DC/DC Converters. LSN2T16W3 Datasheet 

www.murataps.com
Typical Unit
FEATURES
■ Userselectable outputs: 0.755V
(D12 models) or 0.753.3V (W3 models)
■ 6, 10 or 16A maximum output current
■ Double lead free to RoHS standards
■ Selectable phased startup sequencing
and tracking
■ Wide range VIN 8.314V or 2.45.5V
■ Up to 52 Watts total output power
■ Very high efficiency up to 95%
■ Starts up into prebiased load
■ Fast settling, high di/dt IOUT slew rate
PRODUCT OVERVIEW
These miniature pointofload (POL) switch
ing DC/DC converters are ideal regulation and
supply elements for mixed voltage systems. Fully
compatible with the Distributedpower Open
Standards Alliance specification (www.dosa
power.com), LSN2’s can power CPU’s, program
mable logic and mixedvoltage systems with little
heat and low noise. A typical application uses a
master isolated 12 or 5Vdc supply and individual
LSN2 converters for local 1.8 and 3.3Vdc sup
plies. All system isolation resides in the central
supply, leaving lower cost POL regulation at the
load. The LSN2’s can deliver very high power (to
52 Watts) in a tiny area without heat sinking or
external components. They feature quick transient
response (to 25µsec) and very fast current slew
rates (to 20A/µsec).
Pb
Leadfree
construction/attach
LSN2 Series
Nonisolated, DOSASIP, 6/10/16A
SelectableOutput DC/DC Converters
ORDERING GUIDE SUMMARY
Model
Vout Range
LSN2T/6W3C
0.753.3V
LSN2T/6D12
0.755V
LSN2T/6D12C
0.755V
LSN2T/6D12G
0.755V
LSN2T/6D12GC
0.755V
LSN2T/6D12N
LSN2T/6D12NC
LSN2T/6D12NG
0.755V
0.755V
0.755V
LSN2T/6D12NGC
0.755V
LSN2T/10W3C
0.753.3V
LSN2T/10D12C
0.755V
LSN2T/16W3C
0.753.3V
LSN2T/16D12C
0.755V
Iout Range
06A
06A
06A
06A
06A
06A
06A
06A
06A
010A
010A
016A
016A
Vin Range
2.45.5V
8.314V
8.314V
8.314V
8.314V
8.314V
8.314V
8.314V
8.314V
2.45.5V
8.314V
2.45.5V
8.314V
Ripple/Noise
15mVpp
15mVpp
15mVpp
15mVpp
15mVpp
15mVpp
15mVpp
15mVpp
15mVpp
15mVpp
30mVpp
25mVpp
30mVpp
Efficiency
94%
93%
93%
93%
93%
93%
93%
93%
93%
95%
95%
95%
94%
INPUT CHARACTERISTICS
Parameter
Voltage Range
Current, full power
Undervoltage Shutdown
Short Circuit Current
Remote On/Off Control
OUTPUT CHARACTERISTICS
Parameter
Voltage
Current
Power Dissipation
Accuracy
Ripple & Noise
Line and Load Regulation
Overcurrent Protection
Overtemperature Protection
Efficiency (minimum)
Efficiency (typical)
Typ. @ 25°C, full load
2.45.5 or 8.314V
4.22 to 11.12A
Included
60mA
Positive or negative polarity
Notes
5V or 12V nominal models
Model dependent
With autorestart hysteresis
Output is short circuited
Default polarity is positive
Typ. @ 25°C, full load
0.753.3 or 0.755V
06, 010 or 016A
20, 33, 52W max.
±2% of VNOM
1575mVpp
±0.03%
Hiccup autorecovery
+115°C shutdown
9293%
9495%
Notes
User adjustable, model dependent
Three ranges, model dependent
Three values, model dependent
50% load
Model dependent
Continuous short circuit protection
Model dependent
Model dependent
GENERAL SPECIFICATIONS
Parameter
Transient Response
Operating Temperature Range
Safety (designed to meet)
EMI (designed to meet)
Typ. @ 25°C, full load
25μsec
–40 to +85°C
UL/IEC/EN 609501
FCC pt.15, class B
Notes
50% load step to 2% of final value
With 200 lfm airflow
And CSA C22.2No.234
May need external filter
MECHANICAL CHARACTERISTICS
6 Amp output models
0.50 x 1.00 x 0.275 inches (12.7 x 25.4 x 6.98 mm)
10 & 16 Amp models
0.50 x 2.00 x 0.32 inches (12.7 x 50.8 x 8.13 mm)
For full details go to
www.murataps.com/rohs
www.murataps.com/support
MDC_LSN2.D01∆ Page 1 of 15


LSN2 Series
Nonisolated, DOSASIP, 6/10/16A
SelectableOutput DC/DC Converters
PERFORMANCE SPECIFICATIONS AND ORDERING GUIDE
Output
Root Model
Vout
(Volts)
Iout
(Amps)
Power
(Watts)
R/N (mVpp)
Typ. Max.
LSN2T/6W3
0.753.3
6
19.8 25
40
LSN2T/6D12
0.755
6
30 15 25
LSN2T/10W3
0.753.3 10
33.0
15
25
LSN2T/10D12
0.755
10
50
30
75
LSN2T/16W3
0.753.3 16
52.8
25
50
LSN2T/16D12 0.755
16
80
30
75
LSN2T/30D12
0.85
30
150
Input
Regulation
Line Load
Vin Nom. Range Iin
(Volts) (Volts) (mA/A)
Efficiency
Min. Typ.
±0.075% ±0.055% 5
2.45.5 50/4.2 93.1% 94.3%
±0.3% ±0.3%
12
8.314 70/2.69 90%
93%
±0.3% ±0.3% 5 2.45.5 50/6.95 93% 95%
±0.3% ±0.3% 12 8.314 100/4.39 93% 95%
±0.3% ±0.3% 5 2.45.5 50/11.12 93% 95%
±0.3% ±0.3% 12 8.314 100/7.1 92% 94%
Please refer to the separate LSN2T/30 data sheet.
Package
(Case/
Pinout)
B12, P69
B12, P69
B11, P68
B11, P68
B11, P68
B11, P68
➀ Typical at Ta = +25°C under nominal line voltage and fullload conditions, unless noted. All models
are tested and specified with external 22µF tantalum input and output capacitors. These capacitors
are necessary to accommodate our test equipment and may not be required to achieve specified
performance in your applications. See I/O Filtering and Noise Reduction. “Nominal” output is 3.3V
(W3 models) or 5V (D12 models)
➁ Ripple/Noise (R/N) is tested/specified over a 20MHz bandwidth and may be reduced with external
filtering. See I/O Filtering and Noise Reduction for details.
➂ These devices have no minimumload requirements and will regulate under noload conditions. Regula
tion specifications describe the outputvoltage deviation as the line voltage or load is varied from its
nominal/midpoint value to either extreme.
➃ Nominal line voltage, noload/fullload conditions.
➄ VIN must be ≥0.5V greater than VOUT.
➅ LSN2TXXD12 efficiencies are shown at 5VOUT.
➆ These are not complete model numbers. Please refer to the Part Number Structure when ordering.
PART NUMBER STRUCTURE
L SN2  T / 16  D12 N G  C
Output Configuration:
L = Unipolar
Low Voltage
NonIsolated Throughhole
Nominal Output Voltage:
0.753.3 Volts (W3)
0.755 Volts (D12)
RoHS6 hazardous substance compliant
Power Good Output:
Blank = Omitted
G = Installed
On/Off Polarity:
Blank = Positive polarity
N = Negative polarity
➂ These devices have no minimumload requirements and will regu
late under noload conditions. Regulation specifications describe
the outputvoltage deviation as the line voltage or load is varied
from its nominal/midpoint value to either extreme.
➃ Nominal line voltage, noload/fullload conditions.
➄ VIN must be ≥0.5V greater than VOUT.
➅ LSN2TXXD12 efficiencies are shown at 5VOUT.
➆ These are not complete model numbers. Please refer to the
Part Number Structure when ordering.
Maximum Rated Output:
Current in Amps
Input Voltage Range:
D12 = 8.314 Volts (12V nominal)
W3 = 2.45.5 Volts (5V nominal)
Note:
Some model number combinations may
not be available. Contact Murata Power
Solutions for further information.
www.murataps.com/support
MDC_LSN2.D01∆ Page 2 of 15

Performance/Functional Specifications(1)
INPUT
Input Voltage Range
Isolation
StartUp Threshold
W3 Models
12V Models
See Ordering Guide
Not isolated, input and output commons
are internally connected
2.2 Volts
8 Volts
Undervoltage Shutdown
W3 Models
12V Models
2.0 Volts
7.5 Volts
Overvoltage Shutdown
None
Reflected (Back) Ripple Current(2)
1070mApp (model dependent)
Internal Input Filter Type
Capacitive
Reverse Polarity Protection
Input Current:
Full Load Conditions
Inrush Transient
Shutdown Mode (Off, UV, OT)
Output Short Circuit
No Load
W3 models
12V models
Low Line (Vin = Vmin)
LSN2T/6W3
LSN2T/6D12
LSN2T/10W3
LSN2T/10D12
LSN2T/16W3
LSN2T/16D12
Remote On/Off Control: (5)
Positive Logic (no model suffix)
Negative Logic (“N” model suffix)
Current
See fuse information
See Ordering Guide
0.1A2sec
5mA
60mA
50mA
100mA
5.54 Amps
3.85 Amps
9.14 Amps
6.31 Amps
14.63 Amps
10.2 Amps
OFF = ground pin to +0.8V max.
ON = open pin or +2.5V min. to +Vin max.
ON = open pin to +0.3V max.
OFF = +2.5V min. to +Vin max.
1mA max.
OUTPUT
Voltage Output Range
See Ordering Guide
Minimum Loading
No minimum load
Accuracy (50% load)
Voltage Adjustment Range (13)
±2% of Vnom
See Ordering Guide
Temperature Coefficient
±0.02% of Vout range per °C
Ripple/Noise (20 MHz bandwidth)
See Ordering Guide and (8)
Line/Load Regulation (See Tech Notes) See Ordering Guide and (10)
Efficiency
Maximum Capacitive Loading: (15)
LSN2T/6 models:
CapESR = 0.001 to 0.01W
CapESR >0.01W
LSN2T/10 and T/16 models:
CapESR = 0.001 to 0.01W
CapESR >0.01W
See Ordering Guide
3000µF
5000µF
5000µF
10,000µF
LSN2 Series
Nonisolated, DOSASIP, 6/10/16A
SelectableOutput DC/DC Converters
Current Limit Inception: (98% of Vout)
LSN2T/6 models
1113 Amps (cold startup)
11 Amps (after warm up)
LSN2T/10 models
18.75 Amps (cold startup)
16.75 Amps (after warm up)
LSN2T/16 models
24 Amps (cold startup)
21 Amps (after warm up)
Short Circuit Mode (6)
Short Circuit Current Output
Protection Method (17)
Short Circuit Duration
Prebias Startup (16)
Sequencing
Slew Rate
Startup delay until sequence start
Tracking accuracy, rising input
Tracking accuracy, falling input
Sequence pin input impedance
Remote Sense to Vout
Power Good Output (14)
(“G” suffix)
Power_Good Configuration
600mA
Hiccup autorecovery on overload removal
Continuous, no damage (output shorted
to ground)
Converter will start up if the external
output voltage is less than Vnom
2V max. per millisecond
10 milliseconds
Vout = ±100mV of Sequence In
Vout = ±200mV of Sequence In
400kW to 1MW
0.5V max. (7)
TRUE (OK) = open drain
FALSE (not OK) = Signal Ground to 0.4V
MOSFET to ground with external user
pullup, 10mA max. sink
DYNAMIC CHARACTERISTICS
Dynamic Load Response
25µsec to ±2% of final value
(5010050% load step, di/dt = 20A/msec)
StartUp Time
47msec for Vout = nominal
(Vin on to Vout regulated or On/Off to Vout)
Switching Frequency
LSN2T/6 models
LSN2T/10 and T/16 models
315kHz
230kHz
ENVIRONMENTAL
Calculated MTBF (4)
TBC Hours
Operating Temperature Range (Ambient)
No derating, natural convection
–40 to +63°C, vertical mount, 2.5Vout (9)
With derating
Operating PC Board Temperature
See Derating Curves
–40 to +100°C max. (12)
Storage Temperature Range
–55 to +125°C
Thermal Protection/Shutdown
Relative Humidity
+115°C
To +85% / +85°C
PHYSICAL
Outline Dimensions
Removable Heat Shield
Pin Material
Weight
Electromagnetic Interference
(conducted and radiated)
Safety
Flammability Rating
See Mechanical Specifications
Nylon 46
Tinplated copper alloy
0.28 ounces (7.8 grams)
FCC part 15, class B, EN55022
(may need external filter)
UL/cUL 609501, CSAC22.2 No.234
IEC/EN 609501
UL94V0
www.murataps.com/support
MDC_LSN2.D01∆ Page 3 of 15

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