OKL-T/6-W5N-C Murata Power Solutions Inc, OKL-T/6-W5N-C Datasheet - Page 14

• Manufacturer Part Number: OKL-T/6-W5N-C
• Description: CONV DC/DC 19.8W 6A 5VIN SMD
• Manufacturer: Murata Power Solutions Inc
• Series: Okami™ OKL-T/6-W5r
• Type: Point of Load (POL) Non-Isolatedr

Specifications of OKL-T/6-W5N-C

• Number Of Outputs: 1
• Output: 0.6 ~ 3.3V
• Power (watts): 19.8W
• Mounting Type: Surface Mount
• Voltage - Input: 2.4 ~ 5.5 V
• Package / Case: 12-SMD Module
• 1st Output: 0.6 ~ 3.3 VDC @ 6A
• Size / Dimension: 0.48" L x 0.48" W x 0.28" H (12.2mm x 12.2mm x 7.1mm)
• Power (watts) - Rated: 19.8W
• Operating Temperature: -40°C ~ 85°C
• Efficiency: 93.5%
• Approvals: CSA, cUL, EN, IEC, UL
• Output Power: 19.8 W
• Input Voltage Range: 2.4 V to 5.5 V
• Input Voltage (nominal): 5 V
• Package / Case Size: 12.2 mm x 12.2 mm x7.2 mm
• Output Voltage: 0.6 V to 3.3 V
• Product: Non-Isolated / POL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 811-2213-2

Output Voltage Adustment
The output voltage may be adjusted over a limited range by connecting an
external trim resistor (Rtrim) between the Trim pin and Ground. The Rtrim
resistor must be a 1/10 Watt precision metal fi lm type, ±0.5% accuracy or
better with low temperature coeffi cient, ±100 ppm/
resistor close to the converter with very short leads or use a surface mount
trim resistor.
specifi ed limits of the output voltage or the converter’s maximum power
rating when applying these resistors. Also, avoid high noise at the Trim
input. However, to prevent instability, you should never connect any capaci-
tors to Trim.
Resistor Trim Equation, OKL-T/6-W5 models:
Input Fusing
Certain applications and/or safety agencies may require fuses at the inputs
of power conversion components. Fuses should also be used when there
is the possibility of sustained input voltage reversal which is not current-
limited. For greatest safety, we recommend a fast blow fuse installed in the
ungrounded input supply line.
For safety agency approvals, install the converter in compliance with the
end-user safety standard.
Input Under-Voltage Shutdown and Start-Up Threshold
Under normal start-up conditions, converters will not begin to regulate
properly until the rising input voltage exceeds and remains at the Start-Up
Threshold Voltage (see Specifi cations). Once operating, converters will not
turn off until the input voltage drops below the Under-Voltage Shutdown
Limit. Subsequent restart will not occur until the input voltage rises again
above the Start-Up Threshold. This built-in hysteresis prevents any unstable
on/off operation at a single input voltage.
Shutdown whose voltage decays as input current is consumed (such as
capacitor inputs), the converter shuts off and then restarts as the external
capacitor recharges. Such situations could oscillate. To prevent this, make
sure the operating input voltage is well above the UV Shutdown voltage AT
ALL TIMES.
Output Voltage
3.3 V.
2.5 V.
1.8 V.
1.5 V.
1.2 V.
1.0 V.
0.6 V.
R
In the table below, the calculated resistance is given. Do not exceed the
The installer must observe all relevant safety standards and regulations.
Users should be aware however of input sources near the Under-Voltage
TRIM
(K:) = ___________
V
OUT
1.2
– 0.6
TECHNICAL NOTES
Calculated Rtrim (KΩ)
0.444
0.632
1.0
1.333
2.0
3.0
∞ (open)
°
C. or better. Mount the
www.murata-ps.com
Start-Up Delay
Assuming that the output current is set at the rated maximum, the Vin to
Vout Start-Up Delay (see Specifi cations) is the time interval between the
point when the rising input voltage crosses the Start-Up Threshold and the
fully loaded regulated output voltage enters and remains within its specifi ed
regulation band. Actual measured times will vary with input source imped-
ance, external input capacitance, input voltage slew rate and fi nal value of
the input voltage as it appears at the converter.
the PWM controller at power up, thereby limiting the input inrush current.
assumes that the converter already has its input voltage stabilized above
the Start-Up Threshold before the On command. The interval is measured
from the On command until the output enters and remains within its
specifi ed accuracy band. The specifi cation assumes that the output is fully
loaded at maximum rated current.
Recommended Input Filtering
The user must assure that the input source has low AC impedance to
provide dynamic stability and that the input supply has little or no inductive
content, including long distributed wiring to a remote power supply. The
converter will operate with no additional external capacitance if these
conditions are met.
immediately adjacent to the converter’s input terminals. The capacitor
should be a ceramic type such as the Murata GRM32 series or a polymer
type. Initial suggested capacitor values are 10 to 22 μF, rated at twice the
expected maximum input voltage. Make sure that the input terminals do
not go below the undervoltage shutdown voltage at all times. More input
bulk capacitance may be added in parallel (either electrolytic or tantalum)
if needed.
Recommended Output Filtering
The converter will achieve its rated output ripple and noise with no
additional external capacitor. However, the user may install more exter-
nal output capacitance to reduce the ripple even further or for improved
dynamic response. Again, use low-ESR ceramic (Murata GRM32 series)
or polymer capacitors. Initial values of 10 to 47 μF may be tried, either
single or multiple capacitors in parallel. Mount these close to the converter.
Measure the output ripple under your load conditions.
noise objectives. Excessive capacitance can make step load recovery
sluggish or possibly introduce instability. Do not exceed the maximum rated
output capacitance listed in the specifi cations.
Input Ripple Current and Output Noise
All models in this converter series are tested and specifi ed for input
refl ected ripple current and output noise using designated external input/
output components, circuits and layout as shown in the fi gures below. The
Cbus and Lbus components simulate a typical DC voltage bus. Please note
that the values of Cin, Lbus and Cbus will vary according to the specifi c
converter model.
These converters include a soft start circuit to moderate the duty cycle of
The On/Off Remote Control interval from inception to Vout regulated
For best performance, we recommend installing a low-ESR capacitor
Use only as much capacitance as required to achieve your ripple and
Programmable Output 6-Amp iLGA SMT PoLs
09 May 2011 MDC_OKL-T/6-W5 Series.A08 Page 14 of 18
OKL-T/6-W5 Series
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