|
|
PDF SCP51460 Data sheet ( Hoja de datos )
| Número de pieza | SCP51460 | |
| Descripción | High Accuracy Low Noise 20mA LDO Regulator | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de SCP51460 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
|
No Preview Available !
SCP51460
High Accuracy Low Noise
20 mA LDO Regulator
The SCP51460 is a low cost, low power, high accuracy LDO
voltage regulator. This device will supply output current up to 20 mA
at fixed output voltage 3.3 V with excellent regulation characteristics,
making it ideal for precision regulator applications. It is designed to be
stable without output capacitor. This is an important feature, when fast
rise times and PCB space are in concern. The protective features
include Short Circuit Current and Reverse Voltage Protection. The
SCP51460 is packaged in 3 leads surface mount SOT−23 package.
Features
• Fixed Output Voltage 3.3 V
• VOUT Accuracy 1% over 0 to +100°C
• Wide Input Voltage Range up to 28 V
• Low Quiescent Current
• Low Noise
• Reverse Battery Protection
• Stable Without Output Capacitor
• Available in 3 leads SOT−23 Package
• Pb−Free Package is Available
Typical Applications
• Handheld Instruments
• Precision Regulators
• Data Acquisition Systems
• High Accuracy Micropower Supplies
VIN = 4.2 to 28 V
CIN
0.1 mF
VIN VOUT
SCP51460
(3.3 V fixed)
GND
VOUT
3.3 V
http://onsemi.com
SOT−23−3
SN1 SUFFIX
CASE 318
MARKING DIAGRAM
AND PIN ASSIGNMENT
GND
3
D46MG
G
1
VIN
2
VOUT
(Top View)
D46 = Specific Device Code
M = Date Code
G = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
Figure 1. Typical Application Schematics
© Semiconductor Components Industries, LLC, 2010
February, 2010 − Rev. 0
1
Publication Order Number:
SCP51460/D
1 page  
SCP51460
APPLICATIONS INFORMATION
Input Decoupling Capacitor (CIN)
A ceramic or tantalum 0.1 mF capacitor is recommended
and should be connected close to the SCP51460 package.
Higher capacitance and lower ESR will improve the overall
line transient response.
Output Decoupling Capacitor (COUT)
The SCP51460 does not require any output capacitance to
be stable. With no capacitor at the output the device will have
faster VOUT rise time and will occupy less PCB space. In
some applications however the output capacitor could be
added. This will improve the overall transient response.
During the transients capacitors with low ESR (e.g. Ceramic
capacitors) will cause more ringing than the Tantalum or
Aluminum Capacitors.
VIN = 4.2 to 28 V
CIN
0.1 mF
VIN VOUT
SCP51460
(3.3 V fixed)
GND
COUT
VOUT
3.3 V
Table 6 shows the maximum capacitance of COUT for
various load currents to avoid instability.
Table 6.
IOUT =
100 mA
>10 mF
IOUT =
1 mA
>10 mF
IOUT =
10 mA
1 mF
IOUT =
20 mA
0.68 mF
Thermal Characteristics
As power dissipation in the SCP51460 increases, it may
become necessary to provide some thermal relief. The
maximum power dissipation supported by the device is
dependent upon board design and layout. The board material
and the ambient temperature affect the rate of junction
temperature rise for the part. The maximum power
dissipation the SCP51460 can handle is given by:
PD(MAX)
+
[TJ(MAX) *
RqJA
TA]
(eq. 1)
Since TJ is not recommended to exceed 100°C (TJ(MAX)),
then the SCP51460 can dissipate up to 305 mW when the
ambient temperature (TA) is 25°C.
The power dissipated by the SCP51460 can be calculated
from the following equations:
PD [ Vin(IGND@Iout) ) Iout(Vin * Vout) (eq. 2)
or
Vin(MAX)
[
PD(MAX) ) (Vout @
Iout ) IGND
Iout)
(eq. 3)
Hints
Vin and GND printed circuit board traces should be as
wide as possible. When the impedance of these traces is
high, there is a chance to pick up noise or cause the regulator
to malfunction. Place external components, especially the
output capacitor, as close as possible to the SCP51460, and
make traces as short as possible.
ORDERING INFORMATION
Device
Device Code
Package
Shipping†
SCP51460SN33T1G
D46
SOT23−3
(Pb−Free)
3,000 / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specification Brochure, BRD8011/D.
http://onsemi.com
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet SCP51460.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| SCP51460 | High Accuracy Low Noise 20mA LDO Regulator | ON Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |