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LTM8032
FEATURES
EN55022B Compliant 36V,
2A DC/DC μModule
Regulator
DESCRIPTION
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Complete Step-Down Switch Mode Power Supply
Wide Input Voltage Range: 3.6V to 36V
2A Output Current
0.8V to 10V Output Voltage
Selectable Switching Frequency: 200kHz to 2.4MHz
EN55022 Class B Compliant
Current Mode Control
Programmable Soft-Start
SnPb (BGA) or RoHS Compliant (LGA and BGA)
Finish
Low Profile, Surface Mount LGA (9mm × 15mm
× 2.82mm) and BGA (9mm × 15mm × 3.42mm)
Packages
The LTM ? 8032 is an electromagnetic compatible (EMC)
36V, 2A DC/DC step-down μModule ? regulator designed
to meet the radiated emissions requirements of EN55022.
Conducted emission requirements can be met by adding
standard filter components. Included in the package are the
switching controller, power switches, inductor, filters and
all support components. Operating over an input voltage
range of 3.6V to 36V, the LTM8032 supports an output
voltage range of 0.8V to 10V, and a switching frequency
range of 200kHz to 2.4MHz, each set by a single resistor.
Only the bulk input and output filter capacitors are needed
to finish the design. The low profile package enables uti-
lization of unused space on the bottom of PC boards for
high density point of load regulation.
Automotive Battery Regulation
Power for Portable Products
Distributed Supply Regulation
Industrial Supplies
Wall Transformer Regulation
APPLICATIONS
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TYPICAL APPLICATION
Ultralow Noise 5V/2A DC/DC μModule Regulator
The LTM8032 is packaged in a thermally enhanced, com-
pact and low profile overmolded land grid array (LGA) and
ball grid array (BGA) packages suitable for automated
assembly by standard surface mount equipment. The
LTM8032 is available with SnPb (BGA) or RoHS compli-
ant terminal finish.
L , LT, LTC, LTM, Linear Technology, the Linear logo, μModule and Burst Mode are registered
trademarks of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
LTM8032 EMI Performance
V IN *
7VDC TO 36VDC
2.2μF
V IN V OUT
FIN
RUN/SS AUX
LTM8032 BIAS
SHARE PGOOD
RT SYNC GND ADJ
10μF
V OUT
5V
2A
90
80
70
60
50
40
30
20
EN55022
CLASS B
LIMIT
44.2k
47.5k
10
8032 TA01a
f SW = 700kHz
*RUNNING VOLTAGE RANGE.
SEE APPLICATIONS FOR START-UP DETAILS
0
–10
0
100 200 300 400 500 600 700 800 900 1000
FREQUENCY (MHz) 8031 TA01b
8032fg
For more information www.linear.com/LTM8032
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