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参数资料
| 型号： | LSM-1.2/10-D3-C |
| 厂商： | MURATA POWER SOLUTIONS INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT, SMT-6 |
| 文件页数： | 1/13页 |
| 文件大小： | 488K |
| 代理商： | LSM-1.2/10-D3-C |
Typical Unit
+INPUT
(2)
COMMON
(3)
PWM
CONTROLLER
CURRENT
SENSE
REFERENCE &
ERROR AMP
VCC
ON/OFF
CONTROL
(1)
VOUT
TRIM
(5)
+OUTPUT
(4)
+SENSE
(6)
COMMON
(3)
Features
Figure 1. Simplified Schematic
DATEL's LSM D3 Series for SMT (surface-mount) are non-isolated DC/DC
converters that accept a 3.3V input (3.0V to 3.6V input range) and deliver 1V, 1.2V,
1.5V, 1.8V, 2V or 2.5V outputs at 10 Amps. LSM D3 SMT's are designed to take on-
board 3.3V power and convert it, with the highest efficiency in the smallest space, to
any lower voltage required by today's current-hungry DSP's, ASIC's and CPLD's.
The LSM D3's miniature size makes them ideal for true point-of-use/load power
processing. They occupy a mere 0.7 square inches (4.5 cm2) and are only 0.34
inches (8.64 mm) high. The SMT package is designed for pick and place including
lead free reflow soldering, and they typically require no additional external compo-
nents.
The LSM's best-in-class power density is achieved with a fully synchronous,
fixed-frequency (300kHz), buck topology that also delivers: high efficiency (94% for
2.5VOUT models), low noise (30mVp-p typ.), tight line/load regulation (±0.1%/±0.25%
max.), quick step response (100μsec), stable no-load operation, and no output
reverse conduction.
The fully functional LSM's feature output overcurrent detection, continuous short-
circuit and over-temperature protection, an output-voltage trim function, a remote on/
off control pin (pull low to disable), and a sense pin. High efficiency enables the LSM
D3's to deliver rated output currents of 10 Amps at ambient temperatures to +70°C
with no air flow (natural convection).
If your low-voltage, high-current requirements have made the use of inefficient
linear regulators impractical, take a look at one of DATEL's easy-to-use, low-cost
LSM SMT's (or equivalent LSN SIP's). All devices are UL/IEC/EN60950 certified and
EMC compliant. UL, CB, HALT and EMC reports are available upon request.
Step-down buck regulators with
industry-standard SMT footprint
3.3V input (3.0-3.6V range)
0.8/1/1.2/1.5/1.8/2/2.5VOUT @10A
Non-isolated, fixed-frequency,
synchronous-rectifier topology
Tape and reel SMT package
±1% setpoint accuracy
Efficiencies to 94% @ 10 Amps
Noise as low as 30mVp-p
Stable no-load operation
Remote on/off control
Sense pin and output voltage trim
Thermal shutdown
No derating to +70°C, natural convection
UL/IEC/EN60950 certified
EMC compliant
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
LSM-10A D3 Models
Single Output, Non-Isolated, 3.3VIN, 0.8-2.5VOUT
10 Amp DC/DC’s in SMT Packages
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_LSM-10A D3.B01 Page 1 of 13
NOT RECOMMENDED
FOR NEW DESIGNS
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