LTM8032
EN55022B Compliant 36V,
2A DC/DC µModule
Regulator
Description
Features
Complete Step-Down Switch Mode Power Supply
n Wide Input Voltage Range: 3.6V to 36V
n 2A Output Current
n 0.8V to 10V Output Voltage
n Selectable Switching Frequency: 200kHz to 2.4MHz
n EN55022 Class B Compliant
n Current Mode Control
n Programmable Soft-Start
n SnPb (BGA) or RoHS Compliant (LGA and BGA)
Finish
n 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 utilization of unused space on the bottom of PC boards for
high density point of load regulation.
Applications
The LTM8032 is packaged in a thermally enhanced, compact 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 compliant terminal finish.
n
n
n
n
n
n
Automotive Battery Regulation
Power for Portable Products
Distributed Supply Regulation
Industrial Supplies
Wall Transformer Regulation
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.
Typical Application
Ultralow Noise 5V/2A DC/DC µModule Regulator
VIN*
7VDC TO 36VDC
VOUT
VIN
10µF
RUN/SS
AUX
LTM8032 BIAS
2.2µF
SHARE
PGOOD
RT SYNC GND ADJ
44.2k
VOUT
5V
2A
90
80
EMISSIONS LEVEL (dBµV/m)
FIN
LTM8032 EMI Performance
47.5k
8032 TA01a
70
60
50
EN55022
CLASS B
LIMIT
40
30
20
10
0
fSW = 700kHz
*RUNNING VOLTAGE RANGE.
SEE APPLICATIONS FOR START-UP DETAILS
–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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