LSN-T/16-W3-C【PDF 1/8 页】CONV DC/DC 16A .75-3.3V SIP

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LAST TIME BUY: AUGUST 31, 2014. CLICK HERE FOR OBSOLESCENCE NOTICE OF FEBRUARY 2014.

www.murata-ps.com

FEATURES

Single Output LSN-W3 Models

Non-Isolated, 3-5.5V IN , 0.75-3.3V OUT

16 Amp DC/DC Converters

Typ ica a Typical l

ER RVI EW OVERVIEW

NOT RECOMMENDED unit

PRODUCT FOR NEW DESIGNS

?? Step-down, wide input buck regulators

for distributed 3-5V power architectures

?? to 5.5V wide-input range

?? 0.75/1/1.2/1.5/1.8/2/2.5/3.3V OUT @16A

?? Non-isolated, ?xed-frequency,

synchronous-recti?er topology

?? ±1% setpoint accuracy

?? ?ciencies to 95% @ 16 Amps

?? Noise as low as 30mVp-p

? Stable no-load operation

?? Remote on/off control

?? Sense pin and output voltage trim

?? derating to +65°C with no fan

?? UL/IEC/EN60950-1 certi?cation pending

?? EMC compliant

Typical topology is shown.

For full details go to

www.murata-ps.com/rohs

LSN Series W3 are ideal building blocks for emerg-

ing, on-board power-distribution schemes in which

isolated 3 to 5.5V buses deliver power to any num-

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

LSN W3 DC/DC’s accept 3 to 5.5 Volts and convert

it, with the highest ef?ciency 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.

LSN W3’s are ideal point-of-use/load power

processors. They typically require no external com-

ponents. 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.

The LSN’s best-in-class power density

is achieved with a fully synchronous, fixed-

frequency, buck topology that also delivers:

high efficiency (97%, 3.3Vout, 8A), low noise

Figure 1. Simpli?ed Schematic

(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.

The fully functional LSN’s feature output over-

current detection, continuous short-circuit protec-

tion, over-temperature protection, a remote on/off

control pin (pull low to disable), an output-voltage

trim function, and a sense pin. High ef?ciency en-

ables the LSN 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 multiple sup-

ply voltages, check out the economics of on-board

3-5.5V distributed power. If you don’t need to pay

for multiple isolation barriers, DATEL’s non-isolated

LSN W3 SMT’s will save you money.

www.murata-ps.com/support

MDC_LSN W3 Models.B01 Page 1 of 8

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