NCP565MN33T2G ON Semiconductor, NCP565MN33T2G Datasheet - Page 12

• Manufacturer Part Number: NCP565MN33T2G
• Description: IC REG LDO 1.5A 3.3V 6-DFN
• Manufacturer: ON Semiconductor

Specifications of NCP565MN33T2G

• Regulator Topology: Positive Fixed
• Voltage - Output: 3.3V
• Voltage - Input: Up to 9V
• Voltage - Dropout (typical): 0.9V @ 1.5A
• Number Of Regulators: 1
• Current - Output: 1.5A
• Current - Limit (min): 1.6A
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 6-VSDFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: NCP565MN33T2G; NCP565MN33T2GOSTR

Protection Diodes
regulator it is sometimes necessary to add protection diodes.
If the input voltage of the regulator gets shorted, the output
capacitor will discharge into the output of the regulator. The
discharge current depends on the value of the capacitor, the
output voltage and the rate at which V
NCP565 linear regulator, the discharge path is through a
large junction and protection diodes are not usually needed.
If the regulator is used with large values of output
capacitance and the input voltage is instantaneously shorted
to ground, damage can occur. In this case, a diode connected
as shown in Figure 24 is recommended.
When large external capacitors are used with a linear
V
Figure 24. Protection Diode for Large
in
C
1
V
GND
in
Output Capacitors
1N4002 (Optional)
NCP565
V
Adj
out
C
Adj
R
R
in
1
2
drops. In the
C
V
out
2
http://onsemi.com
12
Thermal Considerations
that is designed to protect the regulator in the event that the
maximum junction temperature is exceeded. This feature
provides protection from a catastrophic device failure due to
accidental overheating. It is not intended to be used as a
substitute for proper heat sinking. The maximum device
power dissipation can be calculated by:
This series contains an internal thermal limiting circuit
200
180
160
140
120
100
80
60
40
0
50 100 150
COPPER HEAT−SPREADER AREA (mm sq)
Figure 25. Thermal Resistance
DFN 1 oz Cu
P D +
DFN 2 oz Cu
T J(max) * T A
200 250 300 350 400 450 500
SOT−223 1 oz Cu
R qJA
SOT−223 2 oz Cu
D
2
D
PAK 1 oz Cu
2
PAK 2 oz Cu