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Microchip Technology Microstick for the 5V PIC24F K-series DM240013-2 DM240013-2 Data Sheet

Product codes
DM240013-2
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 2013 Microchip Technology Inc.
 
DS30003030B-page 31
PIC24FV16KM204 FAMILY
2.4
Voltage Regulator Pin (V
CAP
)
Some of the PIC24FV16KM devices have an internal
voltage regulator. These devices have the voltage
regulator output brought out on the V
CAP
 pin. On the
PIC24F K devices with regulators, a low-ESR (< 5Ω)
capacitor is required on the V
CAP
 pin to stabilize the
voltage regulator output. The V
CAP
 pin must not be
connected to V
DD
 and must use a capacitor of 10 µF
connected to ground. The type can be ceramic or
tantalum. Suitable examples of capacitors are shown in
. Capacitors with equivalent specifications can
be used. 
Designers may use 
 to evaluate ESR
equivalence of candidate devices. 
The placement of this capacitor should be close to V
CAP
.
It is recommended that the trace length not exceed
0.25 inch (6 mm). Refer to 
 for additional information.
Refer to
 for
information on V
DD
 and V
DDCORE
.
FIGURE 2-3:
FREQUENCY vs. ESR 
PERFORMANCE FOR 
SUGGESTED V
CAP
Note:
This section applies only to
PIC24FV16KM devices with an on-chip
voltage regulator.
10
1
0.1
0.01
0.001
0.01
0.1
1
10
100
1000 10,000
Frequency (MHz)
ES
R (
)
Note:
Typical data measurement at +25°C, 0V DC bias.
TABLE 2-1:
SUITABLE CAPACITOR EQUIVALENTS
Make
Part #
Nominal 
Capacitance
Base Tolerance
Rated Voltage
Temp. Range
TDK
C3216X7R1C106K
10 µF
±10%
16V
-55 to +125ºC
TDK
C3216X5R1C106K
10 µF
±10%
16V
-55 to +85ºC
Panasonic
ECJ-3YX1C106K
10 µF
±10%
16V
-55 to +125ºC
Panasonic
ECJ-4YB1C106K
10 µF
±10%
16V
-55 to +85ºC
Murata
GRM32DR71C106KA01L
10 µF
±10%
16V
-55 to +125ºC
Murata
GRM31CR61C106KC31L
10 µF
±10%
16V
-55 to +85ºC