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LTM8055-1 Datasheet

8.5A Buck-Boost uModule Regulator

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LTM8055/LTM8055-1
36VIN, 8.5A Buck-Boost
µModule Regulator
FEATURES
n Complete Buck-Boost Switch Mode Power Supply
n VOUT Equal, Greater, Less Than VIN
n Wide Input Voltage Range: 5V to 36V
n 12V/3A Output from 6VIN
n 12V/6A Output from 12VIN
n 12V/8.5A Output from 24VIN
n Up to 97.5% Efficient
n Adjustable Input and Output Average Current Limits
n Input and Output Current Monitors
n Parallelable for Increased Output Current
n Wide Output Voltage Range: 1.2V to 36V
n Selectable Switching Frequency: 100kHz to 800kHz
n Synchronization from 200kHz to 700kHz
n External Compensation (LTM8055-1)
n 15mm × 15mm × 4.92mm BGA Package
APPLICATIONS
n High Power Battery-Operated Devices
n Industrial Control
n Solar Powered Voltage Regulator
n Solar Powered Battery Charging
All registered trademarks and trademarks are the property of their respective owners.
DESCRIPTION
The LTM®8055/LTM8055-1 is a 36VIN, buck-boost
µModule® (micromodule) regulator. Included in the pack-
age are the switching controller, power switches, inductor
and support components. A resistor to set the switching
frequency, a resistor divider to set the output voltage,
and input and output capacitors are all that are needed
to complete the design. Other features such as input and
output average current regulation may be implemented
with just a few components. The LTM8055/LTM8055-1
operates over an input voltage range of 5V to 36V, and
can regulate output voltages between 1.2V and 36V. The
SYNC input and CLKOUT output allow easy synchronization.
The LTM8055/LTM8055-1 is housed in a compact over-
molded ball grid array (BGA) package suitable for auto-
mated assembly by standard surface mount equipment.
The LTM8055/LTM8055-1 is RoHS compliant.
Buck-Boost Selection Table
LTM8054
VIN (Operation)
VIN Abs Max
VOUT Abs Max
2IO4UVTIN(P, 1ea2kV)OUT
Package
36
40
40
5.4
15 × 11.25mm ×
3.42mm BGA
LTM8055/LTM8055-1
36
40
40
8.5
LTM8056
58
60
60
5.5
15 × 15mm × 4.92mm BGA
Pin and Function Compatible
TYPICAL APPLICATION
12VOUT from 5VIN to 36VIN Buck-Boost Regulator
VIN
5V TO 36V
4.7µF
50V
×2
36.5k
VIN LTM8055/
SVIN LTM8055-1
IIN
RUN
CTL
SS
SYNC
COMP
RT LL MODE
GND
VOUT
IOUT
CLKOUT
IINMON
IOUTMON
FB
100k
11k
fSW = 600kHz
VOUT
12V
68µF
22µF
25V
8055 TA01a
Document Feedback
For more information www.analog.com
Maximum Output Current and Efficiency vs VIN
10 98
EFFICIENCY
8
OUTPUT
CURRENT
6
96
94
92
4 90
88
2
86
0 84
0 10 20 30 40
VIN (V)
8055 TA01b
Rev C
1


Analog Devices Semiconductor Electronic Components Datasheet

LTM8055-1 Datasheet

8.5A Buck-Boost uModule Regulator

No Preview Available !

LTM8055/LTM8055-1
ABSOLUTE MAXIMUM RATINGS
(Note 1)
VIN, SVIN, VOUT, RUN, IIN, IOUT Voltage......................40V
FB, SYNC, CTL, MODE Voltage....................................6V
IINMON, IOUTMON Voltage..............................................6V
LL Voltage..................................................................15V
Maximum Junction Temperature (Notes 2, 3)........ 125°C
Storage Temperature.............................. –55°C to 125°C
Peak Solder Reflow Body Temperature.................. 245°C
PIN CONFIGURATION
TOP VIEW
SVIN
BANK 3
VIN
BANK 1
GND
BANK 2
VOUT
11
10
9
8
7
6
5
4
3
2
1
IIN
RUN
IINMON
IOUTMON
GND
ABCDE FGHJ K L
IOUT
LL
RT FB SS
CLKOUT
MODE SYNC
CTL
BGA PACKAGE
COMP
121-LEAD (15mm × 15mm × 4.92mm)
TJMAX = 125°C, θJA = 20.5°C/W, θJCbottom = 11.0°C/W, θJCtop = 21.2°C/W, θJB = 10.5°C/W,
WEIGHT = 2.8g, θ VALUES DETERMINED PER JEDEC JESD51-9, 51-12
ORDER INFORMATION
PART NUMBER
LTM8055EY#PBF
LTM8055IY#PBF
LTM8055IY
LTM8055MPY#PBF
LTM8055MPY
LTM8055EY-1#PBF
LTM8055IY-1#PBF
TERMINAL FINISH
SAC305 (RoHS)
SAC305 (RoHS)
SnPb(63/37)
SAC305 (RoHS)
SnPb(63/37)
SAC305 (RoHS)
SAC305 (RoHS)
PART MARKING*
DEVICE
FINISH CODE
LTM8055Y
e1
LTM8055Y
e1
LTM8055Y
e0
LTM8055Y
e1
LTM8055Y
e0
LTM8055Y-1
e1
LTM8055Y-1
e1
PACKAGE
TYPE
BGA
BGA
BGA
BGA
BGA
BGA
BGA
MSL
RATING
3
3
3
3
3
3
3
TEMPERATURE RANGE
(SEE NOTE 2)
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–55°C to 125°C
–40°C to 125°C
–40°C to 125°C
• Device temperature grade is indicated by a label on the shipping
container.
• Pad or ball finish code is per IPC/JEDEC J-STD-609.
BGA Package and Tray Drawings
This product is not recommended for second side reflow.
This product is moisture sensitive. For more information, go to
Recommended BGA PCB Assembly and Manufacturing Procedures.
Rev C
2 For more information www.analog.com


Part Number LTM8055-1
Description 8.5A Buck-Boost uModule Regulator
Maker Analog Devices
Total Page 26 Pages
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