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Murata Manufacturing Electronic Components Datasheet

OKR-T-3-W12-C Datasheet

Adjustable Output 3-Amp SIP-mount DC/DC Converters

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www.murata-ps.com
OKR-T/3 Series
Adjustable Output 3-Amp SIP-mount DC/DC Converters
Typical unit
FEATURES
600 KHz operation
4.5-14 Vdc input voltage range
Programmable output voltage from 0.591-6.0 VDC
Drives up to 200 μF ceramic capacitive loads
High power conversion efficiency at 93%
Outstanding thermal derating performance
Over temperature and over current protection
On/Off control
SIP, 0.41 x 0.65 x 0.4 inches (10.4 x 16.5 x 10.2 mm).
Certified to UL/EN/IEC 60950-1 safety standards,
2nd edition
RoHS-6 hazardous substance compliance
PRODUCT OVERVIEW
The OKR-T/3 series are miniature SIP non-isolated Point-of-Load (PoL) DC/DC power converters
measuring only 0.41 x 0.65 x 0.22 inches (10.4 x 16.5 x 5.6 mm). The wide input range is 4.5 to 14 Volts
DC. Based on 600 KHz synchronous buck topology, the high power conversion efficient Point of Load (PoL)
module features programmable output voltage and On/Off control, under voltage lock out (UVLO), overcur-
rent and over temperature protections. These units are certified to UL/EN/ IEC 60950-1 safety standards
(2nd edition) and RoHS-6 hazardous substance compliance.
+Vin
F1
On/Off
Control
External
DC
Power
Source
Open = On
Closed = Off
(Positive
On/Off)
Common
Figure 1. Connection Diagram
Controller
t4XJUDIJOH
t'JMUFST
t$VSSFOU4FOTF
Reference and
Error Amplifier
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
+Vout
Trim
Common
MDC_OKR-T/3-W12.B03 Page 1 of 18


Murata Manufacturing Electronic Components Datasheet

OKR-T-3-W12-C Datasheet

Adjustable Output 3-Amp SIP-mount DC/DC Converters

No Preview Available !

OKR-T/3 Series
Adjustable Output 3-Amp SIP-mount DC/DC Converters
Performance Specifications Summary and Ordering Guide
ORDERING GUIDE
Output
Input
Root Model
IOUT R/N (mVp-p) Regulation (Max.)
IIN, IIN,
VOUT (Amps Power
VIN Nom. Range no load full load
(Volts) max) (Watts) Max.
Line Load (Volts) (Volts) (mA) (Amps)
Efficiency
Min. Typ.
OKR-T/3-W12-C 0.591-6 3
15
25
±0.3% ±1.4% 12 4.5-14 80
1.34 90.75% 93%
Package
Case Pinout
C72 P73
For Vout ≥ 3.3V, Vin should be ≥ (Vout ÷ 0.85) + 0.5V.
Ripple and Noise is shown at Vout=1V. See specs for details.
All specifications are at nominal line voltage, Vout= 5V and full load, +25°C. unless other-
wise noted. Output capacitors are 1 μF ceramic and 22 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.
Vin must be 2V or higher than Vout for 3.3 to 5V outputs.
PART NUMBER STRUCTURE
OK R - T / 3 - W12 E - C
Okami Non-isolated PoL
SIP-Mount
Output Voltage Range
T = Trimmable, 0.591-6 Volts
Maximum Rated Output
Current in Amps
RoHS Hazardous
Substance Compliance
C = RoHS-6 (does not claim EU RoHS exemption 7b–lead in solder)
Forced On/Off Control
Blank = Standard on/off, open pin = ON
E = Forced enable, open pin = OFF, see specs
Wide Input Voltage Range
W12 = 4.5 – 14 Volts
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
OKR-T/3-W12-C
OKR-T/3-W12E-C
Product Code
R01103
R01103E
The manufacturing date code is four characters:
First character – Last digit of manufacturing year, example 2009
Second character – Month code (1 through 9 = Jan-Sep;
O, N, D = Oct, Nov, Dec)
Third character – Day code (1 through 9 = 1 to 9, 10 = 0 and
11 through 31 = A through Z)
Fourth character – Manufacturing information
www.murata-ps.com/support
MDC_OKR-T/3-W12.B03 Page 2 of 18


Part Number OKR-T-3-W12-C
Description Adjustable Output 3-Amp SIP-mount DC/DC Converters
Maker Murata
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OKR-T-3-W12-C Datasheet PDF






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