OKI-T-3-W40P-C 반도체 회로 부품 판매점
Adjustable Output 3-Amp DOSA-SMT DC/DC Converters
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 Murata |
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
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 ➁
IOUT R/N (mVp-p) ➃ Regulation (Max.)
IIN, IIN,
VOUT (Amps Power
VIN Nom. Range no load full load
(Volts) ➅ max) (Watts)
Max.
Line Load (Volts) (Volts) ➅ (mA) ➄ (Amps)
Efficiency
Min. Typ.
Case C72 ➀
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
➀ Dimensions are in inches (mm).
➁ These are partial model numbers. Please refer to the part number structure for complete ordering part numbers.
➂ 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
➃ Ripple/Noise is shown at Vout = 1V.
➄ No load input current is shown at Vout = 0.75V.
➅ 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
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( murata )
OKI-T-3-W40P-C converter
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