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Номер произв OKX-T-3-D12-C
Описание Adjustable 3-Amp SIP Non-Isolated DC/DC Converters
Производители Murata
логотип Murata логотип 

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OKX-T-3-D12-C Даташит, Описание, Даташиты
www.murata-ps.com
OKX-T/3-D12 Series
Adjustable 3-Amp SIP Non-Isolated DC/DC Converters
FEATURES
„Non-isolated SIP PoL DC/DC power module
„8.3-13.8Vdc input voltage range
„Programmable output voltage from 0.7525-
5.5Vdc
„Under Voltage shutdown (Vin)
„Drives 1000 μF ceramic capacitive loads
„High power conversion efficiency 93% at 5 Vout
(typical)
„Outstanding thermal derating performance
„Over temperature and over current protection
„On/Off control
„UL60950, CSA-C22.2 No.60950 IEC/EN60950
(pending)
„Industry-standard (DOSA) SIP format
„RoHS-6 hazardous substance compliance
Typical unit
PRODUCT OVERVIEW
The OKX-T/3-D12 series are miniature SIP non-
isolated Point-of-Load (POL) DC/DC power convert-
ers for embedded applications. The module is fully
compatible with Distributed-power Open Standards
Alliance industry-standard specifications.
Applications include powering CPU’s, datacom/
telecom systems, programmable logic and mixed
voltage systems. The wide input range is 8.3 to
13.8 Volts DC at 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 protec-
tion, over-current and over temperature protections.
These units are designed to meet all standard UL/
EN/IEC 60950-1 safety certifications and RoHS-6
hazardous substance compliance.
+Vin
F1
On/Off
Control
External
DC
Power
Source
Open = On
Closed = Off
(Positive
On/Off)
Common
Connection Diagram
Controller
t4XJUDIJOH
t'JMUFST
t$VSSFOU4FOTF
Reference and
Error Amplifier
Figure 1. OKX-T/3-D12
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
(pending)
MDC_OKX-T/3-D12 Series.A01 Page 1 of 15







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OKX-T-3-D12-C Даташит, Описание, Даташиты
OKX-T/3-D12 Series
Adjustable 3-Amp SIP Non-Isolated DC/DC Converters
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE
Output
VOUT
Model Number (Volts)
IOUT R/N
(Amps, Power (mVp-p)
max) (Watts) Max. d
Regulation (Max.)
Line Load
OKX-T/3-D12-C .7525-5.5 3
15 20 ±0.15% ±0.3%
Input
Iin,
Vin Nom. Range no load
(Volts) (Volts) e (mA)
12 8.3-13.8 40
Iin,
full load
(Amps)
Efficiency
Min. Typ.
1.344 91.5% 93.0%
Case
Dimensions are
in inches (mm)
0.40x0.90x0.282
(10.16x 22.86x 7.163)
All specifications are at nominal line voltage, Vout=nominal (5V for D12 models) and full load, +25°C unless otherwise
noted.
d Ripple and Noise (R/N) is shown at Vout=1V. See specs for details.
e The input voltage range must be 0.5V greater than the output voltage.
PART NUMBER STRUCTURE
OK X - T / 3 -D12 N - C
Okami Non-isolated PoL
RoHS Hazardous Substance Compliance
C = RoHS-6 (does not claim EU RoHS
exemption 7b–lead in solder)
SIP Mount
Trimmable Output
Voltage Range
D12 Models = 0.7525-5.5V
On/Off Logic
P = Positive Logic
N = Negative Logic
Maximum Rated Output
Current in Amps
Input Voltage Range
D12 = 8.3-13.8V
Note: Some model number combinations
may not be available. See Ordering Guide
above. Contact Murata Power Solutions for
availability.
www.murata-ps.com/support
MDC_OKX-T/3-D12 Series.A01 Page 2 of 15







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OKX-T-3-D12-C Даташит, Описание, Даташиты
OKX-T/3-D12 Series
Adjustable 3-Amp SIP Non-Isolated DC/DC Converters
FUNCTIONAL SPECIFICATIONS, OKX-T/3-D12-C
ABSOLUTE MAXIMUM RATINGS
Conditions
Minimum
Typical/Nominal
Maximum
Units
Input Voltage, Continuous
Full power operation
0
15 Vdc
Input Reverse Polarity
None, install external fuse
None Vdc
On/Off Remote Control
Power on or off, referred to -Vin
0
13.8 Vdc
Output Power
0 15 15.3 W
Output Current
Current-limited, no damage,
short-circuit protected
0
3A
Storage Temperature Range
Vin = Zero (no power)
-55
125 °C
Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other
than those listed in the Performance/Functional Specifications Table is not implied or recommended.
INPUT
Conditions ➀ ➂
Operating voltage range
Vin ≥ Vout +2
8.3 12 13.8 Vdc
Recommended External Fuse
Fast blow
4A
Turn On/Start-up threshold
Rising input voltage
7.5 8.0 8.3 Vdc
Turn Off/Undervoltage lockout 15
Falling input voltage
7.3 7.8 8.05 Vdc
Reverse Polarity Protection
None, install external fuse
None Vdc
Internal Filter Type
C-TYPE
Input current
Full Load Conditions
Vin = nominal (5Vo set)
1.344
1.393
A
Low Line
Vin @ min, 5 Vout
1.934
2.005
A
Inrush Transient
0.4 A2-Sec.
Short Circuit Input Current
60 mA
No Load Input Current
5Vout, Iout @ 0
40 70 mA
No Load Input Current
0.75V, Iout @ 0
20 35
Shut-Down Mode Input Current
5 mA
Reflected (back) ripple current
Measured at input with specified filter
60 mA, pk-pk
GENERAL and SAFETY
Efficiency
@ Vin nom, 5Vout
91.5 93
%
@ Vin min, 5Vout
93.5 95
%
@ Vin nom, 3.3Vout
89.5 91
%
@ Vin nom, 2.5Vout
88 89.5
%
@Vin nom, 1.8Vout
85 87
%
@Vin nom, 1.5Vout
83 85
%
@Vin nom, 1.2Vout
80.5 82.5
%
@Vin nom, 1Vout
78 80
%
Certified to UL-60950-1, CSA-C22.2
Safety
No.60950-1, IEC/EN60950-1, 2nd edition
Yes
(pending)
Calculated MTBF
Per Telcordia SR332, issue 1 class 3, ground
fixed, Tambient=+25˚C
TBD
Hours x 106
DYNAMIC CHARACTERISTICS
Fixed Switching Frequency
290 320 350 KHz
Startup Time
Power On, to Vout regulation band,
100% resistive load
8 10 mS
Startup Time
Remote ON to 10% Vout (50% resistive load)
6
mS
Dynamic Load Response
50-100-50% load step, settling time to within
±2% of Vout di/dt = 2.5 A/μSec
80 μSec
Dynamic Load Peak Deviation
same as above
±150
mV
FEATURES and OPTIONS
Remote On/Off Control
“N” suffix:
Negative Logic, ON state
Pin open=ON
0
0.4 V
Negative Logic, OFF state
1.5 +Vin V
Control Current
open collector/drain
1 mA
“P” suffix:
Positive Logic, ON state
Pin open=ON
7.8
+Vin V
Positive Logic, OFF state
0 0.4 V
Control Current
open collector/drain
1 mA
www.murata-ps.com/support
MDC_OKX-T/3-D12 Series.A01 Page 3 of 15










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