LSN-1.5/10-D3-C Murata Power Solutions Inc, LSN-1.5/10-D3-C Datasheet - Page 3

• Manufacturer Part Number: LSN-1.5/10-D3-C
• Description: DC/DC Converter
• Manufacturer: Murata Power Solutions Inc

Specifications of LSN-1.5/10-D3-C

• Dc / Dc Converter O/p Type: Fixed
• No. Of Outputs: 1
• Input Voltage: 3V To 3.6V
• Power Rating: 15W
• Output Voltage: 1.5V
• Output Current: 10A
• Approval Bodies: EN, IEC, UL
• Supply Voltage: 3V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Performance/Functional Specifi cations
Typical @ T
Input Voltage Range
Input Current:
Input Refl ected Ripple Current ➁
Input Filter Type
Overvoltage Protection
Reverse-Polarity Protection
Undervoltage Shutdown
Sense Range
On/Off Control ➁ ➂
V
Minimum Loading ➀
Maximum Capacitive Load
V
Ripple/Noise (20MHz BW) ➀ ➁ ➃
Temperature Coeffi cient
Total Accuracy
Effi ciency ➁
Overcurrent Detection and Short-Circuit Protection: ➁
Transient Response (50% load step)
Start-Up Time: ➁
Switching Frequency
MTBF ➄
Operating Temperature: (Ambient) ➁ –40 to +85°C with Derating
See Derating Curves
Thermal Shutdown
Dimensions
Pin Dimensions/Material
Weight
Flamability Rating
Safety
➀ All models are tested/specifi ed with external 22μF input/output capacitors.These caps
➁ See Technical Notes and Performance Curves for details.
➂ The On/Off Control (pin 11) is designed to be driven with open-collector logic or the appli-
➃ Output noise may be further reduced with the installation of additional external output
➄ Calculated using the Telcordia (Bellcore) SR-332 Method 1, Case 3, ground fi xed conditions,
OUT
OUT
Normal Operating Conditions
Inrush Transient
Standby/Off Mode
Output Short-Circuit Condition ➁
V
On/Off to V
Current-Limiting Detection Point
Short-Circuit Detection Point
SC Protection Technique
Short-Circuit Current
IN
accommodate our test equipment and may not be required to achieve specifi ed performance
in your applications. All models are stable and regulate within spec under no-load conditions.
cation of appropriate voltages (referenced to Common, pins 5 and 6).
fi ltering. See I/O Filtering and Noise Reduction.
T
A
Trim Range ➁
to V
Accuracy (50% load)
= +25°C, full load, natural convection, +55°C component temperature.
A
OUT
= +25°C under nominal line voltage and full-load conditions unless noted.
OUT
Dynamic Characteristics
Environmental
Physical
Output
Input
3.0 to 3.6 Volts (3.3V nominal)
See Ordering Guide
0.02A
3mA
70mA average
50mAp-p
Capacitive (374μF)
None
None, install external fuse
None
10% of V
On = open (internal pulldown)
Off = +2.8V to +V
±1% maximum
No load
10,000μF (electrolytic)
±10%
See Ordering Guide
±0.02%/°C
3% over line/load/temperature
See Ordering Guide
16 (12.5 to 22) Amps
98% of V
Hiccup with auto recovery
600mA average
100μsec to ±2% of fi nal value
7msec
6msec
300kHz (+40kHz, –50kHz)
2.1 million hours
+115°C
See Mechanical Specifi cations
0.03" (0.76mm) round copper alloy with
tin plate over nickel underplate
0.3 ounces (8.5g)
UL94V-0
UL/cUL/IEC/EN 60950-1, CSA-C22.2 No. 234
2
sec
OUT
OUT
set
IN
(<3mA)
Single Output, Non-Isolated, 3.3V
www.murata-ps.com
➀
Return Current Paths
The LSN D3 SIP’s are non-isolated DC/DC converters. Their two Common
pins (pins 5 and 6) are connected to each other internally (see Figure 1). To
the extent possible (with the intent of minimizing ground loops), input return
current should be directed through pin 6 (also referred to as –Input or
Input Return), and output return current should be directed through pin 5
(also referred to as –Output or Output Return). Any on/off control signals
applied to pin 11 (On/Off Control) should be referenced to Common
(specifi cally pin 6).
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.
In particular, the LSN D3's input capacitors are specifi ed for low ESR
and are fully rated to handle the units' input ripple currents. Similarly, the
internal output capacitors are specifi ed for low ESR and full-range frequency
response. As shown in the Performance Curves, removal of the external
output caps has minimal effect on output noise.
In critical applications, input/output ripple/noise may be further reduced using
fi ltering techniques, the simplest being the installation of external I/O caps.
External input capacitors serve primarily as energy-storage devices. They
minimize high-frequency variations in input voltage (usually caused by IR
drops in conductors leading to the DC/DC) as the switching converter draws
pulses of current. Input capacitors should be selected for bulk capacitance (at
appropriate frequencies), low ESR, and high rms-ripple-current ratings. The
switching nature of modern DC/DC's requires that the dc input voltage
source have low ac impedance at the frequencies of interest. Highly inductive
source impedances can greatly affect system stability. Your specifi c system
confi guration may necessitate additional considerations.
Output ripple/noise (also referred to as periodic and random deviations
or PARD) may be reduced below specifi ed limits with the installation of
additional external output capacitors. Output capacitors function as true fi lter
Input Voltage:
On/Off Control (Pin 11)
Input Reverse-Polarity Protection
Output Overvoltage Protection
Output Current
Storage Temperature
Lead Temperature (soldering, 10 sec.)
These are stress ratings. Exposure of devices to greater than any of these conditions may
adversely affect long-term reliability. Proper operation under conditions other than those
listed in the Performance/Functional Specifi cations Table is not implied.
T E C H N I C A L
Continuous or transient
IN
N O T E S
, 1-2.5V
Absolute Maximum Ratings
LSN-10A D3 Models
16 Dec 2009 MDC_LSN10A-D3.B03 Page 3 of 14
OUT,
10A, DC/DC's in SIP Packages
6 Volts
+V
None, install external fuse
None
Current limited. Devices can
withstand sustained output short
circuits without damage.
–40 to +125°C
+300°C
IN
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