NCP512SQ27T2G ON Semiconductor, NCP512SQ27T2G Datasheet - Page 7

• Manufacturer Part Number: NCP512SQ27T2G
• Description: IC REG VOLTAGE 180MA 2.7V SC88A
• Manufacturer: ON Semiconductor

Specifications of NCP512SQ27T2G

• Regulator Topology: Positive Fixed
• Voltage - Output: 2.7V
• Voltage - Input: Up to 6V
• Voltage - Dropout (typical): 0.2V @ 80mA
• Number Of Regulators: 1
• Current - Output: 200mA
• Current - Limit (min): -
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 6-TSSOP (5 lead), SC-88A, SOT-353
• Number Of Outputs: 1
• Input Voltage Max: 6 V
• Output Voltage: 2.7 V
• Output Type: Fixed
• Dropout Voltage (max): 300 mV
• Output Current: 200 mA
• Load Regulation: 0.3 mV
• Voltage Regulation Accuracy: 2 %
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

shown in Figure 1, front page.
Input Decoupling (C1)
recommended and should be connected close to the NCP512
package. Higher values and lower ESR will improve the
overall line transient response.
TDK capacitor: C2012X5R1C105K, or C1608X5R1A105K
Output Decoupling (C2)
specific Equivalent Series Resistance (ESR) or a minimum
output current. Capacitors exhibiting ESRs ranging from a
few mW up to 5.0 W can thus safely be used. The minimum
decoupling value is 1.0 mF and can be augmented to fulfill
stringent load transient requirements. The regulator accepts
ceramic chip capacitors as well as tantalum capacitors.
Larger values improve noise rejection and load regulation
transient response.
TDK capacitor: C2012X5R1C105K, C1608X5R1A105K,
or C3216X7R1C105K
Enable Operation
and turn off the regulator when pulled low. These limits of
threshold are covered in the electrical specification section
of this data sheet. If the enable is not used then the pin should
be connected to V
Hints
wide. When the impedance of these lines is high, there is a
chance to pick up noise or cause the regulator to
malfunction.
A typical application circuit for the NCP512 series is
A 1.0 mF capacitor either ceramic or tantalum is
The NCP512 is a stable regulator and does not require any
The enable pin will turn on the regulator when pulled high
Please be sure the Vin and GND lines are sufficiently
in
.
APPLICATIONS INFORMATION
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7
as close as possible to the circuit, and make leads as short as
possible.
Thermal
necessary to provide some thermal relief. The maximum
power dissipation supported by the device is dependent
upon board design and layout. Mounting pad configuration
on the PCB, the board material and also the ambient
temperature effect the rate of temperature rise for the part.
This is stating that when the NCP512 has good thermal
conductivity through the PCB, the junction temperature will
be relatively low with high power dissipation applications.
given by:
maximum 125°C, then the NCP512 can dissipate up to
250 mW @ 25°C.
from the following equation:
current from the data sheet is 40 mA. For an NCP512 (3.0 V),
the maximum input voltage will then be 6.12 V.
Set external components, especially the output capacitor,
As power across the NCP512 increases, it might become
The maximum dissipation the package can handle is
If junction temperature is not allowed above the
The power dissipated by the NCP512 can be calculated
or
If an 80 mA output current is needed then the ground
P tot + V in * I gnd (I out ) ) [ V in * V out ] * I out
V inMAX +
PD +
T J(max) *T A
P tot ) V out * I out
I gnd ) I out
R qJA