LSN-2.5/10-D3BJ-C Murata Power Solutions Inc, LSN-2.5/10-D3BJ-C Datasheet

DC/DC TH 10A 3-2.5V NS RPV Non-Iso

LSN-2.5/10-D3BJ-C

Manufacturer Part Number
LSN-2.5/10-D3BJ-C
Description
DC/DC TH 10A 3-2.5V NS RPV Non-Iso
Manufacturer
Murata Power Solutions Inc
Series
LSNr
Datasheet

Specifications of LSN-2.5/10-D3BJ-C

Product
Non-Isolated / POL
Output Power
25 W
Input Voltage Range
3 V to 3.6 V
Input Voltage (nominal)
3.3 V
Number Of Outputs
1
Output Voltage (channel 1)
2.5 V
Output Current (channel 1)
10 A
Package / Case Size
SIP
Output Type
Low Voltage Reversed Pin
Output Voltage
2.5 V
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
www.murata-ps.com
Features
Industry-standard SIP pinout
Shorter (2.0" vs. 2.5") package length
3.0-3.6V input range
1/1.2/1.25/1.5/1.8/2/2.5V outputs @ 10A
Non-isolated, fully synchronous,
300kHz, buck topology
Outstanding performance:
x
x
x
x
x
Remote on/off and sense pins
Thermal Shutdown
No derating to +71°C, natural convection
UL/IEC/EN60950 certifi ed
EMC compliant
Trimmable output voltage
±1% setpoint accuracy
Effi ciencies to 94% @ 10 Amps
Noise as low as 10mVp-p
Stable no-load operation
CONTROL
COMMON
ON/OFF
www.murata-ps.com/rohs
+INPUT
(11)
(7,8)
(6)
For full details go to
 
Typical topology is shown
Typical Units
330μF
44μF
V
VOLTAGE
CC
BOOST
CONTROLLER
PWM
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.
Horizontal-mount packages ("H" suffi x) are only 0.34 inches (8.6mm) high.
fi xed-frequency (300kHz), buck topology that also delivers: high effi ciency (94% for
2.5V
max.), quick step response (100μsec), stable no-load operation, and no output
reverse conduction.
circuit protection, an output-voltage trim function, a remote on/off control pin
(pull high to disable), thermal shutdown, and a sense pin. High effi ciency enables the
LSN D3's to deliver rated output currents of 10 Amps at ambient temperatures to
+71°C with no air fl ow (natural convection).
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 certifi ed and EMC compliant. UL, CB,
HALT and EMC reports are available upon request.
Single Output, Non-Isolated, 3.3V
www.murata-ps.com
The miniature size of LSN D3's makes them ideal for true point-of-use power
The LSN's best-in-class power density is achieved with a fully synchronous,
The fully functional LSN’s feature output overcurrent detection, continuous short-
If your low-voltage, high-current requirements have made the use of ineffi cient
OUT
Figure 1. Simplifi ed Schematic
models), low noise (10mVp-p typ.), tight line/load regulation (±0.1%/±0.25%
CURRENT
non-isolated DC/DC converters that accept a 3.3V input (3.0V to 3.6V
input range) and deliver 1V, 1.2V, 1.25V, 1.5V, 1.8V, 2V or 2.5V out-
puts at 10 Amps. LSN D3 SIP’s are designed to take on-board 3.3V
power and convert it, with the highest effi ciency in the smallest space,
to any lower voltage required by today’s current-hungry DSP’s, ASIC’s
and CPLD’s.
NOT RECOMMENDED
SENSE
DATEL’s new LSN D3 Series SIP’s (single-in-line packages) are
FOR NEW DESIGNS
REFERENCE &
ERROR AMP
➀ For devices with the sense-pin removed ("B" suffi x),
IN
, 1-2.5V
the feedback path is through the +Output pin and not
the +Sense pin.
LSN-10A D3 Models
47.1μF
16 Dec 2009 MDC_LSN10A-D3.B03 Page 1 of 14
OUT,
10A, DC/DC's in SIP Packages
470μF
10.5Ω
email: sales@murata-ps.com
+OUTPUT
+SENSE
TRIM
COMMON
(10)
(1,2,4)
(3)
(5)

Related parts for LSN-2.5/10-D3BJ-C

LSN-2.5/10-D3BJ-C Summary of contents

Page 1

... High effi ciency enables the LSN D3's to deliver rated output currents of 10 Amps at ambient temperatures to +71°C with no air fl ow (natural convection). If your low-voltage, high-current requirements have made the use of ineffi cient linear regulators impractical, take a look at one of DATEL’ ...

Page 2

... Dimensions are in inches (mm shown for ref. only). Third Angle Projection Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 2˚ Components are shown for reference only. email: sales@murata-ps.com 16 Dec 2009 MDC_LSN10A-D3.B03 Page Package (Case, Pinout) B7/B7x, P59 91% B7/B7x, P59 91% ...

Page 3

... OUT I/O Filtering and Noise Reduction All models in the LSN D3 Series are tested and specifi ed with external 22μF input and output capacitors. These capacitors are necessary to accommodate our test equipment and may not be required to achieved desired performance in your application. The LSN D3's are designed with high-quality, high- performance internal I/O caps, and will operate within spec in most applica- tions with no additional external components ...

Page 4

... On/Off Control and Power-up Sequencing The On/Off Control pin may be used for remote on/off operation. LSN D3 SIP Series DC/DC's are designed so they are enabled when the control pin is left open (internal pull-down to Common) and disabled when the control pin is pulled high (+2 ...

Page 5

... COMMON Figure 2a. Inverting On/Off Control Pin Signal and Power-Up Sequencing For a controlled start-up of one or more LSN-D3' several output volt- ages need to be powered- given sequence, the On/Off Control pin can be pulled high (external pull-up resistor, converter disabled) and then driven low with an external open collector device to enable the converter ...

Page 6

... In all cases below, the DUT's were vertical-mount models, and the direction of air fl ow was parallel to the unit in the direction from pin 1 to pin 11. As you may deduce from the above curves and can observe in the effi ciency curves on the next page, LSN D3 SIP's are more effi cient at lower current levels. Also losses in the output inductor are signifi ...

Page 7

... Even a detailed mathemati- cal model may not get all aspects of your circuit. Therefore it is diffi cult to give cap values which serve all applications. Some experimentation may be required. www.murata-ps.com LSN-10A D3 Models 10A, DC/DC's in SIP Packages OUT, email: sales@murata-ps.com 16 Dec 2009 MDC_LSN10A-D3.B03 Page ...

Page 8

... Efficiency vs. Line Voltage and Load Current 100 110 www.murata-ps.com LSN-10A D3 Models , 1-2.5V 10A, DC/DC's in SIP Packages IN OUT, Natural Convection 100 lfm 200 lfm Ambient Temperature (° Load Current (Amps 3. 3. Load Current (Amps) email: sales@murata-ps.com 16 Dec 2009 MDC_LSN10A-D3.B03 Page 100 110 ...

Page 9

... Typical Performance Curves for LSN D3 SIP Series LSM-1.25/10-D3 Efficiency vs. Line Voltage and Load Current 3. 3. Load Current (Amps) LSM-1.5/10-D3 Efficiency vs. Line Voltage and Load Current 3. 3. Load Current (Amps) LSM-1.8/10-D3 Efficiency vs. Line Voltage and Load Current 3. 3. Load Current (Amps) Single Output, Non-Isolated, 3.3V LSM-2/10-D3 Efficiency vs ...

Page 10

... Typical Performance Curves for LSN D3 SIP Series Input Inrush Current (V = 3.3V, 4300μF as Input Switch ) IN 100μsec/div Input Reflected Ripple Current (V = 3.3V 2.5V/10A 220μ OUT IN OUT = 2μsec/div Input Reflected Ripple Current (V = 3.3V 2.5V/10A, Input Filter = 220μF/12μH/33μF, IN OUT C 220μ ...

Page 11

... Typical Performance Curves for LSN D3 SIP Series Output Ripple/Noise (V = 3.3V 2.5V, Full Load 220μF) IN OUT OUT 1μsec/div Output Ripple/Noise (V = 3.3V 2.5V, Full Load, No External Capacitor) IN OUT 1μsec/div Output Ripple/Noise (V = 3.3V 2.5V, No Load, No External Capacitor) IN OUT 1μsec/div Single Output, Non-Isolated, 3.3V , 1-2 ...

Page 12

... Typical Performance Curves for LSN D3 SIP Series Output Hiccup (V = 3.3V Short 70mA Average, IN OUT 400mA Average 220μF) OUT IN OUT 10msec/div Short-Circuit Output Current (V = 3.3V Short 70mA Average, IN OUT 400mA Average 220μF, Period = 25msec) OUT IN OUT 500μsec/div Single Output, Non-Isolated, 3.3V , 1-2 ...

Page 13

... you’re designing with EMC in mind, please note that all of DATEL’s LSN D3 DC/DC Converters have been characterized for conducted and radiated emissions in our EMI/EMC laboratory. Testing is conducted in an EMCO 5305 GTEM test cell utilizing EMCO automated EMC test software. Con- ducted/Radiated emissions are tested to the limits of FCC Part 15, Class B and CISPR 22 (EN 55022), Class B. Correlation to other specifi ...

Page 14

... Reversed pin vertical mounting ("J" suffi x) This additional mechanical confi guration consists of a low-profi le pin header attached to the reverse side of the converter. It allows the LSN series to be mechanically compatible with Tyco's "keep out area." Other Options and Modifi cations Other options include a positive polarity (pull low to disable) on the On/Off Control ...

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