LSN-T10-D12J Datasheet, PDF (1/12 Pages) Murata Manufacturing Co., Ltd. – Single Adjustable Output, Non-isolated, 12Vin, 10A, SIP, DC/DC Converters

LSN-T/10-D12
Single Adjustable Output, Non-isolated, 12Vin, 10A, SIP, DC/DC Converters
Typical Units
High power density building blocks ideal for on-board
power-distribution schemes in which isolated 12V buses
deliver power to any number of non-isolated, step-down
buck regulators.
FEATURES
Step-down buck regulators for new distributed
12V power architectures
12V input (10-14V range)
0.75-5VOUT @10 Amps
Non-isolated, fixed-frequency, synchronous-
rectifier topology
Outstanding performance:
• Efficiencies to 96.5% @ 10 Amps
• Low noise
• Stable no-load operation
• Adjustable output voltage
Remote on/off control
Sense pin on standard models
Thermal shutdown
No derating to +85°C with 100 lfm
UL/IEC/EN60950 applied for
EMC compliant
Start up into pre-biased Load
PRODUCT OVERVIEW
LSN D12 DC/DC's accept a 12V input (10-14V input
range) and convert it, with the highest efficiency in
the smallest space, to a 0.75 to 5 Volt output fully
rated at 10 Amps. The output is user-adjustable by
trim resistor or adjustment voltage.
LSN D12's are ideal point-of-use/load power
processors. They typically require no external
components. Their vertical-mount packages
occupy a mere 0.7 square inches (4.5 sq. cm),
and reversed pin vertical mount allows mounting
to meet competitor's keep out area. Horizontal-
mount packages ("H" suffix) are only 0.35 inches
(8.89mm) high.
The LSN's best-in-class power density is achieved
with a fully synchronous, fixed-frequency, buck
topology that also delivers: high efficiency (96.5%
for 5VOUT models), low noise (35mVp-p typ.), tight
line/load regulation, quick step response (50μsec),
stable no-load operation, and no output reverse
conduction.
The fully functional LSN’s feature output
overcurrent detection, continuous short-circuit
protection, an output-voltage trim function, a
remote on/off control pin, thermal shutdown and a
sense pin. High efficiency enables, the LSN D12's to
deliver rated output currents of 10 Amps at ambient
temperatures to +85°C with natural convection.
If your new system boards call for three or more
supply voltages, check out the economics of
on-board 12V distributed power. If you don't need
to pay for multiple isolation barriers, Datel non-
isolated LSN D12 SIP's will save you money.
SIMPLIFIED SCHEMATIC
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For devices with the sense-pin removed ("B" suffix), the feedback path is through the +Output pin and not the +Sense pin.
Typical topology is shown
www.murata-ps.com
Technical enquiries email: [e-mail], tel: [phone]
LSN-T10-D12.B01 Page 1 of 12