MP20044-DUAL, ULTRA LOW NOISE, HIGH PSRR, 300mA LINEAR REGULATOR
PCB layout guide
PCB layout is very important to achieve good
regulation, ripple rejection, transient response
and thermal performance. It is highly
recommended to duplicate EVB layout for
optimum performance.
2) Ensure all feedback connections are short
and direct. Place the feedback resistors and
compensation components as close to the
chip as possible.
3) Connect IN, OUT and especially GND
respectively to a large copper area to cool
the chip to improve thermal performance and
long-term reliability.
If change is necessary, please follow these
guidelines and take figure 5 for reference.
1) Input and output bypass ceramic capacitors
are suggested to be put close to the IN Pin
and OUT Pin respectively.
EN1
EN2
EN1
EN2
R2
R1
OUT2
OUT2
OUT1
OUT1
COUT1
COUT2
MP20044
IN
IN
CIN
GND
Top Layer
Figure 5—PCB Layout
MP20044 Rev. 1.0
1/11/2013
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