 150°C, θ
JA
= 40°C/W, θ
JC
= 10°C/W
EXPOSED PAD (PIN 13) IS GND, MUST BE SOLDERED TO PCB FOR
OPTIMAL THERMAL PERFORMANCE
pin conFiguraTion
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3624EDD#PBF LTC3624EDD#TRPBF LGJF 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C
LTC3624IDD#PBF LTC3624IDD#TRPBF LGJF 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C
LTC3624EMSE#PBF LTC3624EMSE#TRPBF 3624 12-Lead Plastic MSOP –40°C to 125°C
LTC3624IMSE#PBF LTC3624IMSE#TRPBF 3624 12-Lead Plastic MSOP –40°C to 125°C
LTC3624HMSE#PBF LTC3624HMSE#TRPBF 3624 12-Lead Plastic MSOP –40°C to 150°C
LTC3624EDD-3.3#PBF LTC3624EDD-3.3#TRPBF LGRG 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C
LTC3624IDD-3.3#PBF LTC3624IDD-3.3#TRPBF LGRG 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C
LTC3624EMSE-3.3#PBF LTC3624EMSE-3.3#TRPBF 362433 12-Lead Plastic MSOP –40°C to 125°C
LTC3624IMSE-3.3#PBF LTC3624IMSE-3.3#TRPBF 362433 12-Lead Plastic MSOP –40°C to 125°C
LTC3624HMSE-3.3#PBF LTC3624HMSE-3.3#TRPBF 362433 12-Lead Plastic MSOP –40°C to 150°C
LTC3624EDD-5#PBF LTC3624EDD-5#TRPBF LGRD 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C
LTC3624IDD-5#PBF LTC3624IDD-5#TRPBF LGRD 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C
LTC3624EMSE-5#PBF LTC3624EMSE-5#TRPBF 36245 12-Lead Plastic MSOP –40°C to 125°C
LTC3624IMSE-5#PBF LTC3624IMSE-5#TRPBF 36245 12-Lead Plastic MSOP –40°C to 125°C
LTC3624HMSE-5#PBF LTC3624HMSE-5#TRPBF 36245 12-Lead Plastic MSOP –40°C to 150°C
LTC3624EDD-2#PBF LTC3624EDD-2#TRPBF LGMN 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C
LTC3624IDD-2#PBF LTC3624IDD-2#TRPBF LGMN 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C
LTC3624EMSE-2#PBF LTC3624EMSE-2#TRPBF 36242 12-Lead Plastic MSOP –40°C to 125°C
LTC3624IMSE-2#PBF LTC3624IMSE-2#TRPBF 36242 12-Lead Plastic MSOP –40°C to 125°C
Operating Junction Temperature Range
(Notes 2, 5) ............................................–40°C to 150°C
Storage Temperature Range .................. –65°C to 150°C
http://www.linear.com/product/LTC3624#orderinfo
LTC3624/LTC3624-2
3
36242fd
For more information www.linear.com/LTC3624
elecTrical characTerisTics
The l denotes the specifications which apply over the specified operating
junction temperature range, otherwise specifications are at T
J
= 25°C. (Note 2) V
IN
= 12V, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Operating Voltage 2.7 17 V
V
OUT
Output Voltage Range 0.6 V
IN
V
I
VIN
Input Quiescent Current Shutdown Mode, V
RUN
= 0V
Burst Mode Operation
Forced Continuous Mode (Note 3)
0.1
3.5
1.8
1.0
7
µA
µA
mA
V
FB
Regulated Feedback Voltage (Note 4)
l
0.594
0.591
0.6
0.6
0.606
0.609
V
V
V
OUT
Regulated Fixed Output Voltage LTC3624-3.3/LTC3624-23.3 (Note 4)
l
3.267
3.250
3.3
3.3
3.333
3.350
V
V
LTC3624-5/LTC3624-25 (Note 4)
l
4.950
4.925
5.0
5.0
5.050
5.075
V
V
ΔV
LINE(REG)
Reference Voltage Line Regulation V
IN
= 2.7V to 17V (Note 4) 0.01 0.015 %/V
ΔV
LOAD(REG)
Output Voltage Load Regulation (Note 4) 0.1 %
I
LSW
NMOS Switch Leakage
PMOS Switch Leakage
0.1
0.1
1
1
µA
µA
R
DS(ON)
NMOS On-Resistance 115 mΩ
PMOS On-Resistance V
IN
= 5V 200 mΩ
D
MAX
Maximum Duty Cycle V
FB
= 0.5V, V
MODE/SYNC
= 1.5V
l
100 %
t
ON(MIN)
Minimum On-Time 60 ns
V
RUN
RUN Input High
RUN Input Low
0.35
1.0 V
V
I
RUN
RUN Input Current V
RUN
= 12V 0 100 nA
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3624HMSE-2#PBF LTC3624HMSE-2#TRPBF 36242 12-Lead Plastic MSOP –40°C to 150°C
LTC3624EDD-23.3#PBF LTC3624EDD-23.3#TRPBF LGRH 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C
LTC3624IDD-23.3#PBF LTC3624IDD-23.3#TRPBF LGRH 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C
LTC3624EMSE-23.3#PBF LTC3624EMSE-23.3#TRPBF 362423 12-Lead Plastic MSOP –40°C to 125°C
LTC3624IMSE-23.3#PBF LTC3624IMSE-23.3#TRPBF 362423 12-Lead Plastic MSOP –40°C to 125°C
LTC3624HMSE-23.3#PBF LTC3624HMSE-23.3#TRPBF 362423 12-Lead Plastic MSOP –40°C to 150°C
LTC3624EDD-25#PBF LTC3624EDD-25#TRPBF LGRF 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C
LTC3624IDD-25#PBF LTC3624IDD-25#TRPBF LGRF 8-Lead (3mm × 3mm) Plastic DFN –40°C to 125°C
LTC3624EMSE-25#PBF LTC3624EMSE-25#TRPBF 362425 12-Lead Plastic MSOP –40°C to 125°C
LTC3624IMSE-25#PBF LTC3624IMSE-25#TRPBF 362425 12-Lead Plastic MSOP –40°C to 125°C
LTC3624HMSE-25#PBF LTC3624HMSE-25#TRPBF 362425 12-Lead Plastic MSOP –40°C to 150°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/. Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
orDer inForMaTion
http://www.linear.com/product/LTC3624#orderinfo
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

LTC3624EMSE#TRPBF

Mfr. #:
Buy LTC3624EMSE#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators 17V, 2A Synchronous Step-Down Regulator with 3.5 A Quiescent Current
Lifecycle:
New from this manufacturer.
Delivery:
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