NCP511SN25T1G ON Semiconductor, NCP511SN25T1G Datasheet - Page 8

• Manufacturer Part Number: NCP511SN25T1G
• Description: IC REG LDO 150MA 2.5V SOT23-5
• Manufacturer: ON Semiconductor

Specifications of NCP511SN25T1G

• Regulator Topology: Positive Fixed
• Voltage - Output: 2.5V
• Voltage - Input: Up to 6V
• Voltage - Dropout (typical): 0.11V @ 100mA
• Number Of Regulators: 1
• Current - Output: 150mA (Min)
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-5, TSOT-5, TSOP-5
• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 6 V
• Output Voltage: 2.5 V
• Output Type: Fixed
• Dropout Voltage (max): 0.2 V at 100 mA
• Output Current: 150 mA
• Line Regulation: 3.5 mV / V
• Load Regulation: 0.8 mV / mA
• 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
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Details
• Other names: NCP511SN25T1GOSTR

shown in Figure 16.
Input Decoupling (C1)
recommended and should be connected close to the NCP511
package. Higher values and lower ESR will improve the
overall line transient response.
Output Decoupling (C2)
specific Equivalent Series Resistance (ESR) or a minimum
output current. Capacitors exhibiting ESRs ranging from a
few mW up to 3.0 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 devices. Larger
values improve noise rejection and load regulation transient
response.
Enable Operation
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
When the impedance of these lines is high, there is a chance
to pick up noise or cause the regulator to malfunction.
as close as possible to the circuit, and make leads a short as
possible.
Unregulated
Battery or
A typical application circuit for the NCP511 series is
A 1.0 mF capacitor either ceramic or tantalum is
The NCP511 is a stable Regulator and does not require any
The enable pin will turn on or off the regulator. These
Please be sure the V
Set external components, especially the output capacitor,
Voltage
OFF
ON
Figure 16. Typical Application Circuit
C1
+
in
and GND lines are sufficiently wide.
1
2
3
in
.
5
4
APPLICATIONS INFORMATION
http://onsemi.com
+
C2
V
out
NCP511
8
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 NCP511 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 NCP511 can dissipate up to
400 mW @ 25°C.
from the following equation:
current from the data sheet is 40 mA. For an NCP511SN30T1
(3.0 V), the maximum input voltage will then be 5.6 V.
0.01
100
0.1
As power across the NCP511 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 NCP511 can be calculated
or
If a 150 mA output current is needed then the ground
10
1
0
Figure 17. Output Capacitor vs. Output Current
P tot + [ V in * I gnd (I out ) ] ) [ V in * V out ] * I out
25
V inMAX +
STABLE
UNSTABLE
I
O
PD +
, OUTPUT CURRENT (mA)
50
T J(max) *T A
P tot ) V out * I out
I gnd ) I out
75
R qJA
C
T
V
A
in
out
100
= 25°C to 125°C
= up to 6.0 V
= 1 mF to 10 mF
125
150