LTM8032_15 Datasheet, PDF (1/26 Pages) Linear Technology – EN55022B Compliant 36V, 2A DC/DC Module Regulator

Features
n _{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
Applications
n _{Automotive Battery Regulation}
n _{Power for Portable Products}
n _{Distributed Supply Regulation}
n _{Industrial Supplies}
n _{Wall Transformer Regulation}
LTM8032
EN55022B Compliant 36V,
2A DC/DC µModule
Regulator
Description
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.
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.
Typical Application
Ultralow Noise 5V/2A DC/DC µModule Regulator
V_IN*
7VDC TO 36VDC
V_IN
V_OUT
FIN
RUN/SS
AUX
2.2µF
LTM8032 BIAS
10µF
V_OUT
5V
2A
SHARE
PGOOD
RT SYNC GND ADJ
44.2k
47.5k
8032 TA01a
f_SW = 700kHz
*RUNNING VOLTAGE RANGE.
SEE APPLICATIONS FOR START-UP DETAILS
LTM8032 EMI Performance
90
80
70
60
50
40
EN55022
CLASS B
30
LIMIT
20
10
0
–10
0
100 200 300 400 500 600 700 800 900 1000
FREQUENCY (MHz)
8031 TA01b
For more information www.linear.com/LTM8032
8032fg
1