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OKI-T3-W40 Datasheet, PDF (1/12 Pages) Murata Power Solutions Inc. – 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
PRELIMINARY
Typical unit
PRODUCT OVERVIEW
The OKI-T/3 series are miniature 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 speciï¬cations
(www.dosapower.com). Applications include
powering CPUâs, industrial 24V transducers and
POS terminals.
The wide input range is 16 to 40 Volts DC.
The maximum output current is 3 Amps. Based
on ï¬xed-frequency synchronous buck converter
switching topology, the high power conversion
efï¬cient 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 certiï¬cations and RoHS-6
hazardous substance compliance.
FEATURES
â Non-isolated SMT POL DC/DC power module
â 16-40Vdc input voltage range
â Programmable output voltage from 0.7525-5.5Vdc
â 3 Amp output current models
â Drives 1000 μF ceramic capacitive loads
â High power conversion efï¬ciency 86% at 5 Vout
â Outstanding thermal derating performance
â Over temperature and over current protection
â On/Off control
â UL/EN/IEC 60950-1 safety (pending)
â Industry-standard (DOSA) surface-mount package
â RoHS-6 hazardous substance compliance
Contents
Page
Description, Connection Diagram, Photograph
1
Ordering Guide, Model Numbering, Product Labeling
2
Mechanical Speciï¬cations, Input/Output Pinout
3
Detailed Electrical Speciï¬cations
4
Output Voltage Adjustment, Soldering Guidelines
5
Application Notes
6
Performance Data and Oscillograms
9
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 Ampliï¬er
Common
Figure 1. OKI-T/3
Note: Murata Power Solutions strongly recommends an external input fuse, F1.
See speciï¬cations.
+Vout
Trim
Common
Ḥ
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
email: sales@murata-ps.com
05 Nov 2009 MDC_OKI-T/3-W40 Series.A01_D8 Page 1 of 12
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