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EV8801DJ-00A Datasheet(PDF) 4 Page - Monolithic Power Systems

Part No. EV8801DJ-00A
Description  Low Dropout 150mA Linear Regulator
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Maker  MPS [Monolithic Power Systems]
Homepage  http://www.monolithicpower.com
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EV8801DJ-00A Datasheet(HTML) 4 Page - Monolithic Power Systems

   
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EV8801DJ-00A — LOW DROPOUT 150mA LINEAR REGULATOR
INITIAL RELEASE
NOTICE: MPS believes the information in this document to be accurate and reliable. However, it is subject to change without
notice. Contact MPS for current specifications. MPS encourages users of its products to ensure that third party Intellectual
Property rights are not infringed upon when integrating MPS products into any application. MPS cannot assume any legal
responsibility for any said applications.
EV8801DJ-00A Rev. 1.0
Monolithic Power Systems, Inc.
4
12/6/04
983 University Avenue, Building A, Los Gatos, CA 95032 USA
© 2004 MPS, Inc.
Tel: 408-357-6600
♦ Fax: 408-357-6601 ♦ www.MonolithicPower.com
QUICK START GUIDE
The output voltage of this board is set to 2.85V. The EN pin is connected to VIN with a 10kΩ
resistor for automatic startup. You can connect EN to GND to disable the MP8801.
Attach the positive and the negative ends of the load to the VOUT and GND pins, respectively.
Attach an input voltage (2.7V
≤ VIN ≤ 6.5V) and input ground to the VIN and GND pins,
respectively.
The output voltage (VOUT) can be changed by adding a resistor divider (R1 and R2). A 10kΩ
(
±1%) resistor should be used for the low-side resistor R2 of the voltage divider. The high side
resistor R1 can be determined by the equation:
⎟⎟
⎜⎜
×
=
FB
FB
OUT
V
V
V
2
R
1
R
Where VFB is the OUT feedback threshold voltage equal to 1.222V.
The following table lists the R1 selected values for some typical output voltages:
VOUT (V)
R1 (Ω)
1.25
232
1.5
2.26k
1.8
4.75k
2
6.34k
2.5
10.5k
2.8
13k
3
14.7k
3.3
16.9k
4
22.6k
5
30.9k


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