EV20045DQ-00A
– LOW NOISE, HIGH PSRR, 1A LINE REGULATOR
NOTICE:
The information in this document is subject to change without notice. Please contact MPS for current specifications.
Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS
products into any application. MPS will not assume any legal responsibility for any said applications.
EV20045DQ-00A Rev. 1.0
www.MonolithicPower.com
5
5/2/2018
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.
QUICK START GUIDE (MODIFICATION FOR FIXED OUTPUT)
For modifying the EV20045DQ-00A to accommodate a fixed output voltage version of the MP20045 as
the figure 5:
1. Carefully remove the IC(U1) and replace it with the corresponding fixed output version of the
MP20045 chip.
2. Remove both R1 and R2.
3. Short R1 while leaving R2 open.
4. Attach the positive and negative ends of the load to the VOUT and GND pins, respectively.
5. Attach the Input Voltage (3.5V
≤
V
IN
≤
5.5V) and Input Ground to the VIN and GND pins,
respectively.
6. To enable the MP20045 apply a voltage, 1.5V
≤
V
EN
≤
5.5V, to the EN pin. To disable the
MP20045 apply a voltage, V
EN
< 0.4V, to the EN pin. The EN pin can be connected to V
IN
with a
100k
Ω resistor for automatic startup.
Please refer to the datasheet for the detailed information of the different output voltage option of
MP20045.