Motor de Búsqueda de Datasheet de Componentes Electrónicos
Selected language     Spanish  ▼

Delete All
ON OFF
ALLDATASHEET.ES

X  

Preview PDF Download HTML

RT2519W Datasheet(PDF) 10 Page - Richtek Technology Corporation

No. de Pieza. RT2519W
Descripción  1A, Low Noise, Ultra High PSRR, Low-Dropout Linear Regulator
Descarga  13 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Fabricante  RICHTEK [Richtek Technology Corporation]
Página de inicio  http://www.richtek.com
Logo 

RT2519W Datasheet(HTML) 10 Page - Richtek Technology Corporation

 
Zoom Inzoom in Zoom Outzoom out
 10 / 13 page
background image
RT2519W
10
DS2519W-00 May 2019
www.richtek.com
©
Copyright 2019 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
The RT2519W output voltage will be closed to zero when
output short circuit occurs as shown in Figure 1. It can
reduce the chip temperature and provides maximum safety
to end users when output short circuit occurs.
The junction temperature should never exceed the
absolute maximum junction temperature TJ(MAX), listed
under Absolute Maximum Ratings, to avoid permanent
damage to the device. The maximum allowable power
dissipation depends on the thermal resistance of the IC
package, the PCB layout, the rate of surrounding airflow,
and the difference between the junction and ambient
temperatures. The maximum power dissipation can be
calculated using the following formula :
PD(MAX) = (TJ(MAX)
− TA) / θJA
where TJ(MAX) is the maximum junction temperature, TA is
the ambient temperature, and
θJA is the junction-to-ambient
thermal resistance.
For continuous operation, the maximum operating junction
temperature indicated under Recommended Operating
Conditions is 125
°C. The junction-to-ambient thermal
resistance,
θJA, is highly package dependent. For a
VDFN-8AL 3x3 package, the thermal resistance,
θJA, is
30.2
°C/Won a standard JEDEC 51-7 high effective-thermal-
conductivity four-layer test board. The maximum power
dissipation at TA = 25
°C can be calculated as below :
PD(MAX) = (125
°C − 25°C) / (30.2°C/W) = 3.31W for a
VDFN-8AL 3x3 package.
The maximum power dissipation depends on the operating
ambient temperature for the fixed TJ(MAX) and the thermal
resistance,
θJA. The derating curves in Figure 2 allows
Figure 1. Short-Circuit Protection when Output Short-
Circuit Occurs
VOUT Short to GND
VOUT
IOUT
IC Temperature
ILIM’
the designer to see the effect of rising ambient temperature
on the maximum power dissipation.
Figure 2. Derating Curve of Maximum Power Dissipation
0.0
0.8
1.6
2.4
3.2
4.0
0
25
50
75
100
125
Ambient Temperature (°C)
Four-Layer PCB


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13 


Datasheet Download




Enlace URL




Privacy Policy
ALLDATASHEET.ES
Does ALLDATASHEET help your business so far?  [ DONATE ]  

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Favorito   |   Intercambio de Enlaces   |   Lista de Fabricantes
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn