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A SUBSIDIARY OF C&D TECHNOLOGIES
Single Output
LSN-10A D5 Models
Non-Isolated, 5VIN, 1-3.8VOUT
10 Amp DC/DC’s in SIP Packages
Features
■
Industry-standard SIP pinout
■
Shorter (2.0" vs. 2.5") package length
■
4.5-5.5V input range
■
1/1.2/1.5/1.8/2/2.5/3.3/3.8VOUT @ 10A
■
Non-isolated, fully synchronous,
300kHz, buck topology
■
Outstanding performance:
• ±1% setpoint accuracy
• Efficiencies to 95% @ 10 Amps
• Noise as low as 10mVp-p
• Stable no-load operation
•♥ Trimmable output voltage
■
Remote on/off and sense pins
■
Thermal shutdown
■
No derating to +71°C, natural convection
■
UL/IEC/EN60950 certified
■
EMC compliant
DATEL’s new LSN D5 Series SIP’s (single-in-line packages) are non-isolated
DC/DC converters that accept a 5V input (4.5V to 5.5V input range) and deliver
1V, 1.2V, 1.5V, 1.8V, 2V, 2.5, 3.3 or 3.8V outputs at 10 Amps. LSN D5 SIP’s take onboard 5V 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 miniature size of LSN D5's makes them ideal for true point-of-use power processing. Vertical-mount packages occupy a mere 0.7 square inches (440 sq. mm),
and they are available in industry-standard and Tyco-compatible pinout. Horizontalmount packages ("H" suffix) are only 0.34 inches (8.6mm) high.
The LSN's best-in-class power density is achieved with a fully synchronous,
fixed-frequency (300kHz), buck topology that also delivers: high efficiency (to 95%),
low noise (10mVp-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 LSN’s feature output overcurrent detection, continuous
short-circuit protection, an output-voltage trim function, a remote on/off control pin
(pull high to disable), thermal shutdown, and a sense pin. High efficiency enables
the LSN D5's to deliver rated output currents of 10 Amps at ambient temperatures to
+71°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
LSN SIP’s. All devices are UL/IEC/EN60950 certified and EMC compliant. UL, CB,
HALT and EMC reports are available upon request.
+OUTPUT
(1,2,4)
+INPUT
(7,8)
10.5Ω
220µF
44µF
47.1µF
(100.1µF)
470µF
(330µF)
➁
+SENSE ➀
(3)
➁
COMMON
(5)
COMMON
(6)
CURRENT
SENSE
VCC
ON/OFF
CONTROL
(11)
PWM
CONTROLLER
Figure 1. Simplified Schematic
REFERENCE &
ERROR AMP
TRIM
(10)
➀ For devices with the sense-pin removed ("B" suffix), the feedback path is
through the +Output pin and not the +Sense pin.
➁ Values in parenthesis for 3.3V models only.
DATEL, Inc., Mansfield, MA 02048 (USA) · Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 · Email: sales@datel.com · Internet: www.datel.com