LSM-0.75/16-W3 MURATA [Murata Manufacturing Co., Ltd.], LSM-0.75/16-W3 Datasheet

LSM-0.75/16-W3

Manufacturer Part Number

LSM-0.75/16-W3

Description

Non-Isolated, Wide Input SMT DC/DC Converters

Manufacturer

MURATA [Murata Manufacturing Co., Ltd.]

Datasheet

1.LSM-0.7516-W3.pdf (12 pages)

Current page: 1 of 12
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FEATURES

Step-down, wide input buck regulators for

distributed 3-5V power architectures

3V to 5V wide-input range

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

Non-isolated, ﬁxed-frequency,

synchronous-rectiﬁer topology

Tape and reel SMT package

±1% setpoint accuracy

Efﬁciencies to 95% @ 16 Amps

Noise as low as 30mVp-p

Stable no-load operation

Remote on/off control

Sense pin and output voltage trim

No derating to +65°C with no fan

Designed to meet UL/IEC/EN60950-1 safety

EMC compliant

SIMPLIFIED SCHEMATIC

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

packages) are ideal building blocks for

emerging, on-board power-distribution

schemes in which isolated 3 to 5.5V buses

deliver power to any number of non-iso-

lated, step-down buck regulators. LSM W3

DC/DC’s accept 3 to 5.5 Volts and convert

it, with the highest efﬁciency in the smallest

space, to a 0.75, 1, 1.2, 1.5, 1.8, 2, 2.5, or

3.3 Volt output fully rated at 16 Amps.

power 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.

achieved with a fully synchronous, ﬁxed-

frequency, buck topology that also delivers:

high efﬁciency (97%, 3.3V

PRODUCT OVERVIEW

www.murata-ps.com

PWM

LSM Series W3 SMT’s (surface-mount

LSM W3’s are ideal point-of-use/load

The LSM’s best-in-class power density is

Figure 1. Simpliﬁed Schematic

Non-Isolated, Wide Input SMT DC/DC Converters

Typical unit

CURRENT

SENSE

OUT,

8A), low noise

REFERENCE &

ERROR AMP

DC/DC’s in SMT Packages

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

LSM-16A W3 Models

Non-Isolated, 3-5.5V

(30mVp-p typ.), tight line/load regulation

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

(30μsec), stable no-load operation, and no

output reverse conduction.

overcurrent detection, continuous short-

circuit protection, over-temperature protec-

tion, a remote on/off control pin (pull low to

disable), an output-voltage trim function,

and a sense pin. High efﬁciency enables the

LSM W3’s to deliver rated output currents of

16 Amps at ambient temperatures to +65°C

with natural convection.

tiple supply voltages, check out the econom-

ics of on-board 3-5.5V distributed power. If

you don’t need to pay for multiple isolation

barriers, DATEL’s non-isolated LSM W3

SMT’s will save you money.

0.75-3.3V

The fully functional LSM’s feature output

If your new system boards call for mul-

MDC_LSM-16A_W3.A04 Page 1 of 12

OUT

+OUTPUT

+SENSE

COMMON

TRIM

(5)

OUT

(6)

16 Amp

(4)

(3)

+1 508 339 3000

Related parts for LSM-0.75/16-W3

LSM-0.75/16-W3 Summary of contents

Page 1

... High efﬁciency enables the LSM W3’s to deliver rated output currents of 16 Amps at ambient temperatures to +65°C with natural convection. If your new system boards call for mul- tiple supply voltages, check out the econom- ics of on-board 3-5 ...

Page 2

... Performance Speciﬁcations and Ordering Guide Output R/N (mVp- OUT OUT Model (Volts) (Amps) Typ. LSM-0.75/16-W3 0. LSM-1/16- LSM-1.2/16-W3 1 LSM-1.5/16-W3 1 LSM-1.8/16-W3 1 LSM-2/16- LSM-2.5/16-W3 2 LSM-3.3/16-W3 3 LSM-T/16-W3 0.75-3 Typical +25°C under nominal line voltage and full-load conditions, unless noted. All models A are tested/speciﬁ ...

Page 3

... Input Ripple Current is tested/speciﬁed over a 5-20MHz bandwidth with an external 2 x 100μF input capacitor and a simulated source impedance of 1000μF and 1μH. See I/O Filtering, Input Ripple Current, and Output Noise for details. LSM-0.75/16-W3 can not be trimmed down. Input voltage must be 4.5V minimum for 3.3V output. Input Voltage: ...

Page 4

... See Typical Performance Curves. Remote Sense LSM W3 SMT Series DC/DC converters offer an output sense function on pin 6. The sense function enables point-of-use regulation for overcoming mod- erate 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 50% (24 Amps the output voltage drops to less than 98 original value, the LSM W3’s internal overcurrent-detection circuitry immediately turns off the converter, which then goes into a “ ...

Page 6

... Non-Isolated, Wide Input SMT DC/DC Converters “T” Model (LSM-T/16-W3) This version of the LSM-W3 series offers a special output voltage trimming feature which is fully compatible with competitive units. The output voltage may be varied using a single trim resistor from the Trim input (pin 5) to Power Common (pin 3) ...

Page 7

... Lastly, when LSM W3 SMT’s are installed in system boards, they are obviously subject to numerous factors and tolerances not taken into account here. If you are attempting to extract the most current out of these units under demanding temperature conditions, we advise you to monitor the output-inductor tempera- ture to ensure it remains below +110° ...

Page 8

... Non-Isolated, Wide Input SMT DC/DC Converters Typical Performance Curves for the LSM W3 SMT Series www.murata-ps.com LSM-16A W3 Models Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_LSM-16A_W3.A04 Page ...

Page 9

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Page 11

... Tape & Reel Surface Mount Package DATEL’s LSM series DC/DC converters are the only higher-current (16A) SMT DC/DC’s that can be automatically “pick-and-placed” using standard vacuum- pickup equipment (nozzle size and style, vacuum pressure and placement speed may need to be optimized for automated pick and place) and subse- quently reﬂ ...

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 (52.4) (34.8) (56) DIMENSIONS IN INCHES (mm) 0.590 (14.97) 2.44 (62.0) Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansﬁeld, 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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