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PDF OKL-T-3-W12P-C-S Data sheet ( Hoja de datos )
| Número de pieza | OKL-T-3-W12P-C-S | |
| Descripción | Programmable Output 3-Amp iLGA SMT PoLs | |
| Fabricantes | Murata | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de OKL-T-3-W12P-C-S (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
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www.murata-ps.com
OKL-T/3-W12 Series
Programmable Output 3-Amp iLGA SMT PoLs
Typical unit
FEATURES
iLGA inspectable Land Grid Array
4.5-14Vdc input voltage range
Programmable output voltage from 0.591-5.5Vdc
Drives up to 200 μF ceramic capacitive loads
High power conversion efficiency at 93%
Outstanding thermal derating performance
Short circuit and over current protection
On/Off control and Power Good signal
Optional Sequence/Tracking operation
(OKL2-T/3-W12 models)
Certified to UL/EN/IEC 60950-1 safety, 2nd Edition
RoHS-6 hazardous substance compliance
PRODUCT OVERVIEW
The OKL-T/3-W12 series are miniature
non-isolated Point-of-Load (PoL) DC/DC power
converters for embedded applications. Featuring
inspectable Land Grid Array (iLGA) format, the
OKL-T/3-W12 measures only 0.48 x 0.48 x 0.244
inches max. (12.2 x 12.2 x 6.2 mm max.).
The wide input range is 4.5 to 14 Volts DC.
The maximum output current is 3 Amps. Based
on fixed-frequency synchronous buck converter
switching topology, the high power conversion
efficient Point of Load (PoL) module features
programmable output voltage and On/Off control.
These converters also include under voltage lock
out (UVLO), output short circuit protection, and
over-current protections.
An optional sequence/tracking feature on
OKL2-T/3-W12 models allows power sequencing of
PoL’s. These units are certified to all standard UL/EN/
IEC 60950-1 safety certifications (2nd Edition) and
RoHS-6 hazardous substance compliance.
Connection Diagram
+Vin
F1
On/Off
Control
External
DC
Power
Source
Open = On
Closed = Off
(Positive
On/Off)
Controller
t4XJUDIJOH
t'JMUFST
t$VSSFOU4FOTF
Reference and
Error Amplifier
Common
Sequence/Tracking
(OKL2 Models)
Power Good
Figure 1. OKL-T/3-W12
Note: Murata Power Solutions strongly recommends an external input fuse, F1.
See specifications.
+Vout
Sense
Trim
Common
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
MDC_OKL-T/3-W12 Series.C01 Page 1 of 17
1 page  
OKL-T/3-W12 Series
Programmable Output 3-Amp iLGA SMT PoLs
OKL-T/3-W12 PERFORMANCE DATA AND OSCILLOGRAMS
OKL2-T/3-W12 Efficiency vs. Line Voltage and Load Current +25 ˚C
(Vout = 5V)
100
OKL-T/3-W12 Maximum Current Temperature Derating at Sea Level
(VIN = 12V, VOUT = 5V)
3.5
95
3.0
90 Natural convection
2.5 100 LFM
85
2.0
VIN = 6V
80
VIN = 12V
1.5
VIN = 14V
75 1.0
70 0.5
65
0
12
Load Curre nt (Amps)
0.0
3 20 30 40 50 60 70 80
Ambient Temperature (ºC)
90
On/Off Enable Startup Delay (Vin=12V, Vout=5.0V, Iout=3A, Cload=0)
Trace 4=Enable In, Trace2=Vout
Output Ripple and Noise (Vin=12V, Vout=5.0V, Iout=3A, Cload=0, ScopeBW=20MHz)
Step Load Transient Response (Vin=12V, Vout=5.0V, Cload=0, Iout=1.5A to 3A)
Trace 2=Vout, 100 mV/div. Trace 4=Iout, 2.5A/div.
Step Load Transient Response (Vin=12V, Vout=5.0V, Cload=0, Iout=3A to 1.5A)
Trace 2=Vout, 100 mV/div. Trace 4=Iout, 2.5A/div.
www.murata-ps.com/support
MDC_OKL-T/3-W12 Series.C01 Page 5 of 17
5 Page 
OKL-T/3-W12 Series
Programmable Output 3-Amp iLGA SMT PoLs
MECHANICAL SPECIFICATIONS
0.48
(12.19)
0.244
(6.2)
max.
Top View
0.48
(12.19)
0.043 (1.09)
NOM. PCB
THK
Bottom View
Side View
INPUT/OUTPUT CONNECTIONS
Pin Function
1 On/Off Control*
2 VIN
3 Ground
4 VOUT
5 Sense
6 Trim
7 Ground
8 No Connection
9 Sequence/Tracking†
10 Power Good out
11 No Connection
12 No Connection
End View
*The Remote On/Off can be provided with
either positive (P suffix) or negative (N
suffix) logic
† OKL2 Models
SOLDER PAD NOTES:
[1] To avoid incorrect contacts with exposed via’s and plated through holes on the bottom of the converter, do not have any
exposed copper around the unit aside from our recommended footprint. Except for connections to the pads, keep all external
circuits away from the board edges.
[2] Do not connect any additional components between the Trim pin and Vout or between the Trim and Sense pins. Use only
the specified connections.
Bottom View
Recommended Footprint
-through the Board-
4 32
12.7
0.50
3.43
0.135
2
4.57
0.180
1.14
0.045
34
0.070-0.080 [1.78-2.03mm]
x
0.160-0.170 [4.06-4.32mm]
3 PLACES
1.27
0.050(14 PLS)
0.420 (10.67)
0.375 (9.53)
0.240 (6.10)
0.150 (3.81)
0.060 (1.52)
0
Gnd Vin
5 Sense
On/Off
1
11 NC
PGood
10
6 Trim NC Gnd NC Seq
9
12 7 8
Dimensions are in inches (mm shown for ref. only).
Third Angle Projection
4.57
0.180
12.7
1
0.50 2.29
0.090 10
Vin
On/Off
PG
NC
9 Seq
8
2.29
0.090
4.57
0.180
Gnd
Sense
NC
Gnd NC Trim1
7 12
2.29
0.090
CL
3.43 12.40
5 0.135 0.488
CL
11 4.57
0.180
6
0.040-0.050 [1.02-1.27mm]
SQUARE PAD (9 PLS)
Copper Pads
Tolerances (unless otherwise specified):
.XX ± 0.02 (0.5)
.XXX ± 0.010 (0.25)
Angles ± 1˚
Components are shown for reference only.
Plating Thickness:
Gold overplate 1.18μ" (0.03μm)
on Nickel subplate 118.1μ" (3.0μm)
Figure 3. OKL-T/3-W12 Mechanical Outline
12.40
0.488
No Exposed
Copper
Permitted
www.murata-ps.com/support
MDC_OKL-T/3-W12 Series.C01 Page 11 of 17
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet OKL-T-3-W12P-C-S.PDF ] | |
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