LSM-0.75/16-D12 MURATA [Murata Manufacturing Co., Ltd.], LSM-0.75/16-D12 Datasheet

LSM-0.75/16-D12

Manufacturer Part Number

LSM-0.75/16-D12

Description

Non-Isolated, 13-80W SMT DC/DC Converters

Manufacturer

MURATA [Murata Manufacturing Co., Ltd.]

Datasheet

1.LSM-0.7516-D12.pdf (12 pages)

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FEATURES

www.murata-ps.com

Step-down buck regulators for new

distributed 12V power architectures

12V input (10-14V range)

0.75/1/1.2/1.5/1.8/2/2.5/3.3/5V

Non-isolated, ﬁ xed-frequency,

synchronous-rectiﬁ er topology

Tape and reel SMT package

±1.25% setpoint accuracy

Efﬁ ciencies to 96% @ 16 Amps

Noise as low as 50mVp-p

Stable no-load operation

Remote on/off control

Sense pin and output voltage trim

No derating to +65°C with 200 lfm

Designed to meet UL/IEC/EN60950-1

safety

EMC compliant

CONTROL

COMMON

ON/OFF

+INPUT

(1)

www.murata-ps.com/rohs

(3)

(2)

For full details go to

OUT

@16A

Typical topology is shown

CONTROLLER

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PWM

PRODUCT OVERVIEW

LSM Series D12 SMTs (surface-mount pack-

ages) are ideal building blocks for emerging,

on-board power-distribution schemes in which

isolated 12V buses deliver power to any num-

ber of non-isolated, step-down buck regulators.

LSM D12 DC/DC’s accept a 12V input (10V to

14V input range) and convert it, with the highest

efﬁ ciency in the smallest space, to a 0.75, 1,

1.2, 1.5, 1.8, 2, 2.5, 3.3 or 5 Volt output fully

rated at 16 Amps.

processors. They typically require no external

components. Their surface-mount packages

occupy a mere 1.3" x 0.53" (33.0 x 13.5mm),

and are only 0.34 inches (8.6mm) high.

is achieved with a fully synchronous, ﬁ xed-

frequency, buck topology that also delivers:

high efﬁ ciency (95% for 5V

LSM D12’s are ideal point-of-use/load power

The LSM’s best-in-class power density

Figure 1. Simpliﬁ ed Schematic

CURRENT

SENSE

OUT

models), low

Non-Isolated, 13-80W SMT DC/DC Converters

REFERENCE &

ERROR AMP

Technical enquiries email: sales@murata-ps.com, tel:

LSM-16A D12 Models

Typical Unit

noise (50mVp-p typ.), tight line/load regulation

(±0.1%/±0.25% max.), quick step response

(100μsec), stable no-load operation, and no

output reverse conduction.

overcurrent detection, continuous short-circuit

protection, over-temperature protection, a

remote on/off control pin (pull low to disable),

an output-voltage trim function, and a sense

pin. High efﬁ ciency enables the LSM D12’s to

deliver rated output currents of 16 Amps at

ambient temperatures to +65°C with 100 lfm

air ﬂ ow.

supply voltages, check out the economics of

on-board 12V distributed power. If you don’t

need to pay for multiple isolation barriers,

Murata Power Solutions’ non-isolated LSM D12

SMTs will save you money.

The fully functional LSM’s feature output

If your new system boards call for multiple

MDC_LSM 16A D12 Models.A05 Page 1 of 12

+OUTPUT

+SENSE

COMMON

TRIM

(5)

OUT

(6)

(4)

(3)

+1 508 339 3000

Related parts for LSM-0.75/16-D12

LSM-0.75/16-D12 Summary of contents

Page 1

... LSM D12 DC/DC’s accept a 12V input (10V to 14V input range) and convert it, with the highest efﬁ ciency in the smallest space 0.75, 1, 1.2, 1.5, 1.8, 2, 2.5, 3 Volt output fully rated at 16 Amps. LSM D12’ ...

Page 2

... Performance Speciﬁ cations and Ordering Guide ORDERING GUIDE V I OUT OUT Models (Volts) (Amps) LSM-0.75/16-D12 0.75 16 LSM-1/16-D12 1 16 LSM-1.2/16-D12 1.2 16 LSM-1.5/16-D12 1.5 16 LSM-1.8/16-D12 1.8 16 LSM-2/16-D12 2 16 LSM-2.5/16-D12 2.5 16 LSM-3.3/16-D12 3.3 16 LSM-5/16-D12 5 16 LSM-T/16-D12 0.75-5 16 ➀ Typical +25°C under nominal line voltage and full-load conditions, 200 lfm air ﬂ ow for A extended operation, unless otherwise noted. All models are tested and speciﬁ ...

Page 3

... OUT Technical Notes I/O Filtering and Noise Reduction All models in the LSM D12 Series are tested and speciﬁ ed with external 22μF tantalum input and output capacitors. These capacitors are necessary and 0.75V OUT accommodate our test equipment and may not be required to achieve desired = 1 ...

Page 4

... See Typical Performance Curves. Remote Sense LSM D12 SMT Series DC/DC converters offer an output sense function on pin 6. The sense function enables point-of-use regulation for overcoming moderate IR drops in conductors and/or cabling. Since these are non-isolated devices whose inputs and outputs usually share the same ground plane, sense is provided only for the +Output ...

Page 5

... If the output current exceeds it maximum rating by typically 70% (27 Amps the output voltage drops to less than 98 original value, the LSM D12's internal overcurrent-detection circuitry immediately turns off the con- verter, which then goes into a " ...

Page 6

... V – NOM O Where Desired Output Voltage Nominal Output Voltage O NOM LSM-0.75/16-D12: LSM-1/16-D12: LSM-1.2/16-D12: LSM-1.5/16-D12: LSM-1.8/16-D12: LSM-2/16-D12: LSM-2.5/16-D12: LSM-3.3/16-D12: LSM-5/16-D12: Note: Resistor values are in kΩ. Accuracy of adjustment is subject to tolerances of resistors and factory-adjusted, initial output accuracy. ...

Page 7

... In both cases, the cause is the “freewheeling” or “catch” FET biasing itself on and effectively becoming a short circuit. LSM D12 SMT DC/DC converters do not suffer from Output Reverse Conduc- tion. They employ proprietary gate drive circuitry that makes them immune to applied output voltages ...

Page 8

... Typical Performance Curves for LSM D12 SMT Series UQQ-5/17-Q12P Efficiency vs. Line Voltage and Load Current @ 25° 10V 12V 14V Load Current (Amps) www.murata-ps.com Non-Isolated, 13-80W SMT DC/DC Converters LSM-16A D12 Models Technical enquiries email: sales@murata-ps ...

Page 9

... Typical Performance Curves for LSM D12 SMT Series www.murata-ps.com LSM-16A D12 Models Non-Isolated, 13-80W SMT DC/DC Converters Technical enquiries email: sales@murata-ps.com, tel: MDC_LSM 16A D12 Models.A05 Page 508 339 3000 ...

Page 10

Page 11

... MPS is not exempted from the Laws of Physics, and we do not have magic solders no one else has. Nevertheless, we have a simple and practical, straight- forward approach that works. We assemble our LSM SMT DC/DCs using a high-temperature (+216°C), lead-free alloy (Sn96.2%, Ag2.5%, Cu0.8%, Sb0.5%). The LSM design ensures co-planarity to within 0.004 inches (100μm) of the unit’ ...

Page 12

... DATEL’s new-generation LSM SMT DC/DC converters are shipped in quantities of 150 modules per tape and reel. 2.063 1.370 2.205 (56) (52.4) (34.8) DIMENSIONS IN INCHES (mm) 0.590 (14.97) 2.44 (62.0) Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansﬁ eld, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 www.murata-ps.com email: sales@murata-ps.com ISO 9001 and 14001 REGISTERED Murata Power Solutions, Inc ...

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