NCP5426SN13T2 ON Semiconductor, NCP5426SN13T2 Datasheet - Page 6

• Manufacturer Part Number: NCP5426SN13T2
• Description: IC REG LDO VIBR MOTR 1.3V SOT235
• Manufacturer: ON Semiconductor

Specifications of NCP5426SN13T2

• Applications: Vibration Motor Driver
• Number Of Outputs: 1
• Current - Output: 150mA
• Voltage - Load: 1.261 V ~ 1.339 V
• Voltage - Supply: 2.6 V ~ 12 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-5, TSOT-5, TSOP-5
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: NCP5426SN13T2OSTR

to correctly use the NCP5426 in an application. The
NCP5426 is designed specifically for use with inductive
loads, typically Vibration Motors. The LDO is capable of
using ceramic and tantalum capacitors. Please refer to
Figure 13 for a typical system schematic.
Input Decoupling
operation. A ceramic or tantalum capacitor with a minimum
value of 1.0 mF is required. Higher values of capacitance and
lower ESR will improve the overall line and load transient
response.
Output Decoupling
normally. A ceramic or tantalum capacitor will suffice. The
selection of the output capacitor is dependant upon several
factors: output current, power up and down delays, inductive
kickback during power up and down. It is recommended the
output capacitor be as close to the output pin and ground pin
for the best system response.
Enable Pin
pin is active high. The internal input resistance of the enable
pin is high which will keep the current very low when the pin
is pulled high. A low threshold voltage permits the
NCP5426 to operate directly from microprocessors or
controllers.
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 the ambient temperature
effect the rate of junction temperature rise for the part. This
is stating that when the NCP5426 has good thermal
conductivity through the PCB, the junction temperature will
be relatively low with high power dissipation applications.
The following description will assist the system designer
A capacitor, C1, is necessary on the input for normal
A capacitor, C2, is required for the NCP5426 to operate
The enable pin will turn on or off the regulator. The enable
As power across the NCP5426 increases, it might become
V
out
V
Resistive Load
out
Motor Load
V
CC
V
CCON
APPLICATIONS INFORMATION
Figure 14. Timing Diagram
http://onsemi.com
NCP5426
6
V
CCOFF
given by:
can dissipate up to 400 mW @ 25°C. The power dissipated
by the NCP5426 can be calculated from the following
equation:
current is extracted from the data sheet curves: 200 mA @
150 mA. For an NCP5426SN18T1 (1.8 V), the maximum
input voltage will then be 4.4 V, good for a 1 Cell Li−ion
battery.
Hints
When the impedance of these lines is high, there is a chance
to pick up noise or cause the regulator to malfunction. Set
external components, especially the output capacitor, as
close as possible to the circuit, and make leads as short as
possible.
OFF
The maximum dissipation the package can handle is
T
or
If a 150 mA output current is needed then the ground
Please be sure the V
J
is not recommended to exceed 125°C. The NCP5426
ON
P tot + [ V in * I GND (I out ) ] ) [ V in * V out ] * I out
Figure 13. Typical Applications Circuit
Enable
GND
N/C
for Driving a Vibration Motor
V inMAX +
V
CCHYST
PD +
V
V
out
in
in
and GND lines are sufficiently wide.
T J(max) *T A
P tot ) V out * I out
Vibration
I GND ) I out
Motor
R qJA
C2
C1
V
CC