MPDTY301S Murata Electronics North America, MPDTY301S Datasheet - Page 5

• 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
7. Operation in information
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
7.1 Output Voltage Adjustment
＜RVAR calculation example＞
【MPDTY301S】
【MPDTY302S】
Internal circuit
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.
0.8V～3.3V（MPDTY301S） ，0.8V～2.5V（MPDTY302S）
The output voltage can be adjusted ranging by connecting resistors between VAR-pin(11pin) to GND-pin.
The following equation gives the required external-resistor value to adjust the output voltage to Voadj.
It is strictly recommended to evaluate the characteristics of DC-DC Converter at your board conditions.
Note:
RVAR
RVAR pin
Voadj [V]
Voadj [V]
3.3
2.5
2.0
1.8
1.5
1.2
1.0
0.8
2.5
2.0
1.8
1.5
1.2
1.0
0.8
10kΩ(MPDTY301S)
15kΩ(MPDTY302S)
MPDTY301S/302S
Calculated RVAR[Ω]
Calculated RVAR[Ω]
27714.3
122000
117000
5529.4
12000
16400
56000
22714
51000
11400
529.4
7000
560
∞
∞
33kΩ
Error amp
V
o
u
t
RVAR example
RVAR example
100kΩ＋18kΩ
5.1kΩ＋430Ω
6.8kΩ＋200Ω
16kΩ＋390Ω
27kΩ＋680Ω
120kΩ＋2kΩ
11kΩ＋390Ω
22kΩ＋680Ω
560Ω
12kΩ
56kΩ
Open
510Ω
51kΩ
Open
【MPDTY301S】
【MPDTY302S】
RVAR＝
RVAR＝
Voadj[V]－0.8[V]
Voadj[V]－0.8[V]
26400
26400
MPDTY301S,MPDTY302S DATA Sheet
－10000[Ω]
－15000[Ω]
2010.12.29
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