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What is OKI-T-3-W40N-C?

This electronic component, produced by the manufacturer "Murata", performs the same function as "Adjustable Output 3-Amp DOSA-SMT DC/DC Converters".


OKI-T-3-W40N-C Datasheet PDF - Murata

Part Number OKI-T-3-W40N-C
Description Adjustable Output 3-Amp DOSA-SMT DC/DC Converters
Manufacturers Murata 
Logo Murata Logo 


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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

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OKI-T-3-W40N-C equivalent
OKI-T/3-W40 Series
Adjustable Output 3-Amp DOSA-SMT DC/DC Converters
PERFORMANCE DATA – OKI-T/3-W40
Efficiency vs. Line Voltage and Load Current @ +25°C
(VOUT = 5V)
95
90
85
VIN = 16V
80 VIN = 24V
VIN = 40V
75
70
65
60
0 0.5 1 1.5 2 2.5 3
Load Curre nt (Amps)
3.5
Output Ripple and Noise (Vin=24V, Vout=5V, Iout=3A, Cload=0, ScopeBW=100MHz)
Maximum Current Temperature Derating at Sea Level
(VIN= 24-40V, VOUT = 5V, transverse airflow, mounted on 10" x 10" PCB).
4
3
65 LFM
2
1
0
30 35 40 45 50 55 60 65 70 75 80 85
Ambient Temperature (ºC)
On/Off Enable Startup (Vin=24V, Vout=5V, Iout=3A, Cload=0)
Step Load Transient Response (Vin=24V, Vout=5V, Cload=0, Iout=1.5A to 3A)
Trace 2=Vout, 100 mV/div. Trace 4=Iout, 1A/div.
Step Load Transient Response (Vin=24V, Vout=5V, Cload=0, Iout=3A to 1.5A)
Trace 2=Vout, 100 mV/div. Trace 4=Iout, 1A/div.
www.murata-ps.com/support
MDC_OKI-T/3-W40 Series.A08 Page 5 of 13


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Part Details

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Information Total 13 Pages
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Part NumberDescriptionMFRS
OKI-T-3-W40N-CThe function is Adjustable Output 3-Amp DOSA-SMT DC/DC Converters. MurataMurata

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