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Analog Devices Semiconductor Electronic Components Datasheet

LTM8002 Datasheet

2.5A Silent Switcher uModule Regulator

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LTM8002
40VIN, 2.5A Silent Switcher
µModule Regulator
FEATURES
nn Complete Step-Down Switch Mode Power Supply
nn Low Noise Silent Switcher® Architecture
nn Wide Input Voltage Range: 3.4V to 40V
nn Wide Output Voltage Range: 0.97V to 18V
nn Wide Temperature Range: –40°C to 150°C (H-Grade)
nn 2.8A Continuous for 5VOUT, 12VIN, 2MHz at 105°C
(H-Grade)
nn 3.5A Peak
nn FMEA Compliant Pinout
Output Stays at or Below Regulation Voltage During
Adjacent Pin Short or if a Pin Is Left Floating
nn Selectable Switching Frequency: 200kHz to 3MHz
nn External Synchronization
nn Low Quiescent Current: 25µA (5VOUT)
nn Programmable Soft-Start
nn Tiny, Low Profile 6.25mm × 6.25mm × 2.22mm
BGA Package
APPLICATIONS
nn Automotive Battery Regulation
nn Power for Portable Products
nn Distributed Supply Regulation
nn Industrial Supplies
nn Wall Transformer Regulation
DESCRIPTION
The LTM®8002 is a 40VIN, 2.5A step-down µModule®
(power module) regulator. Included in the package are
the switching controller, power switches, inductor, and
all support components. Operating over an input voltage
range of 3.4V to 40V, the LTM8002 supports an output
voltage range of 0.97V to 18V and a switching frequency
range of 200kHz to 3MHz, each set by a single resistor.
Only the input and output filter capacitors are needed to
finish the design.
The low profile package enables utilization of unused
space on the bottom of PC boards for high density point of
load regulation. The LTM8002 is packaged in a thermally
enhanced, compact over-molded ball grid array (BGA)
package suitable for automated assembly by standard
surface mount equipment. The LTM8002 is available with
SnPb or RoHS compliant terminal finish.
All registered trademarks and trademarks are the property of their respective owners.
TYPICAL APPLICATION
5VOUT from 7VIN to 40VIN Step-Down Converter
VIN
7V TO 40V
VIN
RUN
2.2µF
41.2k
1MHz
RT
LTM8002
VOUT
BIAS
GND SYNC
24.3k
FB
PINS NOT USED IN THIS CIRCUIT: TR/SS, PG
22µF
VOUT
5V
3.5A PEAK
8002 TA01a
Derating, H-Grade, BIAS = 5V,
DC2501A Demo Board
4
3
2
1
0 LFM
0
fSW
=
2MHz
12VIN
0 25 50
75 100 125 150
AMBIENT TEMPERATURE (°C)
8002 TA01b
Document Feedback
For more information www.analog.com
Rev 0
1


Analog Devices Semiconductor Electronic Components Datasheet

LTM8002 Datasheet

2.5A Silent Switcher uModule Regulator

No Preview Available !

LTM8002
ABSOLUTE MAXIMUM RATINGS
(Notes 1, 2)
VIN, RUN, PG Voltage ............................................... 42V
VOUT, BIAS Voltage .................................................. 19V
FB, TR/SS Voltage ..................................................... 4V
SYNC Voltage ............................................................. 6V
Maximum Internal Temperature (I-Grade) ............ 125°C
Maximum Internal Temperature (H-Grade) .......... 150°C
Storage Temperature (I-Grade) .............. –55°C to 125°C
Storage Temperature (H-Grade) ............ –55°C to 150°C
Peak Reflow Solder Body Temperature ................ 260°C
PIN CONFIGURATION
TOP VIEW
ADJUSTABLE VERSION
SYNC TR/SS
GND
A RT
PG RUN
B
C
GND
NC VIN
D NC
FB BANK 1
E
BIAS
GND
F BANK 2
VOUT
G
1234567
BGA PACKAGE
49-LEAD (6.25mm × 6.25mm × 2.22mm) BGA PACKAGE
TJMAX = 150°C, θJA = 21.1°C/W, θJCbottom = 5.9°C/W
θJCtop = 24.4°C/W, θJB = 4.4°C/W, WEIGHT = 0.5g
θ VALUES DETERMINED PER JEDEC51-9, 51-12
TOP VIEW
FIXED OUTPUT VERSION
SYNC TR/SS
GND
A RT
PG RUN
B
C
GND
NC VIN
D NC
BANK 1
E
BIAS
GND
F BANK 2
VOUT
G
1234567
BGA PACKAGE
49-LEAD (6.25mm × 6.25mm × 2.22mm) BGA PACKAGE
TJMAX = 150°C, θJA = 21.1°C/W, θJCbottom = 5.9°C/W
θJCtop = 24.4°C/W, θJB = 4.4°C/W, WEIGHT = 0.5g
θ VALUES DETERMINED PER JEDEC51-9, 51-12
ORDER INFORMATION http://www.linear.com/product/LTM8002#orderinfo
PART NUMBER
TERMINAL FINISH
PART MARKING*
DEVICE
FINISH CODE
PACKAGE
TYPE
MSL
RATING
TEMPERATURE RANGE
LTM8002IY#PBF
SAC305 (RoHS)
LTM8002
e1
BGA 3 –40°C to 125°C
LTM8002HY#PBF
SAC305 (RoHS)
LTM8002
e1
BGA 3 –40°C to 150°C
LTM8002HY
SnPb (63/37)
LTM8002
e0
BGA 3 –40°C to 150°C
LTM8002IY-3.3#PBF
SAC305 (RoHS) LTM8002-3.3
e1
BGA 3 –40°C to 125°C
LTM8002HY-3.3#PBF
SAC305 (RoHS) LTM8002-3.3
e1
BGA 3 –40°C to 150°C
• Consult Marketing for parts specified with wider operating temperature
ranges. *Device temperature grade is indicated by a label on the shipping
container. Pad or ball finish code is per IPC/JEDEC J-STD-609.
• Terminal Finish Part Marking: www.linear.com/leadfree
• Recommended BGA PCB Assembly and Manufacturing Procedures:
www.linear.com/umodule/pcbassembly
• BGA Package and Tray Drawings: www.linear.com/packaging
Rev 0
2 For more information www.analog.com


Part Number LTM8002
Description 2.5A Silent Switcher uModule Regulator
Maker Analog Devices
Total Page 28 Pages
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