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參數(shù)資料
| 型號： | LSM-1.5/10-D3 |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封裝： | SMT-6 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 619K |
| 代理商： | LSM-1.5/10-D3 |
+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)
Single Output
LSM-10A D3 Models
Features
Non-Isolated, 3.3VIN, 0.8-2.5VOUT
10 Amp DC/DC’s in SMT Packages
Figure 1. Simplied 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 efciency 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
reow soldering, and they typically require no additional external components.
The LSM's best-in-class power density is achieved with a fully synchronous,
xed-frequency (300kHz), buck topology that also delivers: high efciency (94% for
2.5VOUT models), low noise (30mVp-p typ.), tight line/load regulation (±0.1%/±0.25%
max.), quick step response (100sec), 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 efciency enables the
LSM D3's to deliver rated output currents of 10 Amps at ambient temperatures to
+70°C with no air ow (natural convection).
If your low-voltage, high-current requirements have made the use of inefcient
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 certied and
EMC compliant. UL, CB, HALT and EMC reports are available upon request.
INNOVATION and EXCELLENCE
■
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, xed-frequency,
synchronous-rectier topology
Tape and reel SMT package
±1% setpoint accuracy
Efciencies 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 certied
EMC compliant
DATEL, Inc., Manseld, MA 02048 (USA) Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 Email: sales@datel.com Internet: www.datel.com
For devices with the sense-pin removed ("B" sufx),
the feedback path is through the +Output pin and not
the +Sense pin.
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