LSM2-T MURATA [Murata Manufacturing Co., Ltd.], LSM2-T Datasheet

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LSM2-T

Manufacturer Part Number
LSM2-T
Description
DOSA-SMT, 30A POL DC/DC Converters
Manufacturer
MURATA [Murata Manufacturing Co., Ltd.]
Datasheet

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Part Number
Manufacturer
Quantity
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Manufacturer:
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Quantity:
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FEATURES
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SIMPLIFIED SCHEMATIC
Non-isolated Point-of-Load (POL) converter,
ideal for distributed bus applications
Optimized for CPUs, DSPs and program-
mable logic - FPGAs, ASICs
30 Amps maximum output current
User-selectable output voltage, 0.8Vdc to
5.0Vdc via trim resistor or voltage input
Wide input range 6Vdc to 14Vdc (V
Selectable phased start-up sequencing and
tracking
Excellent efficiency over output voltage range
Two models available, with or without addi-
tional ground/thermal pads
Fast settling, high di/dt slew rate, low
output noise
Extensive self protection plus 'hiccup' short
circuit auto recovery
Designed for full safety and emission certification
SEQUENCE
Additional
ground/thermal
pads
COMMON
CONTROL
V
INPUT
ON/OFF
TRACK
+INPUT
www.murata-ps.com/rohs
/
For full details go to
 
V
CC
out
construction/attach
<3.6V)
Lead-free
Pb
Typical unit
CONTROLLER
*One phase of two is shown.
PWM
www.murata-ps.com
DESCRIPTION
Today’s high performance CPU and programma-
ble logic devices demand superior performance
from their power source. The LSM2-T/30-D12
series DC/DC converters offer up to 30 Amps
continuous output power with a user-selectable
output of 0.8 to 3.6 Volts. 25 Amps output is
available up to 5.0 V
ideal for distributed bus architectures (DBA) and
intermediate power busses with an input range
of 6 to 14 Volts DC. The pinout, trim system and
mechanical footprint is compatible with the DOSA
(www.dosapower.com) industry standard.
logic systems, the LSM2-T/30-D12 features low
output noise, high slew rates (20 Amps/µSec.),
fast transient response (25 µSec settling) and
tight line and load regulation. Many logic devices
require controlled start up and tracking capabili-
ties. The LSM2-T/30-D12 includes a Sequence/
Track function and prebias protection against
external startup voltages. Other DBA features
To ensure very high performance of powered
CURRENT
SENSE
out
. This tiny converter is
*
REFERENCE &
ERROR AMP
LSM2-T/30-D12 Series
Technical enquiries email: sales@murata-ps.com, tel:
DOSA-SMT, 30A POL DC/DC Converters
include no additional external components
required, stable no-load operation, up to 10,000
µF output load capacitance and no reverse
conduction.
trol, two additional ground pins (optional) and a
load Sense input. Agency certifications include
UL/EN 60950-1, CAN/CSA-C22.2 60950-1, IEC
60950-1, and FCC emissions characterization.
The automated surface mount assembly is fully
RoHS (Reduction of Hazardous Substances)
lead-free construction and attachment. The
LSM2-T/30-D12 mounts to its host carrier
board via reflow-soldered PCB pads.
and freedom from expensive, bulky heat sinks. A
wealth of protection features include input under-
voltage shutdown, output overcurrent current lim-
iting, short circuit protection and overtemperature
shutdown/recycle.
System functions offer a remote On/Off con-
The extraordinary efficiency means low heat
MDC_LSM2_T30_D12 Series.B11 Page 1 of 12
Typical topology is shown.
+OUTPUT
+SENSE
TRIM
COMMON
V
OUT
+1 508 339 3000

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LSM2-T Summary of contents

Page 1

... FCC emissions characterization. The automated surface mount assembly is fully RoHS (Reduction of Hazardous Substances) lead-free construction and attachment. The LSM2-T/30-D12 mounts to its host carrier board via reflow-soldered PCB pads. The extraordinary efficiency means low heat and freedom from expensive, bulky heat sinks. A ...

Page 2

... Load 125 15 25 ±0.2% ±0.4% 125 15 25 ±0.2% ±0.4%  Nominal line voltage, no-load/full-load conditions.  LSM2-T/30-D12 efficiencies are shown at V  I max Amps with Vin = 0.8 to 3.6 Volts. With V out ➆ >3.63V, input range is 7-14V. out L SM2 T 30 D12 R - ...

Page 3

... The “R” pads and the standard pads 1 and 2 are in parallel. If your application uses a standard DOSA pad layout and you cannot con- nect to these ground pads, order model LSM2-T/30-D12-C without the “R” designator. Please observe the lower Derating curves for standard, “non-R” ...

Page 4

... Short circuit shutdown begins when the output voltage degrades approximately 2% from the selected setting. www.murata-ps.com LSM2-T/30-D12 Series DOSA-SMT, 30A POL DC/DC Converters Dynamic Characteristics 60 µSec to within ±2% of final value ...

Page 5

... Output current limiting is disabled at start up to avoid overcurrent shutdown while charging external bypass capacitors. Output Adjustments The LSM2-T/30-D12 series includes a special output voltage trimming fea- ture which is fully compatible with competitive units. The output voltage may be varied using a single trim resistor from the Trim Input to Power Common. ...

Page 6

... 2.66 4.31 5.97 7.62 9.28 10.9 12.6 14.2 Load C urre nt (Amps) LSM2-T/30-D12R Maximum Current Temperature Derating at Sea Level (V = 12V, Transverse Airflow). Extra ground pads installed. in 31.00 30.00 300 LFM 29.00 400 LFM 28.00 500 LFM 27.00 26.00 25.00 24.00 23.00 22.00 21.00 20.00 Natural Convection 19.00 100 LFM 18.00 200 LFM 17.00 16.00 15.00 14.00 13 ...

Page 7

... utput Current (Amps) LSM2-T/30-D12R Maximum Current Temperature Derating at Sea Level (V = 12V, Transverse Airflow). Extra ground pads installed. in 31.00 30.00 300 LFM 29.00 400 LFM 28 ...

Page 8

... utput C urre nt (Amps) LSM2-T/30-D12R Maximum Current Temperature Derating at Sea Level (V = 12V, Transverse Airflow). Extra ground pads installed. in 31.00 30.00 300 LFM 29.00 400 LFM 28.00 27.00 26.00 25.00 24.00 23.00 22.00 21.00 Natural Convection 100 LFM 20 ...

Page 9

... Load Current (Amps) LSM2-T/30-D12R Maximum Current Temperature Derating at Sea Level (V = 12V, Transverse Airflow). Extra ground pads installed. in 31.00 30.00 29.00 28.00 27.00 26.00 25.00 Natural Convection 24.00 ...

Page 10

... Output Current (Amps) LSM2-T/30-D12R Maximum Current Temperature Derating (V = 12V, Transverse Airflow). Extra ground pads installed. in 31.00 300 LFM 30.00 400 LFM 29.00 28.00 27.00 26.00 25.00 24.00 23.00 Natural Convection 22.00 100 LFM 21.00 200 LFM 20.00 19.00 18.00 17.00 16. ...

Page 11

... Output Current (Amps) LSM2-T/30-D12R Maximum Current Temperature Derating (V = 12V, Transverse Airflow). Extra ground pads installed. in 31.00 30.00 29.00 28.00 27.00 26.00 25.00 24.00 23.00 Natural Convection 22.00 100 LFM 21.00 200 LFM 20.00 19.00 18.00 17.00 16. ...

Page 12

... China: © 2008 Murata Power Solutions, Inc. Singapore: www.murata-ps.com LSM2-T/30-D12 Series DOSA-SMT, 30A POL DC/DC Converters Mansfield (MA), Tel: (508) 339-3000, email: sales@murata-ps.com Toronto, Tel: (866) 740-1232, email: toronto@murata-ps.com Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com Montigny Le Bretonneux, Tel: +33 (0 01, email: france@murata-ps.com Mü ...

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