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Home » Product Knowledge Center » Murata Power Solutions Okami OKI

Murata Power Solutions Okami™ OKI Series

The Murata Power Solutions 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 specifications ( www.dosapower.com ). Applications include powering CPU's, 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 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, overcurrent and over temperature protections.

Now includes the OKI-T/3-W32 series, designed for +12 or +24 VCD industrial applications, with a wide input voltage range of +9 to +32 VDC.

The Murata Power Solutions OKI - T/3 DC/DC Converters are designed to meet all standard UL/EN/IEC 60950-1 safety certifications and RoHS-6 hazardous substance compliance.



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 1000µF 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 (pending)
  • Industry-standard (DOSA) surface-mount package
  • RoHS-6 hazardous substance compliance
Part
Number
Output
Input
Efficiency
Package, C72
Vout
(Volts) 2
Iout
(Amps max)
Power
(Watts)
R/N (mVp-p) 3
Regulation (Max)
V in Norm. (Volts) Range (Volts) 3

lin, no load (mA) 4
lin, full load (Amps)
Max. Line Load Min. Typ. Case C72 1 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%
0.47x0.82x0.34
(11.9x20.8x8.5)
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% 0.47x0.82x0.34
(11.9x20.8x8.5) 		P78
OKI-T/36W-W40N-C 5.021-15.5 3 36 50 ±0.3% ±0.25% 24 19-40 80 1.58 93% 95% 0.47x0.82x0.34
(11.9x20.8x8.6)
 P78
OKI-T/3-W32N-C 0.7525-4.5 3 13.5 20 ±0.2% ±0.25% 24 9-32 40 0.632 86.5% 89%
0.47 x 0.82 x 0.34
(11.9 x 20.8 x 8.5)
 P78
OKI-T/3-W40 Series Datasheet
OKI-T36-W40 Series Datasheet
OKI-T/3-W32 Series Datasheet
All specifications are at nominal line voltage, Vout=nominal (5V) and full load, +25ºC, unless otherwise noted.
Output capacitors are 1µF ceramic and 10 µF electrolytic in parallel. Input cap is 22 µF.
I/O caps are necessary for our test equipment and may not be needed for your application.
1 Dimensions are in inches (mm).
2 For Vout=1V, Vin≤32V. For Vout=0.75V, Vin≤24V.
3 Ripple/Noise is shown at Vout=1V.
4 No load input current is shown at Vout=0.75V.


Note: Murata Power Solutions strongly recommends an external input fuse, F1. See specifications .


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