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OKI-T/3-W32 Series
Adjustable Output 3-Amp DOSA-SMT DC/DC Converters
Typical unit
PRODUCT OVERVIEW
?
?
? Non-isolated SMT POL DC/DC power module
? 9-32Vdc input voltage range
?
3
? Programmable output voltage from 0.7525-4.5Vdc
? ? Amp output current models
?
? Drives 1000 μF ceramic capacitive loads
?
?
?
? High power conversion ef?ciency 86.5% at 4.5 Vout
? Outstanding thermal derating performance
? Over temperature and over current protection
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 speci?cations (www.dosapower.
com). Applications include powering CPU’s, indus-
trial 24V transducers and POS terminals.
The wide input range is 9 to 32 Volts DC. The
maximum output current is 3 Amps. Based on
?xed-frequency synchronous buck converter
switching topology, the high power conversion
ef?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 certi?cations (2nd Edition)
and RoHS-6 hazardous substance compliance.
?
? On/Off control
?
? UL/EN/IEC 60950-1 safety, 2nd Edition
?
?
? Industry-standard (DOSA) surface-mount package
? RoHS-6 hazardous substance compliance
Connection Diagram
+Vin
+Vout
F1
On/Off
External
DC
Control
Controller
Trim
Power
Source
Open = On
Closed = Off
(Positive
On/Off)
Common
Reference and
Error Ampli ?er
Common
Figure 1. OKI-T/3
Note: Murata Power Solutions strongly recommends an external input fuse, F1.
See speci?cations.
　
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
MDC_OKI-T/3-W32 Series.A07 Page 1 of 13
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