LSN16A-W3 Datasheet, PDF (1/8 Pages) Murata Manufacturing Co., Ltd. – Non-Isolated, 3-5.5VIN, 0.75-3.3VOUT 16 Amp DC/DC Converters

Single Output LSN-W3 Models
Non-Isolated, 3-5.5VIN, 0.75-3.3VOUT
16 Amp DC/DC Converters
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For full details go to
www.murata-ps.com/rohs
FEATURES
Step-down, wide input buck regulators
for distributed 3-5V power architectures
3V to 5.5V wide-input range
0.75/1/1.2/1.5/1.8/2/2.5/3.3VOUT @ 1 6A
Non-isolated, fixed-frequency,
synchronous-rectifier topology
±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
UL/IEC/EN60950-1 certification pending
EMC compliant
Typical unit
PRODUCT OVERVIEW
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 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.
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
(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 efficiency 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.
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Typical topology is shown.
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Figure 1. Simplified Schematic
www.murata-ps.com
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MDC_LSN W3 Models.A01 Page 1 of 8