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www.murata-ps.com
OKX T/5-W5 Series
Adjustable 5-Amp SIP Non-Isolated DC/DC Converters
FEATURES
Non-isolated SIP PoL DC/DC power module 2.4-5.5Vdc input voltage range Programmable output voltage from 0.7525-
3.366Vdc Under Voltage shutdown (Vin) Drives 1000 μF ceramic capacitive loads High power conversion efficiency 95% at 3.3
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/5-W5 series are miniature SIP nonisolated Point-of-Load (PoL) DC/DC power converters 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 2.4 to 5.5 Volts DC at 5 amps. Based on fixed-frequency syn-
chronous 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, 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/5-W5
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/5-W5 Series.A02 Page 1 of 13
OKX T/5-W5 Series
Adjustable 5-Amp SIP Non-Isolated DC/DC Converters
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE Output
Input
Model Number ➀
VOUT (Volts) ➀
IOUT R/N Regulation (Max.)
(Amps, Power (mVp-p)
Vin Nom. Range
max) ➀ (Watts) Max. Line Load (Volts) (Volts)
Iin, no load
(mA)
OKX-T/5-W5-C .7525-3.6 5
16.5 40 ±0.25% ±0.5% 5 2.4-5.5 20
Iin, full load (Amps)
3.474
Efficiency Min. Typ. 92% 95.0%
➀ All specifications are typical at nominal line voltage, Vout=nominal (3.3V for W5 models) and full load, +25°C. Ripple and Noise (R/N) is shown at Vout=1V. See specs for details.
The input voltage range must be 0.5V greater than the output voltage.
Dimensions
in inches (mm)
0.40x0.90x0.282 (10.16x 22.86x 7.163)
PART NUMBER STRUCTURE
OK X - T / 5 - W5 N Lx - 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
W5 Models = 0.7525-3.63V
Maximum Rated Output Current in Amps
Pin Length Option Blank = Standard pin length L6 = Pin length 0.138 inches (3.5mm)*
On/Off Polarity P = Positive Polarity N = Negative Polarity
Input Voltage Range W5 = 2.4-5.5V
*Special quantity order is required; samples available with standard pin length only.
Note: Some model number combinations may not be available. See website or contact your local Murata sales representative.
www.murata-ps.com/support
MDC_OKX_T/5-W5 Series.A02 Page 2 of 13
OKX T/5-W5 Series
Adjustable 5-Amp SIP Non-Isolated DC/DC Converters
FUNCTIONAL SPECIFICATIONS, OKX-T/5-W5-C
ABSOLUTE MAXIMUM RATINGS
Conditions ➀
Minimum
Typical/Nominal
Maximum
Units
Input Voltage, Continuous
Full power operation
0
5.8 Vdc
Input Reverse Polarity
None, install external fuse
None Vdc
On/Off Remote Control
Power on or off, referred to -Vin
0
5.5 Vdc
Output Power
0
16.5
16.83
W
Output Current
Current-limited, no damage, short-circuit protected
0
5A
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
Vo < Vin-0.5
2.4 5 5.5 Vdc
Recommended External Fuse
Fast blow
6A
Turn On/Start-up threshold
Rising input voltage
1.95 2.05 2.15 Vdc
Turn Off/Undervoltage lockout 15
Falling input voltage
1.73 1.9 2.07 Vdc
Reverse Polarity Protection
None, install external fuse
None Vdc
Internal Filter Type
C-TYPE
Input current
Full Load Conditions
Vin = nominal (3.3Vo set)
3.474
3.659
A
Low Line
Vin @ min, 3.3 Vout
4.407
4.691
A
Inrush Transient
0.04 A2-Sec.
Short Circuit Input Current
150 mA
No Load Input Current
3.3Vout, Iout @ 0
20 50 mA
No Load Input Current
0.75V, Iout @ 0
15 40
Shut-Down Mode Input Current
50 mA
Reflected (back) ripple curre.