OKLP-X/60-W12A-C
www.murata-ps.com
60A Power Block Non-Isolated DC-DC Converter
Typical uni
unit
FEATURES
PRODUCT OVERVIEW

High efficiency (95% @12Vin, 3.3Vout)
The “60A Power Block” is an 115.5W, nonisolated DC-DC converter. This DC-DC module is a
structure block for a new open digital power design
developed to work with either digital or analog
controllers, with an input range of 7-13.2VDC and a
regulated output of 0.6-3.63VDC, with load current
up to 60A at 0.6V to 1.32V output voltage. The
Power Block is a synchronous buck converter. The
two phases can be tied together and can current
share as a single output, or they can be separated

Power Block (60A, 7-13.2Vin, 0.6-3.63Vout, SMT)

Input under-voltage lockout

Small footprint (1" [25.4] x 0.5" [12.7] x 0.48"
[12.2])

No minimum load required

Low Output Ripple

-40°C to +85°C operating temperature
as two different outputs. It has been implemented
using a synchronous buck gate driver IC with
co-packed control and synchronous MOSFETs and
Schottky diode. The output filter consists of 270nH
inductance and 10μF capacitance. A Low Drop
out Voltage Regulator is used to provide regulated
7V VCC to the gate driver IC. A Voltage Detector is
used to shut down the gate driver when VCC drops
below limit.

Two phases
Linear
Regulator
+7V
Voltage
Detector
VIN
VOUT
PWM
Output
Filter
GND
GND
Thermal Sensor
TEMP
TEMP
-CS
2.74KΩ
10Ω
+CS
GND
0.22μF
1μF
Figure 1. Block diagram of one of the two phases
For full details go to
www.murata-ps.com/rohs
(pending)
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MDC_OKLP-X/60-W12A-C.A02 Page 1 of 12
OKLP-X/60-W12A-C
60A Power Block Non-Isolated DC-DC Converter
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE ➀
Output
Root Model
OKLP-X/60-W12A-C ➀
➀
➁
➂
➃
Input
Dimensions
Efficiency ➂
Vout
(Volts)
Iout (Amps,
max.)
Power
(Watts)
Vin nom.
(Volts)
Range
(Volts)
Iin, full load
(Amps) ➁
Typ.
0.6-3.63
60 ➃
115.5
12
7-13.2
17.4
95.0%
Inches (mm)
1 x 0.5 x 0.48
(25.4 x 12.7 x 12.2)
Typical at Ta = +25°C
@Vin = 7V, Vout = 3.3V, Iout = 17.5A
@Vin = 12V, Vout = 3.3V, Iout = 17.5A
Two phases
PART NUMBER STRUCTURE
OK L P - X / 60 - W12A - C
Okami Non-isolated PoL
Surface Mount
Power Block
Output Voltage Range
0.6-3.63Vdc
RoHS Hazardous Substance Compliance
C = RoHS-6 (does not claim EU RoHS exemption
Input Voltage Range
7-13.2Vdc
Maximum Rated Output
Current in Amps
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MDC_OKLP-X/60-W12A-C.A02 Page 2 of 12
OKLP-X/60-W12A-C
60A Power Block Non-Isolated DC-DC Converter
1. Input Requirements
1.1. Voltage:
Parameter
Vin (Pin #9, 13):
Operating
Absolute max
+7V (Pin #4):
Operating
Under-voltage lockout, rising
Under-voltage lockout, falling
Hysteresis
PWM (Pin # 10, 12): High
Low
Tri-state current
Notes
Min
7.0
Nom
6.7
5.7
5.1
7.0
6.0
5.3
0.67
2.5
1
Max
13.2
15.0
7.5
6.3
5.5
5.5
0.8
10
-10
Units
V
V
V
μA
1. Sourcing or sinking current to/from PWM (Pin #) within the specified range will result in both high and low-side MOSFET’s to be held off by the gate-driver circuitry.
1.2. Current:
Parameter
Vin = 7V, Vout = 3.3V, Iout = 35A (Switching at 400KHz)
Vin = 7V, Vout = 0.6V, Iout = 60A (Switching at 400KHz)
Vin = 12V, Vout = 0.6V, Iout = 60A (Switching at 400KHz)
+7V (Pin 5) (Switching at 500 KHz)
Notes
Min
Nom
Max
21
7.4
4.4
95
Units
A
A
A
mA
2. Output Requirements
2.1. Voltage:
Parameter
Notes
Min
0.6
Nom
Max
3.63
Units
V
Notes
Min
Nom
Max
Units
1
1
1
0
0
0
30
25
17.5
A
A
A
Operating Range
2.2. Current per Phase:
Parameter
Operating Range
0.6V to 1.32V
1.32V to 2.0V
2.0V to 3.63V
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MDC_OKLP-X/60-W12A-C.A02 Page 3 of 12
OKLP-X/60-W12A-C
60A Power Block Non-Isolated DC-DC Converter
2.3. Power/Efficiency
Parameter
Notes
Min
Nom
Output Power
Efficiency:
Vout = 3.3V, Iout = 25A
Vout = 2.5V, Iout = 40A
Vout = 2.0V, Iout = 40A
Vout = 1.8V, Iout = 50A
Vout = 1V, Iout = 60A
Vout = 0.6V, Iout = 60A
Max
115.5
95
94.5
93.5
92
87
82
1, 2
Units
W
%
1. Switching at 400KHz, Vin = 12V with 200 LFM at 25°C.
2. Gate drive and controller losses are included.
2.4. Capacitor
Parameter
Input Capacitance
Output Capacitance
Notes
1
1
Min
Nom
60
20
Max
Units
μF
μF
1. Additional input and output capacitors are to be added externally as part of the buck regulator design.
2.5. Resistor
Parameter
Output-to-GND Resistor
Notes
1
Min
Nom
200
Max
Units
Ω
Notes
Min
243
0.40
Nom
270
0.43
39
Max
297
0.46
Units
nH
mΩ
A
Min
300
Nom
400
Max
500
Units
kHz
1. 0603 resistor.
2.6. Inductor
Parameter
Inductance
DCR (25C)
Isat (125C)
1
1. See Block Diagram for DCR sense requirements.
2.7. Switching Frequency
Parameter
Frequency
Notes
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MDC_OKLP-X/60-W12A-C.A02 Page 4 of 12
OKLP-X/60-W12A-C
60A Power Block Non-Isolated DC-DC Converter
3. Temperature Sense
A PN junction shall be used, MMBT3906 with base and collector tied to ground. The PWM controller shall put out currents
at different levels into the emitter, and calculate junction temperature by measuring emitter-to-base voltage at different
current levels. There shall be a 10nF bypass capacitor.
4. Mechanical
4.1. General
Single-board, designed for machine pick-N-place. Footprint is 0.5" x 1.0". Maximum height is 0.48".
4.2.
Parameter
Dimensions
Weight
Notes
Nom
1 x 0.5 x 0.48
25.4x 12.7x 12.2
0.38
10.78
Units
inches
mm
ounces
grams
4.3. Pinout
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Name
CS1Gnd
Vout1
+7v
Vout2
Gnd
CS2CS2+
Vin
PWM2
Gnd
PWM1
Vin
CS1+
Temp1
Temp2
Function
Negative DCR sense for phase1
Ground
Output voltage for phase1
Input voltage for gate driver
Output voltage for phase2
Ground
Negative DCR sense for phase2
Positive DCR sense for phase2
Input supply voltage
Phase2 Pulse Width Modulation input
Ground
Phase1 Pulse Width Modulation input
Input supply voltage
Positive DCR sense for phase1
From temperature sense device on the power block for temperature sensing for phase 1.
From temperature sense device on the power block for temperature sensing for phase 2.
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MDC_OKLP-X/60-W12A-C.A02 Page 5 of 12
OKLP-X/60-W12A-C
60A Power Block Non-Isolated DC-DC Converter
4.4. Mechanical Specifications
Tref
(U1)
SECTION A-A
SCALE 2 : 1
.02 x 45
('PIN' #1
INDICATOR)
END
VIEW
12.7
.50
TOP VIEW
0.08
.003 NOM
SOLDER 'PIN'
THICKNESS (TYP)
25.4
1.00
ALL 'PINS' COPLANAR
WITHIN .006"
12.2
.48
SIDE VIEW
A
1.37
.054
20.12
.792
2.64
.10
14
10.16
.400
A
1.37
.054
3.35
6x .132
13
12
11
10
9
8
15
16
5.08
.200
1
1.27
.050
'PIN' #1
INDICATOR
2
3
4
5
6
7
BOTTOM VIEW
16x
2.74
.108
16x
1.96
.077
'PIN' #
Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CS1Gnd
Vout1
+7v
Vout2
Gnd
CS2CS2+
Vin
PWM2
Gnd
PWM1
Vin
CS1+
Temp1
Temp2
DIMENSIONS ARE IN INCHES [mm]
THIRD ANGLE PROJECTION
TOLERANCES:
2 PLACE .02
3 PLACE .010
ANGLES:
1
COMPONENTS SHOWN ARE FOR REFERENCE ONLY
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MDC_OKLP-X/60-W12A-C.A02 Page 6 of 12
OKLP-X/60-W12A-C
60A Power Block Non-Isolated DC-DC Converter
www.murata-ps.com/support
MDC_OKLP-X/60-W12A-C.A02 Page 7 of 12
OKLP-X/60-W12A-C
60A Power Block Non-Isolated DC-DC Converter
Tape and Reel Information (MSL Rating 2)
FEED (UNWIND) DIRECTION
7770234 SHIPPING KIT
TAPE AND REEL WITH MSL2
PACKAGING (NOT SHOWN)
200 UNITS PER REEL
330.2
13.0
FEED (UNWIND) DIRECTION
PIN #1
2.00
.079
4.00
.157
REF
ROUND HOLES (SPROCKET
HOLES) ALONG THIS EDGE
20.2
.80
PICKUP NOZZLE
LOCATION*
(6.3mm DIA)
40.40
1.591
24.00
.945
PITCH
44.0
1.73
OBLONG HOLES (SPROCKET
HOLES) ALONG THIS EDGE
COVER TAPE
.52 REF
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MDC_OKLP-X/60-W12A-C.A02 Page 8 of 12
OKLP-X/60-W12A-C
60A Power Block Non-Isolated DC-DC Converter
5. Miscellaneous
5.1. Environmental
Parameter
Temperature, Operating, Long-Term
Temperature, Storage
Available airflow (along either long or short side)
Altitude, Operating
Relative Humidity, Operating, Non-Condensing
MSL Rating 2
Notes
1
Min
-40
-40
200
-500
10
Nom
-
Max
85
125
10,000
90
Units
°C
°C
LFM
Feet
%
Nom
TBD
Max
-
Units
MHrs
1. Derate operating temperature 1°C per 1000 Feet of altitude above sea-level.
5.2. Reliability
1. Calculated according to Bellcore or Telcordia TR-NTW-000332 at 40C full-load.
2. Calculated at 30 °C.
Parameter
Calculated MTBF
Notes
1
Min
-
5.3. Parallel Operation
2 or more units will be operated in parallel. Current sharing function will be performed by the external PWM controller.
5.4. SMT Reflow Soldering Guidelines
The surface-mount reflow solder profile shown below is suitable for the recommended SAC305 type lead-free solders.
This graph should be used only as a guideline. Many other factors influence the success of SMT reflow soldering. Since
your production environment may differ, please thoroughly review these guidelines with your process engineers.
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MDC_OKLP-X/60-W12A-C.A02 Page 9 of 12
OKLP-X/60-W12A-C
60A Power Block Non-Isolated DC-DC Converter
TYPICAL PERFORMANCE DATA
Efficiency vs. Line Voltage and Load Current @ +25˚C. (Vout = 1.0V)
7Vin
12Vin
Efficiency (%)
Efficiency (%)
Efficiency vs. Line Voltage and Load Current @ +25˚C. (Vout = 0.6V)
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
13.2Vin
0
10
20
30
40
50
60
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
7Vin
12Vin
13.2Vin
0
10
20
Load Curre nt (Amps)
30
40
50
60
Load Curre nt (Amps)
Efficiency (%)
Efficiency vs. Line Voltage and Load Current @ +25˚C. (Vout = 1.8V)
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
7Vin
12Vin
13.2Vin
0
10
20
30
40
50
60
Load Curre nt (Amps)
Efficiency vs. Line Voltage and Load Current @ +25˚C. (Vout = 3.3V)
Efficiency (%)
Efficiency (%)
Efficiency vs. Line Voltage and Load Current @ +25˚C. (Vout = 2.5V)
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
7Vin
12Vin
13.2Vin
0
10
20
30
Load Curre nt (Amps)
40
50
60
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
7Vin
12Vin
13.2Vin
0
10
20
30
40
50
60
Load Curre nt (Amps)
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MDC_OKLP-X/60-W12A-C.A02 Page 10 of 12
OKLP-X/60-W12A-C
60A Power Block Non-Isolated DC-DC Converter
TYPICAL PERFORMANCE DATA
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
Temperature Derating @1.3Vout
Vin 12V (airflow from Pin 1 to Pin 7 on PCB)
Output Current (Amps)
Output Current (Amps)
Temperature Derating @1Vout
Vin 12V (airflow from Pin 1 to Pin 7 on PCB)
Natural convection
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
2.0 m/s (400 LFM)
30
35
40
45
50
55
60
65
70
75
80
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
85
Natural convection
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
2.0 m/s (400 LFM)
30
35
40
45
Ambient Temperature (ºC)
55
60
65
70
75
80
85
80
85
Ambient Temperature (ºC)
Temperature Derating @2.5Vout
Vin 12V (airflow from Pin 1 to Pin 7 on PCB)
Temperature Derating @1.8Vout
Vin 12V (airflow from Pin 1 to Pin 7 on PCB)
45
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
44
43
Natural convection
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
2.0 m/s (400 LFM)
42
41
Output Current (Amps)
Output Current (Amps)
50
Natural convection
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
2.0 m/s (400 LFM)
40
39
38
37
36
35
34
33
32
31
30
30
35
40
45
50
55
60
65
70
75
80
85
30
35
40
45
50
55
60
65
70
75
Ambient Temperature (ºC)
Ambient Temperature (ºC)
Temperature Derating @3.3Vout
Vin 12V (airflow from Pin 1 to Pin 7 on PCB)
40
39
Natural convection
0.5 m/s (100 LFM)
1.0 m/s (200 LFM)
1.5 m/s (300 LFM)
2.0 m/s (400 LFM)
Output Current (Amps)
38
37
36
*The hottest component is U1; its operating temperature (Tref as
indicated in section 4.4) has a maximum limit of 125°C. For reliable
operation, the temperature at this point should not exceed 125°C in
customer’s application.
35
34
33
32
31
30
30
35
40
45
50
55
60
65
70
75
80
85
Ambient Temperature (ºC)
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MDC_OKLP-X/60-W12A-C.A02 Page 11 of 12
P5
2
1
P6
SBAR23
P9
2
4
6
8
10
P11
R14
R13
NONE
1
3
2
ISO 9001 and 14001 REGISTERED
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
NONE
SBAR8
NONE
SBAR6
SBAR9
NONE
SBAR2
NONE
SBAR10
NONE
SBAR3
NONE
NONE
1
2
3
4
NONE
SBAR1
SBAR32
38.3k
NONE
SBAC3
NONE
SBAC4
SBAR31
38.3k
AVSCLK1
AVSDATA1
AGND
PMBCLK
PMBDATA
SMBALERT
CNTL2
CNTL1
PHSET
SYNC
SBAU1
TPS40425
41
PAD
0
SBAR29
0
SBAR7
21
22
23
SBAC45
1000pF
0
0
1uF
1uF
SBAC6 SBAC13
SBAC12
SBAR13
SBAC37
0.22uF
0.22uF
SBAC21
24
1uF
10.0k
SBAR25
SBAC22
10.0
SBAR34
10.0
SBAR33
SBAC23
22uF 22uF 22uF 22uF
SBAC20
SBAC31
0
SBAR11
+VIN
25
26
27
28
29
30
SBAR18
ISH2
PG2
PWM2
VDD
BP5
BP3
PGND
PWM1
PG1
ISH1
0
SBAR17
SBAC46
1000pF
1uF
1uF
SBAC30 SBAC36
8
7
14
1
12
10
13
9
4
+ 7V
SBAU2
VOUT1
VOUT2
2
1
P4
OKLP-X/60-W12A-C
PWM1
PWM2 TEMPERATURE1
TEMPERATURE2
+CS1
-CS1
GND
GND
+CS2
-CS2
GND
VIN1
VIN2
+7VIN
2.2uF
SBAC26
Figure 2. Typical OKLP-X/60-W12A-C controller implementation
http://power.murata.com/en/application-notes/dc-dc-application-notes.html
For more details, click here to see Application Note AN67, Evaluation Boards for OKLP-X/60-W12A-C.
NONE
SBAR4
NONE
SBAC2
10
9
8
7
6
4
SBAR30
49.9k
40
RT
ADDR1
11
NONE
SBAR28
39
DIFFO1
ADDR0
12
100pF
0
SBAR5
38
GSNS1
GSNS2
13
3300pF
SBAC9
SBAC11
14
10k
37
VSNS1
VSNS2
SBAR16
5
1
3
5
7
9
NONE
SBAR24 NONE
NC
SBAR19 SBAR20
15k
NONE
2
NC
0
36
COMP1
COMP2
15
3300pF
35
FB1
FB2
16
SBAC8
34
FLT1
FLT2
17
SBAR22
0
18
TSNS1
10.0
33
CS1N
CS2N
SBAR21
32
CS1P
CS2P
19
SBAR12
31
TSNS2
20
SBAR14 SBAR15
10.0k
NONE
1
+VOUT
2
6
11
15
16
3
5
100uF
SBAC38
100uF
SBAC27
+VOUT
100uF
SBAC39
100uF
1
2
3
SBAC284
100uF
SBAC4
100uF
SBAC2
P3
OKLP-X/60-W12A-C
60A Power Block Non-Isolated DC-DC Converter
This product is subject to the following operating requirements
and the Life and Safety Critical Application Sales Policy:
Refer to: http://www.murata-ps.com/requirements/
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without
notice.
© 2016 Murata Power Solutions, Inc.
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MDC_OKLP-X/60-W12A-C.A02 Page 12 of 12