LSN-1.2/16-W3H-C Murata Power Solutions Inc, LSN-1.2/16-W3H-C Datasheet - Page 3

• Manufacturer Part Number: LSN-1.2/16-W3H-C
• Description: DC/DC TH 16A W3-1.2V H Non-Iso
• Manufacturer: Murata Power Solutions Inc
• Series: LSNr

Specifications of LSN-1.2/16-W3H-C

• Product: Non-Isolated / POL
• Output Power: 19 W
• Input Voltage Range: 3 V to 5.5 V
• Input Voltage (nominal): 5 V
• Number Of Outputs: 1
• Output Voltage (channel 1): 1.2 V
• Output Current (channel 1): 16 A
• Package / Case Size: SIP
• Output Type: Low Voltage Reversed Pin
• Output Voltage: 1.2 V
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Performance/Functional Specifi cations
Typical @ T
➀ All models are tested/specifi ed with external 22μF tantalum input and output capacitors. These
➁ See Technical Notes and Performance Curves for details.
Input Voltage Range
Input Current:
Input Refl ected Ripple Current ➁ ➅ 10-20mAp-p, model dependent
Input Filter Type
Overvoltage Protection
Reverse-Polarity Protection
Undervoltage Shutdown
On/Off Control ➁ ➂
V
Temperature Coeffi cient
Minimum Loading ➀
Maximum Capacitive Load
V
Ripple/Noise (20MHz BW) ➀ ➁ ➃
Total Accuracy
Effi ciency
Overcurrent Detection and Short-Circuit Protection: ➁
Transient Response (50% load step)
Start-Up Time: ➁
Switching Frequency
Calculated MTBF ➄
Operating Temperature: (Ambient) ➁
With Derating
PC-Board Temperature
Thermal Shutdown
Dimensions
Pin Dimensions/Material
Weight
Flamability Rating
EMI
Safety
capacitors are necessary to 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.
OUT
OUT
Normal Operating Conditions
Inrush Transient
Standby/Off Mode
Output Short-Circuit Condition ➁
Current-Limiting Detection Point
Short-Circuit Detection Point
SC Protection Technique
Short-Circuit Current
V
Without Derating (Natural convection) –40 to +63/71°C (model dependent,
IN
Trim Range
Accuracy (50% load)
to V
A
= +25°C under nominal line voltage and full-load conditions unless noted.
OUT
and On/Off to V
OUT
Dynamic Characteristics
Environmental
Physical
Output
Input
3-5.5 Volts (5V nominal) ➇
See Ordering Guide
0.02A
8mA
60-110mA average (model dependent)
Capacitive
None
None. Install external fuse.
None
On = open or low (<0.4V max.)
Off = high (>2.5V to V
±1.5% ➆
No load
5000μF (electrolytic),
2000μF (0.02: ESR, OSCON)
±10%
See Ordering Guide
3% over line/load/temperature
See Ordering Guide
20-36 Amps (model dependent)
98% of V
Hiccup with auto recovery
600mA average
30-70μsec to ±2% of fi nal value
(model dependent)
7msec
TBD
see Derating Curves)
See Derating Curves
+100°C maximum
+115°C (110 to 125°C)
See Mechanical Specifi cations
0.112" x 0.062" (2.84 x 1.57mm) rectangular
tellurium copper alloy with 100-300
microinches of tin electroplate over
100 microinches of nickel underplate
0.28 ounces (7.8g)
UL94V-0
EN55022/CISPR22 (requires external fi lter)
UL/cUL/IEC/EN 60950-1, CSA-C22.2 No.234
±0.02%/°C
300 ±50kHz
2
sec
OUT
set
IN
max.), 1mA
www.murata-ps.com
➀
➂ The On/Off Control is designed to be driven with open-collector logic or the application of appropriate
➃ Output noise may be further reduced with the installation of additional external output fi ltering. See
➄ MTBF’s are calculated using Telcordia SR-332(Bellcore), ground fi xed, T
➅ Input Ripple Current is tested/specifi ed over a 5-20MHz bandwidth with an external 2 x 100μF input
➆ Setting accuracy for LSN-T/16-W3 is ±2%.
➇ Input voltage must be 4.5V minimum for 3.3V output.
I/O Filtering and Noise Reduction
All models in the LSN W3 Series are tested and specifi ed with external 22μF
tantalum input and output capacitors. These capacitors are necessary to
accommodate our test equipment and may not be required to achieve desired
performance in your application. The LSN’s are designed with high-quality,
high-performance internal I/O caps, and will operate within spec in most
applications with no additional external components.
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.
fi ltering techniques, the simplest being the installation of external I/O caps.
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 appropri-
ate 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 imped-
ances can greatly affect system stability. Your specifi c system confi guration
may necessitate additional considerations.
voltages (referenced to Common, pin 3). Applying a voltage to On/Off Control when no input voltage is
applied to the converter may cause permanent damage.
I/O Filtering and Noise Reduction.
natural convection, +67°C pcb temperature.
capacitor and a simulated source impedance of 1000μF and 1μH. See I/O Filtering, Input Ripple
Current, and Output Noise for details.
In particular, the LSN’s input capacitors are specifi ed for low ESR and are
In critical applications, input/output ripple/noise may be further reduced using
External input capacitors serve primarily as energy-storage devices. They
Input Voltage:
On/Off Control (Pin 1)
Input Reverse-Polarity Protection
Output Overvoltage Protection
Output Current
Storage Temperature
Lead Temperature
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.
TECHNICAL NOTES
Single Output LSN-W3 Models
Continuous or transient
Non-Isolated, 3-5.5V
Absolute Maximum Ratings
10 Dec 2009
6 Volts (0.75, 1, 1.2, 1.5, 1.8, 2, 2.5 V
7 Volts (3.3V
+V
None. Install external fuse.
None
Current limited. Devices can withstand
sustained output short circuits without
damage.
–40 to +125°C
See Refl ow Solder Profi le
16 Amp DC/DC Converters
IN
MDC_LSN W3 Models.A02 Page 3 of 8
email: [e-mail]
OUT
and "T" models)
IN
A
= +25°C, full power,
, 0.75-3.3V
OUT)
OUT