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Murata Manufacturing Electronic Components Datasheet

OKI-T-3-W40P-C Datasheet

Adjustable Output 3-Amp DOSA-SMT DC/DC Converters

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www.murata-ps.com
OKI-T/3-W40 Series
Adjustable Output 3-Amp DOSA-SMT DC/DC Converters
Typical unit
FEATURES
Non-isolated SMT POL DC/DC power module
16-40Vdc input voltage range
Programmable output voltage from 0.7525-5.5Vdc
3 Amp output current models
Drives 1000 μF ceramic capacitive loads
High power conversion efficiency 86% at 5 Vout
Outstanding thermal derating performance
Over temperature and over current protection
On/Off control
UL/EN/IEC 60950-1 safety, 2nd Edition
Industry-standard (DOSA) surface-mount package
RoHS-6 hazardous substance compliance
PRODUCT OVERVIEW
The OKI-T/3 series are non-isolated Point-of-
Load (POL) DC/DC power converters for embedded
applications. The module is fully compatible with
Distributed-power Open Standards Alliance (DOSA)
industry-standard specifications (www.dosapower.
com). Applications include powering CPU’s, indus-
trial 24V transducers and POS terminals.
The wide input range is 16 to 40 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, over-
current and over temperature protections.
These units are designed to meet 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
Figure 1. OKI-T/3
Note: Murata Power Solutions strongly recommends an external input fuse, F1.
See specifications.
+Vout
Trim
Common
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
MDC_OKI-T/3-W40 Series.A08 Page 1 of 13


Murata Manufacturing Electronic Components Datasheet

OKI-T-3-W40P-C Datasheet

Adjustable Output 3-Amp DOSA-SMT DC/DC Converters

No Preview Available !

OKI-T/3-W40 Series
Adjustable Output 3-Amp DOSA-SMT DC/DC Converters
Performance Specifications Summary and Ordering Guide
ORDERING GUIDE
Output
Input
Package, C72
Root Model
IOUT R/N (mVp-p) Regulation (Max.)
IIN, IIN,
VOUT (Amps Power
VIN Nom. Range no load full load
(Volts) max) (Watts)
Max.
Line Load (Volts) (Volts) (mA) (Amps)
Efficiency
Min. Typ.
Case C72
Pinout
OKI-T/3-W40N-C 0.7525-5.5 3
15
20
±0.2% ±0.25% 24
16-40
40
0.71
86.5%
88%
0.82 x 0.47 x 0.34
(20.8 x 11.9 x 8.5)
P78
OKI-T/3-W40P-C 0.7525-5.5 3
15
20
±0.2% ±0.25% 24
16-40
40
0.71
86.5%
88%
0.82 x 0.47 x 0.34
(20.8 x 11.9 x 8.5)
P78
Dimensions are in inches (mm).
These are partial model numbers. Please refer to the part number structure for complete ordering part numbers.
All specifications are at nominal line voltage, Vout=nominal (5V for W40 models) and full load, +25 ˚C. unless
otherwise noted.
Output capacitors are 1 μF ceramic and 10 μF electrolytic in parallel. Input cap is 22 μF. See detailed specifications.
I/O caps are necessary for our test equipment and may not be needed for your application.
PART NUMBER STRUCTURE
Ripple/Noise is shown at Vout = 1V.
No load input current is shown at Vout = 0.75V.
For Vout = 1V, Vin ≤ 32V. For Vout = 0.75V, Vin ≤ 24V.
OK I - T / 3 - W40 N - C
Okami Non-isolated PoL
Surface Mount
Trimmable Output
Voltage Range
0.7525-5.5V
Maximum Rated Output
Current in Amps
RoHS Hazardous
Substance Compliance
C = RoHS-6 (does not claim EU RoHS exemption
7b–lead in solder)
On/Off Logic
P = Positive Logic
N = Negative Logic
Input Voltage Range
16-40V
Note: Some model number combinations
may not be available. Contact Murata
Power Solutions for availability.
Product Label
Because of the small size of these products, the product label contains a
character-reduced code to indicate the model number and manufacturing date
code. Not all items on the label are always used. Please note that the label dif-
fers from the product photograph on page 1. Here is the layout of the label:
Mfg.
XXXXXX
Product code
date YMDX Rev. Revision level
code
Figure 2. Label Artwork Layout
The label contains three rows of information:
First row – Murata Power Solutions logo
Second row – Model number product code (see table)
Third row – Manufacturing date code and revision level
Model Number
OKI-T/3-W40N-C
OKI-T/3-W40P-C
Product Code
I00103
I01103
The manufacturing date code is four characters:
First character – Last digit of manufacturing year, example 2009
Second character – Month code (1 through 9 and O through D)
Third character – Day code (1 through 9 = 1 to 9, 10 = O and
11 through 31 = A through Z)
Fourth character – Manufacturing information
www.murata-ps.com/support
MDC_OKI-T/3-W40 Series.A08 Page 2 of 13


Part Number OKI-T-3-W40P-C
Description Adjustable Output 3-Amp DOSA-SMT DC/DC Converters
Maker Murata
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