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參數資料
| 型號： | LQN-1/50-D12 |
| 廠商： | MURATA POWER SOLUTIONS INC |
| 元件分類： | 電源模塊 |
| 英文描述： | DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT PACKAGE-10 |
| 文件頁數： | 1/14頁 |
| 文件大小： | 1683K |
| 代理商： | LQN-1/50-D12 |
Figure 1. Simplified Schematic
Only one phase of three shown.
Typical unit
Typical topology is shown.
The LQN D12 Series of non-isolated quarter bricks
are ideal building blocks for emerging, on-board
power-distribution schemes in which isolated 12V
buses deliver power to any number of non-isolated,
step-down buck regulators. LQN D12 DC/DCs
accept a 12V input (10.2V to 13.8V input range) and
convert it, with the highest efficiency in the smallest
space, to a 0.8, 1, 1.2, 1.5, 1.8, 2, 2.5, 3.3 or 5 Volt
output fully rated at 45-50 Amps.
LQN D12s are ideal POLPPs (point-of-use/load
power processors) and they typically require no ex-
ternal components. They occupy the standard quarter
brick board space (1.45" x 2.3") and come in either
through-hole packages or surface-mount packages
with a profile of only 0.4" (0.5" including heatsink).
The LQNs best-in-class power density is
achieved with a fully synchronous, fixed-frequency,
3-phase buck topology that delivers extremely
high efficiency (95% for 5Vout models), low noise
(20mVp-p typ.), tight line/load regulation (±0.25%
max.), quick step response (70sec), stable no-load
operation, and no output reverse conduction.
The fully functional LQN's feature input over/
undervoltage lockout, output overvoltage and
overcurrent detection, continuous short-circuit
protection, overtemperature protection, an output-
voltage trim function, a remote on/off control pin,
and sense pin. High efficiency enables the LQN
D12s to deliver rated output currents of 50 Amps
at high ambient temperatures and minimal
air flow.
If your new system boards call for multiple
supply voltages, check out the economics of
on-board 12V distributed power. If you don't need
to pay for multiple isolation barriers, MPS's non-
isolated LQN D12 brick's will save you money.
FEATURES
n
3-phase buck regulators for new
distributed 12V power architectures
n
12V input (10.2-13.8V range)
n
0.8/1/1.2/1.5/1.8/2/2.5/3.3/5Vout
@ 45-50A
n
Non-isolated, fixed-frequency,
synchronous-rectifier topology
n
-brick size, through hole or SMT
n
±1% setpoint accuracy
n
Efficiencies to 93.5% @ 45 Amps
n Noise as low as 20mVp-p
n
Stable no-load operation
n
On/Off control, trim & sense functions
n
Output overvoltage protection
n
Input Over/Undervoltage lockout
n
Thermal shutdown
n
Designed to meet UL/IEC/EN60950-1
n
EMC compliant
PRODUCT OVERVIEW
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_LQN D12 Models.B03 Page 1 of 14
LQN D12 Models
Non-Isolated, Single Output, 12Vin, 0.8-5Vout
45-50 Amp, -Brick, DC/DC Converters
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