MPDTY301S Murata Electronics North America, MPDTY301S Datasheet - Page 6

• Manufacturer Part Number: MPDTY301S
• Description: CONV DC/DC 23.1W .8-3.3VOUT SMT
• Manufacturer: Murata Electronics North America
• Series: MPDr
• Type: Point of Load (POL) Non-Isolated with UVLOr

Specifications of MPDTY301S

• Output: 0.8 ~ 3.3V
• Number Of Outputs: 1
• Power (watts): 23W
• Mounting Type: Surface Mount
• Voltage - Input: 4.5 ~ 5.5V
• Package / Case: 22-DIP SMD Module
• 1st Output: 0.8 ~ 3.3 VDC @ 7A
• Size / Dimension: 1.09" L x 0.61" W x 0.17" H (27.8mm x 15.4mm x 4.2mm)
• Power (watts) - Rated: 23.1W
• Operating Temperature: -40°C ~ 85°C
• Efficiency: 94%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• Other names: 490-4572; 490-4572-1; 490-4572-1

2010.12.29
1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’ s specifications are subject to change or our
2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product
7.2 ON/OFF control
7.3. External output bias condition
7.4. Input/output filter condition
products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering.
specifications or transact the approval sheet for product specifications before ordering.
External bias
ON/OFF function
The DC-DC Converter can be inactive by using ON/OFF function.
This function is effective when the sequence of a power supply system is constituted.
And it can be used for power-saving control.
In case of not using ON/OFF function
In case of not using ON/OFF function, please left open ON/OFF-pin(12pin).
If ON/OFF pin is connected to Vin with low impedance line, OCP and OTP shall be inactive.
ON/OFF control method
Between ON/OFF-pin(12pin) and GND-pin
Note:
External bias voltage level.
External bias current level.
External output bias measurement condition
Following input/output filters are recommended.
When the isolated OBP in the above Fig is MPD6D128S, or some OBP that has less output inductance than
1.6μH and much output capacitance than 200μF.
When the isolated OBP in the above Fig is MPD6D108S.
Open……Output Voltage=ON
Short……Output Voltage=OFF
Isolated OBP
L1 0.15uH
C1 20uF(MPDTY301S)
L1 0.35uH
C1 10uF(MPDTY301S)
C2 = 100uF
C2 = 100uF + (C3 – 100uF )×0.5
Vin=5.0V(MPDTY301S)
Vin=3.3V(MPDTY302S)
V
V
L1
C1
A
20uF(MPDTY302S)
47uF(MPDTY302S)
L2 0.35uH
L2 0.35uH
Less than Voadj
Less than DC 15.6A
SW
L2
I
C2
(When C3 = 47～100uF)
(When C3 = 100～1000uF)
example
External bias voltage shall be measured when SW left open.
External bias current shall be measured when SW left short.
MPDTY301S
MPDTY302S
or
L3 0.15uF or short
C2 100uF
L3 0.15uF or short
C3 47～1000uF
ON/OFF
L3
MPDTY301S,MPDTY302S DATA Sheet
12
TY301S/302S
6-10,18-21
C3 47～1000uF
C3
GND
2010.12.29
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