MPDRX303S/MPDRX304S DATA Sheet
1
DC-DC Converter DATA Sheet
MPDRX303S/MPDRX304S
1. Features
･Ultra high-speed response is realized by using original rippledetecting control.
･Up to 26A output current, non-isolated POL.
･Wide adjustable output voltage range by connecting external
resistance (0.8V to 3.63V).
･Wide operating temperature(-40℃ to +85℃).
･UVLO function, ON/OFF function, Output voltage sense function,
Over-current function and Power Good signal output function are built in.
Product line up
Output Voltage
1.6~3.63V
MPDRX303S
0.8~1.65V
MPDRX304S
2. Appearance, Dimensions
26.8±0.2
20
P
P
P
P
P
P
PT□
①
26.8±0.2
P
P
P
P
P
P
P
P
②
11
④
10
P
③
P
P=2.54 ±0.2mm
Tolerance is not accumulated.
P
P
M
1
7.0max.
[unit：mm]
Marking
(1) Pin No.1 Marking
(2) Parts No.
/
MFG ID
PＴ□
①
① E：MPDRX303S
D：MPDRX304S
(3) Lot No.
□□□
②③④
②Production Factory
③Production Year
④Production Month（1,2,3,…9,O,N,D）
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
2
Pin Number and Function
Pin No.
Symbol
1
SENSE
2,3,4
Vout
5,6,7,8,13,14,15
GND
9
FT
10
VAR
11,12
Vin
17
SS
18
N.C.
19
PG1
20
PG2
16
ON/OFF
Function
Output voltage sense
Output
GND
Output trim
Output voltage adjustment
Input
Soft start
This pin must be left open.
Power Good
Power Good
Remote ON/OFF
3. Block Diagram
11,12
Vout
Vin
2,3,4
SENSE
1
13,14,15
GND
GND
16
ON/OFF
17
SS
18
N.C.
5,6,7,8
VAR
10
Control Unit
FT
9
19
POW-GOOD1
20
POW-GOOD2
4. Environmental Conditions
4.1. Operating Temperature Range
4.2. Storage Temperature Range
4.3. Operating Humidity Range
4.4. Storage Humidity Range
4.5. Maximum Wet Bulb temperature
-40°C ~ +85°C(Temperature gradient ≦10℃/H)
-40°C ~ +85°C(Temperature gradient ≦10℃/H)
20% ~ 85% (No water condenses in any cases.)
10% ~ 95% (No water condenses in any cases.)
39°C
5. Absolute Maximum Rating
Item
Minimum Input Voltage
Unit
Absolute Rating
Remarks
V
0
Continuous
V
13.2
Maximum Input Voltage
Time
POW-GOOD Pin Voltage
10ms
V
14
Voltage slew rate 1.0V/10μs
ON/OFF Pin Voltage
V
7
However, below Vin
Maximum POW-GOOD Sink Current
mA
15
Total of PG1 and PG2
※No voltage, no matter how instantaneous, shall be applied beyond the absolute maximum voltage rating to this
product. If you apply any voltage over this limit the product characteristics will deteriorate or the product itself will be
destroyed. Even though it may continue operating for a while after the over-voltage event, its life will likely be shortened
significantly. Reliability and life of the module may degrade similarly if the maximum operating voltage rating is
continuously exceeded. This product is designed to operate within the maximum operating voltage rating specification.
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
3
6. Characteristics
o
6. 1. Electrical Characteristics (Ta=25 C)
(1) MPDRX303S
Value
Item
Condition
Symbol
Unit
Min.
Typ.
Max.
6.2
9.6
13.2
V
Input Voltage Range
Vin
Rising UVLO Threshold
UVLOr
Vin Increasing
-
5.25
-
V
Falling UVLO Threshold
UVLOf
Vin Decreasing
-
5.0
-
V
Output Voltage
Adjustable Range
Vout
1.6
-
3.63
V
-2.0
-
+2.0
%Vo
0
-
26
A
-
20
100
mV(pp)
Vout=3.3V
-
91
-
Vout=2.5V
-
88
-
Vout=1.8V
-
86
-
Vin =9.6V, Vout=3.3V
-
600
-
Vin =9.6V, Vout=1.8V
-
350
-
PWGL
Power Good low threshold
-
0.87Vo
-
PWGH
Power Good high threshold
-
1.13Vo
-
Output Voltage Tolerance
Vo tol
Output Current
Iout
Ripple Voltage
Vrpl
Efficiency
Operating Frequency
EFF
FT=Short
Over Vin, Io, Temperature Range
Vin=6.2～13.2V
Rset=1% tolerance, FT=Short
See the thermal derating curve
in section 6.2.
Vout =3.3V, Iout=0～26A
BW=20MHz, Cout=200µF
Vin =9.6V, Iout=26A
Frq
%
kHz
V
Power Good
ON/OFF pin High Voltage
VIH
ON/OFF pin Low Voltage
VIL
Short Circuit Protection
SCP
External Input Capacitor
Cin
External Output Capacitor
Cout
Ramp Rate
Tr
Rising Overshoot
Vover
Startup Delay
Td
RC Startup Delay
Trcd
ON/OFF pin is pulled up to Vin inside of the DC-DC converter. If ON/OFF pin is left
open the DC-DC converter shall be “ON”. This pin will be pulled down to GND
inside the DC-DC converter when UVLO events occur. Please do NOT connect
this pin to power supply with low impedance line, so as not to damage the
converter.
If ON/OFF pin is connected to
GND, the DC-DC Converter
OFF
0
1.0
V
shall be “OFF”.
If output is shorted to GND, DC-DC
converter will shut down. After reject the
26
46
A
abnormal mode, DC-DC converter will
restart by re-inputting Vin or toggling
ON/OFF pin.
When input voltage is ideal voltage
40
5000
µF
source
When input voltage is ideal voltage
source
200
-
2000
µF
1
2
5
msec
-
0
+10
%
ON/OFF High : Vin Low→ High
Vo=10%, SS= Open
0.1
0.5
2
msec
Vin High : ON/OFF Low → High/Open
Vo=10%
0.1
0.4
2
msec
Vo=10%～90%, SS=Open
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
4
(2) MPDRX304S
Value
Item
Condition
Symbol
Unit
Min.
Typ.
Max.
6.2
9.6
13.2
V
Input Voltage Range
Vin
Rising UVLO Threshold
UVLOr
Vin Increasing
-
5.25
-
V
Falling UVLO Threshold
UVLOf
Vin Decreasing
-
5.0
-
V
Output Voltage
Adjustable Range
FT=Open
0.8
-
0.95
Vout
FT=Short
0.95
-
1.65
Output Voltage Tolerance
Vo tol
-2.5
-
+2.5
%Vo
Output Current
Iout
0
-
26
A
Ripple Voltage
Vrpl
-
15
100
mV(pp)
Vout=1.5V
-
85
-
Vout=1.2V
-
83
-
Vout=0.8V
-
79
-
Vin =9.6V, Vout=1.5V
-
550
-
Vin =9.6V, Vout=0.8V
-
320
-
PWGL
Power Good low threshold
-
0.87Vo
-
PWGH
Power Good high threshold
-
1.13Vo
-
Efficiency
Operating Frequency
EFF
V
Over Vin, Io, Temperature Range
Vin=6.2～13.2V
Rset=1% tolerance
See the thermal derating curve
in section 6.2.
Vout =1.2V, Iout=0～26A
BW=20MHz, Cout=200µF
Vin =9.6V, Iout=26A
Frq
%
kHz
V
Power Good
ON/OFF pin High Voltage
VIH
ON/OFF pin Low Voltage
VIL
Short Circuit Protection
SCP
External Input Capacitor
Cin
External Output Capacitor
Cout
Ramp Rate
Tr
Rising Overshoot
Vover
Startup Delay
Td
ON/OFF Startup Delay
Trcd
ON/OFF pin is pulled up to 5V inside of the DC-DC converter. If ON/OFF pin is left
open the DC-DC converter shall be “ON”. This pin will be pulled down to GND
inside the DC-DC converter when UVLO events occur. Please do NOT connect
this pin to power supply with low impedance line, so as not to damage the
converter.
If ON/OFF pin is connected to
GND, the DC-DC Converter
OFF
0
1.0
V
shall be “OFF”.
If output is shorted to GND, DC-DC
converter will shut down. After reject the
26
46
A
abnormal mode, DC-DC converter will
restart by re-inputting Vin or toggling
ON/OFF pin.
When input voltage is ideal voltage
40
5000
µF
source
When input voltage is ideal voltage
source
200
-
2000
µF
1
2
5
msec
-
0
+10
%
ON/OFF High : Vin Low→ High
Vo=10%, SS= Open
0.1
0.5
2
msec
Vin High : ON/OFF Low → High/Open
Vo=10%
0.1
0.4
2
msec
Vo=10%～90%, SS=Open
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
5
6. 2 Thermal Derating
MPDRX304S
(Vin=6.2～12V、Vout=0.8～1.65V
Airflow:0～3.0m/s)
28
26
26
24
22
20
18
16
14
12
10
8
6
4
2
0
24
22
3 .0 m/ s
2 .0 m/ s
1 .5 m/ s
1 .0 m/ s
0 .2 m/ s
0 m/ s
Iout［A］
Iout［A］
MPDRX3 0 3 S
(Vin = 6 .2 ～1 2 V、Vou t= 1 .6 ～3 .6 3 V、
Airflow： 0 ～3 .0 ｍ/ ｓ)
20
18
3.0m/s
2.0m/s
1.5m/s
1.0m/s
16
14
12
0m/s
0.2m/s
10
8
6
4
2
20
30
40
50
60
Ta[℃]
70
80
0
20
30
40
50
60
70
80
Ta[℃]
The above derating limits apply to this product soldered directly to 101.6*180mm*1.6mm PCB (6 layer).
Any adjacent parts of high temperature may cause overheating. For reliable operation, please ensure that the FET
temperature of this product is maintained below 120°C and the inductor temperature is below 106°C.
MOSFET Measurement Point
Coil Measurement Point
Monitoring Point
of Over Temperature Protect
M
1pin
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
6
7. Operation in information
7.1. Adjusting the Output Voltage
The output voltage can be adjusted by connecting resistors between VAR-pin(10Pin) to GND-pin.
The following equation gives the required external-resistor value to adjust the output voltage to Vo-adj.
It is highly recommended that evaluation of the characteristics of this DC-DC converter’s operation under your
board conditions be thoroughly conducted.
In case output voltage is used more than 0.95V, please connect FT-pin(9pin) to GND.
Internal Circuit
①MPDRX303S
MPDRX303S
(FT-pin： SHORT to GND)
Vout
MPDRX304S
5440
RVAR＝
RVAR pin
－1800 [Ω]
Vo-adj[V]×1.002－1.5[V]
6.8 kΩ
303S：1.8 kΩ
304S：5.1kΩ
②MPDRX304S
(a)0.8≦ Vout ＜0.95V (FT-pin：OPEN)
Error amp
RVAR＝
FT pin
5440
－5100 [Ω]
Vo-adj[V]×1.002－0.8[V]
(b)0.95≦ Vout≦1.65V (FT-pin：SHORT to GND)
RVAR＝
5440
－5100 [Ω]
Vo-adj[V]×1.002－0.95[V]
①MPDRX303S
Voadj [V]
Calculated RVAR[Ω]
3.63
745
3.3
1211
2.5
3613
1.8
16118
1.6
50913
②MPDRX304S
Voadj [V]
1.65
1.5
1.2
1.0
0.95
0.9
0.8
Calculated RVAR[Ω]
2635
4737
16453
99515
2858058
48338
3394900
FT pin(9pin)
Short to GND
Short to GND
Short to GND
Short to GND
Short to GND
FT pin(9pin)
Short to GND
Short to GND
Short to GND
Short to GND
Short to GND
Open
Open
7.2. Thermal shutdown
This DC-DC converter thermally shuts down when temperature of a control IC reaches to 180℃ typically.
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
7
7.3. Power Good
Powergood signal will be changed within the value of clause 6.1. (Open-drain output)
Output voltage is within voltage detection threshold: POW-GOOD is open.
Output Voltage is out of voltage detection threshold : POW-GOOD is connected to GND.
MPDRX30*S
PG2
Internal circuit
PG1
7.4. Output Voltage Sensing
By connecting SENSE-pin to the load, output voltage drop in wiring shall be compensated.
Vout
MPDRX30*S
SENSE
Load
GND
Please do NOT connect SENSE-pin to the output of LC filter that is set to the Vout line.
When using this way, this product will not operate properly.
Vout
MPDRX30*S
SENSE
Load
GND
※Caution
Please connect SENSE-pin to Vout-pin nearby the product, if sense function is not used.
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
8
7.5. Soft start function
By using the soft start function, ramp-rate of the output-starting is adjustable. Adjustment range of ramp-rate is
from 2 to 10ms. Ramp rate is adjusted by external capacitor between SS-pin(17pin) and GND.
MPDRX30*S
SS
Css
GND
The equation of
starting time about output voltage.
（Css+1.2×10-8）×0.8
Starting time：Td＝
-4
+2×10 [s]
-6
5×10
Css：The capacitance of external capacitor.(F)
7.6. ON/OFF Control
･ON/OFF function
By using ON/OFF function, the operation of this product can be disabled without disconnection of input voltage.
Sequence of a power supply system and power-saving control can be easily achieved using this function.
･ON/OFF Control usage
When ON/OFF-pin(16pin) is left open
When ON/OFF-pin(16pin) is connected to GND
……
……
Output Voltage =ON
Output Voltage=OFF
MPDRX30*S
example
GND
ON/OFF
or
ON/OFF pin is pulled up inside of the DC-DC converter, so voltage appears up to 7V at ON/OFF pin.
ON/OFF pin will be pulled down to GND inside the DC-DC converter when UVLO events occur.
Please do NOT connect this pin to power supply, so as not to damage the converter.
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
9
7.7. Reset Condition
In order to reset all function, the input Voltage is set under 0.5V for Min.100m second or ON/OFF pin voltage is set
under 1.0V for Min 10m second.
Input Voltage
5.6～ 12V
Reset Condition
Max. 0.5V
Min. 100 ms
ON/OFF Pin Voltage
5.0V(TYP)
Max. 1.0V
Min. 10 ms
7.8. Input External capacitor
It is recommended to connect a low-impedance electrolytic capacitor of 40μF or more at Vin terminal.
Smaller input capacitor may leads to an unstable operation of this product caused by input voltage
fluctuation. Please check the proper operation of it on your product when smaller input capacitor is used.
Using ceramic capacitors as input capacitor may cause an increase of output voltage, because input ripple
current flows through the external input capacitor and wiring resistance.
This phenomenon is affected by the position of external capacitors, the value of external capacitors and
voltage difference between Vin and Vout. Using low-impedance electrolytic capacitor will ease this problem.
Please check the proper operation of it on your product when ceramic input capacitor is used.
MPDRX30*S
Vin
Cin
Vout
Ripple current
Rw×Irpl appears as additional
output ripple voltage.
Rw
Wiring resistance
7.9. Output External capacitor
Ceramic capacitors are recommended as output external capacitor.
Using ceramic capacitors, small output variation and small ripple voltage are realized.
Output capacitor should be within 200μF to 2000μF. Output capacitor shall be placed near the
output terminal. When using plural capacitors, please make sure to place a capacitor of at least
200μF near the output terminal, and place other capacitors near the load.
When using LC output filter, please make sure to place a capacitor of at least 200μF near the output terminal.
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
10
8. Reliability
8.1. Humidity Test
According to JIS-C-0022.
40土2℃, 90 to 95%RH, 100 hours.
Leave for 4 hours at room temperature.
No damage in appearance and no deviation from electrical characteristics (section 6.1).
8.2. Temperature Cycles Test
Repeat cycle 5 times. Leave 2 hours at room temp.
No damage in appearance and no deviation from electrical characteristics (section 6.1).
Step
Condition
Time
1
-40℃±3℃
30 minutes
2
Room Temp.
5～10 minutes
3
+85℃±2℃
30 minutes
4
Room Temp.
5～10 minutes
8.3. Vibration Test
10 to 55Hz, 1.5mm amplitude (frequency, 1minuit) 1 hour for each of X, Y, Z directions.
No damage in appearance and no deviation from electrical characteristics (section 6.1).
8.4. Mechanical Shock Test
20G, 1 time for each X, Y, Z directions.
No damage in appearance and no deviation from electrical characteristics (section 6.1).
9. Test Circuit
In the following test circuit, the initial values under item 6.1 should be met.
9.1. General Measure Circuit
SENSE
11,12
Vin
Vout
1
2,3,4
16 ON/OFF
17
SS
MPDRX30*S
18 NC
C1
19
Open = ON
Short = OFF
10
FT
9
RVAR
PG1
20 PG2
VAR
5,6,7,8,
GND 13,14,15
C2
RL
Open: Vo < 0.95V
Short: Vo ≧0.95V
C1：22µF／25V×2
(Ceramic Capacitor)
C2：100µF／6.3V×2
(Ceramic Capacitor)
※Please make sure to place C1 and C2 nearby input and output terminal of DC-DC converter.
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
11
9.2. Ripple Voltage Measurement Circuit
Coaxial cable :1.5D-2V, L=1.5m
Vout
Oscilloscope
BW：100MHz
DC-DC Converter
GND
Ceramic Capacitor 100µF
Terminator
（Keisokugiken TRC-50F)
Equivalent circuit
R：50Ω
C：0.01µF
A: Output Ripple Voltage&Noise
B: Output Ripple Voltage
B
A
C: Switching Period
C
10. Mounting Condition
10. 1. PCB Land Pattern Recommendation
1pin
13.3
7.0
4.2
1.8
1.0
1.97
2.54
1.5
There are wiring coppers or through-hole via at the bottom side of the DC-DC converter.When you design your
PCBs, please be careful not to short the circuit of the DC-DC converter or PCBs.
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
12
10. 2. Recommended Soldering Conditions
Reflow Soldering
This product is RoHS compliant. The following profile is recommended for the reflow of the SMD
product using Pb-free solder paste (Sn-Ag-Cu).
Method
:
Full convection reflow soldering
Reflow Soldering Profile
JEDEC IPC/JEDEC J-STD-020D
Table 6-2 Classification Reflow Profile
Pb-Free Assembly Large Body
Profile details
Soldering temperature
Soldering time
Heating time
Preheating time
Programming rate
Descending rate
Total soldering time
Times
:
:
:
:
:
:
:
:
245degC+0/-5degC
30 seconds, 240 to 245degC
60 to 150 seconds, over217degC
60 to 120 seconds,150 to 200degC
3degC/ sec. Max.,217 to 245degC
6degC/ sec. Max.
8 minutes Max., 25 to 245degC
1time
245℃
217℃
160℃
60～150
140℃
seconds
60～120
seconds
Parts surface temperature [ºC]
Times
※Do not vibrate for the products on reflow.
Please need to take care temperature control because mounted parts may come off if the product are left
under the high temperature.
Do not reflow DC-DC converter as follows, because DC-DC converter may fall down from a substrate
during reflowing.
Substrate
DC-DC converter
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
13
11. Packaging Specification
11.1. Tray Dimensions
DC-DC converters are put in the trays. (See Fig.1)
M
Unit: mm
General Tence: ±1.5mm
Fig.1
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
14
11. 2. Contained pieces of products per corrugated box.
Maximum Contained products pieces 96 pcs/corrugated box.
Further plural sheets of corrugated cardboard are placed on the top of the dummy tray according to number of
contained trays in order to full up the space in a corrugated box.
11. 3. Packaging Form
Trays with products are lidded and packed in a corrugated box.
(See Fig.2)
Corruted cardboard
Dummy
tray
Tray
Containning products
4 tray max.
Corrugated cardboard
（330）
（68）
MURATA PRODUCTS
（155）
Lebel
Corrugated box
Dimension [unit : mm]of
Corrad box is reference only.
Fig.2
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
15
12. Typical Characteristics Data
12. 1. Load Transient Response
Our original ripple-detective control method achieves much better load transient responses.
Vin=9.6V, Vo=2.5V(MPDRX303S) , 1.2V(MPDRX304S)
Io=0A ->10A, di/dt=20A/us, Cout=200uF(Ceramic), Ta=25 oC
Vout
50mV/div
Vout
50mV/div
10us/div
10us/div
Iout
Iout
Fig. 12-1a. Load Transient Response (MPDRX303S)
Fig. 12-1b.Load Transient Response (MPDRX304S)
12. 2. Output Impedance characteristics
Our original ripple-detective control method achieves very low output impedance in wide frequency range.
MPDRX303S/304S Output Impedance
Conventional PMW Product's Output
Impedance
100
40
80
30
Zo [mohm]
Zo[mOhm]
50
20
10
60
40
20
0
0.1
1
10
100
Frquency[kHz]
Fig. 12-2-1. Output Impedance of MPDRX303S/304S
0
0.01
0.1
1
10
100
Frequency [kHz]
Fig. 12-2-2. Output Impedance of conventional product
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
16
12. 3. Other electrical characteristics
12. 3. 1. Vout=3.3V (MPDRX303S)
（Ta=25℃, Cin= GRM32ER71C226KE15L×2, Cout=GRM32EB30J107ME16L×2, Rtrim=1211Ω）
Efficiency
3.399
95
3.366
92
Efficiency（％）
Vout（V）
Load Reguration
3.333
3.300
3.267
89
86
3.234
83
3.201
80
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28
Iout（Ａ）
Vin：5.6V
Vin：9.6V
Iout（Ａ）
Vin：14V
Fig. 12-3-1. Output Voltage v.s. Output Current
Vin：5.6V
Vin：9.6V
Vin：14V
Fig. 12-3-2. Efficiency v.s. Output Current
Ripple noise voltage
Ripple noise voltage (mVp-p)
25
20
15
10
5
0
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28
Iout（Ａ）
Vin：5.6V
Vin：9.6V
Vin：14V
Fig. 12-3-3. Ripple Voltage v. s. Output Current
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
17
12. 3. 2. Vout=2.5V (MPDRX303S)
（Ta=25℃, Cin= GRM32ER71C226KE15L×2,Cout=GRM32EB30J107ME16L×2, Rtrim=3613kΩ）
Efficiency
2.575
95
2.550
92
Efficiency（％）
Vout（V）
Load Reguration
2.525
2.500
2.475
89
86
2.450
83
2.425
80
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28
Iout（Ａ）
Iout（Ａ）
Vin：5.6V
Vin：9.6V
Vin：14V
Fig. 12-3-4. Output Voltage v.s. Output Current
Vin：5.6V
Vin：9.6V
Vin：14V
Fig. 12-3-5. Efficiency v.s. Output Current
Ripple noise voltage
Ripple noise voltage (mVp-p)
25
20
15
10
5
0
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28
Iout（Ａ）
Vin：5.6V
Vin：9.6V
Vin：14V
Fig. 12-3-6. Ripple Voltage v.s. Output Current
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
18
12. 3. 3. Vout=1.8V (MPDRX303S)
（Ta=25℃, Cin= GRM32ER71C226KE15L×2, Cout=GRM32EB30J107ME16L×2, Rtrim=16118kΩ）
Efficiency
1.854
95
1.836
92
Efficiency（％）
Vout（V）
Load Reguration
1.818
1.800
1.782
89
86
1.764
83
1.746
80
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28
Iout（Ａ）
Iout（Ａ）
Vin：5.6V
Vin：9.6V
Vin：14V
Fig. 12-3-7. Output Voltage v.s. Output Current
Vin：5.6V
Vin：9.6V
Vin：14V
Fig. 12-3-8. Efficiency v.s. Output Current
Ripple noise voltage
Ripple noise voltage (mVp-p)
25
20
15
10
5
0
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28
Iout（Ａ）
Vin：5.6V
Vin：9.6V
Vin：14V
Fig. 12-3-9. Ripple Voltage v.s. Output Current
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
19
12. 3. 4. Vout=1.5V (MPDRX304S)
（Ta=25℃, Cin= GRM32ER71C226KE15L×2, Cout=GRM32EB30J107ME16L×2, Rtrim=4737Ω）
Efficiency
1.545
90
1.530
87
Efficiency（％）
Vout（V）
Load Reguration
1.515
1.500
1.485
84
81
1.470
78
1.455
75
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28
Iout（Ａ）
Vin：5.6V
Vin：9.6V
Iout（Ａ）
Vin：14V
Fig. 12-3-10. Output Voltage v.s. Output Current
Vin：5.6V
Vin：9.6V
Vin：14V
Fig. 12-3-11. Efficiency v.s. Output Current
Ripple noise voltage
Ripple noise voltage (mVp-p)
25
20
15
10
5
0
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28
Iout（Ａ）
Vin：5.6V
Vin：9.6V
Vin：14V
Fig. 12-3-12. Ripple Voltage v.s. Output Current
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
20
12. 3. 5. Vout=1.2V (MPDRX304S)
（Ta=25℃, Cin= GRM32ER71C226KE15L×2, Cout=GRM32EB30J107ME16L×2, Rtrim=16453kΩ）
Efficiency
1.236
90
1.224
87
Efficiency（％）
Vout（V）
Load Reguration
1.212
1.200
1.188
84
81
1.176
78
1.164
75
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28
Iout（Ａ）
Iout（Ａ）
Vin：5.6V
Vin：9.6V
Vin：14V
Fig. 12-3-13. Output Voltage v.s. Output Current
Vin：5.6V
Vin：9.6V
Vin：14V
Fig. 12-3-14. Efficiency v.s. Output Current
Ripple noise voltage
Ripple noise voltage (mVp-p)
25
20
15
10
5
0
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28
Iout（Ａ）
Vin：5.6V
Vin：9.6V
Vin：14V
Fig. 12-3-15. Ripple Voltage v.s. Output Current
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
21
12. 3. 6. Vout=0.8V (MPDRX304S)
（Ta=25℃, Cin= GRM32ER71C226KE15L×2, Cout=GRM32EB30J107ME16L×2, Rtrim=3394900Ω）
Efficiency
0.824
90
0.816
87
Efficiency（％）
Vout（V）
Load Reguration
0.808
0.800
0.792
84
81
0.784
78
0.776
75
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28
Iout（Ａ）
Iout（Ａ）
Vin：5.6V
Vin：9.6V
Vin：14V
Fig. 12-3-16. Output Voltage v.s. Output Current
Vin：5.6V
Vin：9.6V
Vin：14V
Fig. 12-3-17. Efficiency v.s. Output Current
Ripple noise voltage
Ripple noise voltage (mVp-p)
25
20
15
10
5
0
0
2
4
6
8 10 12 14 16 18 20 22 24 26 28
Iout（Ａ）
Vin：5.6V
Vin：9.6V
Vin：14V
Fig. 12-3-18. Ripple Voltage v.s. Output Current
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
22
13. Notice
13.1. Please do not use a connector or a socket for connection with your board of this product.
Electrical performance may be deteriorated the influence of contact resistance.
Please be sure to mount this product with solder.
13.2. Be sure to provide an appropriate fail-safe function on your product to prevent a second damage that
may be caused by the abnormal function or the failure of our product.
13.3. Input / Output capacitor
When a inductance or a switch devise are connected to the input line, or when you use a power supply with
output inductance as the input voltage source, the input voltage of the DC-DC converter will be fluctuated.
By this input voltage fluctuation, the transient load response of the DC-DC converter may be deteriorated or
abnormal oscillation may occur. So please confirm normal operation on each application.
Please use external input capacitor in order to decrease inductance of input line.
13. 4. Wiring of input / output capacitor
In the case of input / output capacitor connection, in order to reduce electrical noise, please design PCBs
with consideration of the following item.
①.Please be sure to check normal operation on your system.
②.Please use low impedance capacitors with good high frequency characteristic.
③.Please shorten those leads of each capacitor as much as possible, and make sure the lead
Inductance low.
④.Both input-side and output side, please make the wiring loop between plus and minus as small as
possible.The influence of leakage inductance can be reduced.
⑤.Please design the print pattern of the main circuit as wide and short as possible.
Make wiring roop small
Make wiring roop small
+Vin
+Vin
+Vout
DC-DC
Converter
+Vout
+Vin
Load
-Vin
C1
GND
C2
shorten the leads and pattern
shorten the leads and pattern
13.5. This product should not be operated in parallel or in series.
13.6. Inrush current protection is not a feature of this product.
Please be careful that surge voltage caused by wiring indcutance etc. may make the product damage when input
voltage is applied suddenly to the product.
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
23
13.7. Please connect the input terminal with proper polarity. If you connect wrong polarity, the DC-DC
Converter may be broken. In the case of the DC-DC Converter is damaged, abnormal input current may
flow in, and abnormal overheat of the DC-DC Converter, or some damage of your products may occur.
Please use a diode and a fuse to as following figure.
fuse
+
+
IN
OUT
-
-
+
Load
diode
※Please select diode and fuse after confirming the operation.
13.8. Cleaning
Please use no-cleaning type flux and do not wash this product.
13.9. Storage
13.9.1. Please store the products in room where the temperature/humidity is stable and direct sunlight cannot come
in, and use the products within 6 months after delivery.
Please avoid damp and heat or such places where the temperature greatly changes, as water may condense
on this product, and the quality of characteristics may be reduced, and/or be the solderability may be
degraded.
If this product needs to be stored for a long time (more than 1 year), this product may be degraded in
solderability and/or corroded. Please test the solderability of this product regularly.
Baking before reflow process is unnecessary to store the products under 30℃,60%RH or less up to 6
months.
In case the storage condition is over above mentioned, if these are unpacked condition, please bake them at
125℃±5℃/24hour. If these are packed in a tape, please bake them before soldering at 60℃±5℃/168hour.
13.9.2. Please do not store this product in places such as :
A dusty place, a place exposed directly to sea breeze, or in an atmosphere containing corrosive gas
(Cl2,NH3,SO2,NOX and so on).
13.10. Operational Environment and Operational Conditions
13.10.1. Operational Environment
The products are not waterproof, chemical-proof or rust-proof.
In order to prevent leakage of electricity and abnormal temperature increase of the products, do not use the
products under the following circumstances:
(1) in an atmosphere containing corrosive gas (Cl2, NH3, SO2, NOX and so on).
(2) in a dusty place.
(3) in a place exposed to direct sunlight.
(4) in such a place where water splashes or in such a humid place where water condenses.
(5) in a place exposed to sea breeze.
(6) in any other places similar to the above (1)through (5).
13.10.2. Operational Conditions
Please use the products within specified values (power supply, temperature, input, output and load
condition, and so on). Input voltage drop for line impedance, so please make sure that input voltage is
included in specified values.
If you use the products over the specified values, it may break the products, reduce the quality, and even if
the products can endure the condition for short time, it may cause degradation of the reliability.
Also please take care that the external voltage over output voltage of DC-DC Converter does not applies to
output of this DC-DC Converter.
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
MPDRX303S/MPDRX304S DATA Sheet
24
13.10.3. Note prior to use
If you apply high static electricity, over rated voltage or reverse voltage to the products, it may cause defects
in the products or degrade the reliability.
Please avoid the following items:
(1) over rating power supply, reverse power supply or not-enough connection of 0 V(DC) line.
(2) electrostatic discharge by production line and/or operator.
(3) electrified product by electrostatic induction.
Do not give an excessive mechanical shock.
If you drop the products on the floor, etc., it may occur a crack to the core of inductors and monolithic
ceramic capacitors.
Do not give a strong shock such as a drop in handling.
13.11. Transportation
If you transport the products, please pack them so that the package will not be damaged by mechanical
vibration or mechanical shock, and please educate and guide a carrier to prevent rough handling.
If you transport the products to overseas (in particular, by sea), it is expected that the transportation
environment will be the worst, so please pack the products, in the package designed on the consideration of
mechanical strength, vibration-resistant and humidity-resistant. The package of the products which Murata sells
in Japan, may not resist over seas transport.
Please consult us if you are to use the Murata package of the products sold in Japan for transport to overseas.
!
Note
1. Murata recommends that customers ensure that the evaluation and testing of these devices are completed
with this product actually assembled on their product.
2. Please contact our main sales office or nearby sales office before using our products for the applications
listed below which require especially high reliability for the prevention of defects which might directly
cause damage to the third party’s life, body or property or this products for any other applications that
described in the above.
①Aircraft equipment
②Aerospace equipment
③Undersea equipment
④Power plant control equipment
⑤Medical equipment
⑥Transportation equipment (vehicles, trains, ships, etc.)
⑦Traffic signal equipment
⑧Disaster prevention /crime prevention equipment
⑨Data-processing equipment
⑩Application of similar complexity and/or reliability requirements to the applications listed in the above.
3. If you have any concerned materials other than RoHS directive, please contact us.
4. About the written contents, since changing without a preliminary
announcement for improvement and supply are sometimes stopped, please confirm in case of ordering.
If written contents are unknown, please ask to our main sales office or nearby sales office.
Note:
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
specifications or transact the approval sheet for product specifications before ordering.
2016.7.21
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