Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

RT9018B18PSP Datasheet(PDF) 10 Page - Richtek Technology Corporation

Part # RT9018B18PSP
Description  Maximum 3A, Ultra Low Dropout Regulator
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9018B18PSP Datasheet(HTML) 10 Page - Richtek Technology Corporation

Back Button RT9018B18PSP Datasheet HTML 4Page - Richtek Technology Corporation RT9018B18PSP Datasheet HTML 5Page - Richtek Technology Corporation RT9018B18PSP Datasheet HTML 6Page - Richtek Technology Corporation RT9018B18PSP Datasheet HTML 7Page - Richtek Technology Corporation RT9018B18PSP Datasheet HTML 8Page - Richtek Technology Corporation RT9018B18PSP Datasheet HTML 9Page - Richtek Technology Corporation RT9018B18PSP Datasheet HTML 10Page - Richtek Technology Corporation RT9018B18PSP Datasheet HTML 11Page - Richtek Technology Corporation RT9018B18PSP Datasheet HTML 12Page - Richtek Technology Corporation  
Zoom Inzoom in Zoom Outzoom out
 10 / 12 page
background image
RT9018A/B
10
DS9018A/B-04
September 2007
www.richtek.com
PD (MAX) = (125
°C − 25°C) / (75°C/W) = 1.33W (SOP-8
Exposed Pad on the minimum layout)
Layout Considerations
The thermal resistance
θJA of SOP-8 (Exposed Pad) is
determined by the package design and the PCB design.
However, the package design had been designed. If
possible, it
’ s useful to increase thermal performance by
the PCB design. The thermal resistance
θJA can be
decreased by adding a copper under the exposed pad of
SOP-8 (Exposed Pad) package.
As shown in Figure 3, the amount of copper area to which
the SOP-8 (Exposed Pad) is mounted affects thermal
performance. When mounted to the standard SOP-8
(Exposed Pad) pad (Figure 3.a),
θJA is 75°C/W. Adding
copper area of pad under the SOP-8 (Exposed Pad) Figure
3.b) reduces the
θJA to 64°C/W. Even further, increasing
the copper area of pad to 70mm2 (Figure 3.e) reduces the
θJA to 49°C/W.
The maximum power dissipation depends on operating
ambient temperature for fixed TJ(MAX) and thermal
resistance
θJA . For RT9018A/B packages, the Figure 4
of de-rating curves allows the designer to see the effect of
rising ambient temperature on the maximum power
allowed.
Figure 3 (a). Minimum Footprint,
θJA = 75°C/W
Figure 3 (b). Copper Area = 10mm2,
θJA= 64°C/W
Figure 3 (c). Copper Area = 30mm2,
θJA= 54°C/W
Figure 4. De-rating Curves
Figure 3. Thermal Resistance vs. Different Cooper Area
Layout Design
Figure 3 (d). Copper Area = 50mm2,
θJA = 51°C/W
Figure 3 (e). Copper Area = 70mm2,
θJA = 49°C/W
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
2.2
0
20
40
60
80
100
120
140
Ambient Temperature (°C)
JEDEC 4-Layers PCB
70mm
2
50mm
2
30mm
2
10mm
2
Minimum Layout
Copper Area


Similar Part No. - RT9018B18PSP

ManufacturerPart #DatasheetDescription
logo
Richtek Technology Corp...
RT9018C RICHTEK-RT9018C Datasheet
208Kb / 13P
   Maximum 3A, Ultra Low Dropout Regulator
September 2021
RT9018C-XXGQW RICHTEK-RT9018C-XXGQW Datasheet
208Kb / 13P
   Maximum 3A, Ultra Low Dropout Regulator
September 2021
RT9018C-XXGSP RICHTEK-RT9018C-XXGSP Datasheet
208Kb / 13P
   Maximum 3A, Ultra Low Dropout Regulator
September 2021
RT9018C-XXZQW RICHTEK-RT9018C-XXZQW Datasheet
208Kb / 13P
   Maximum 3A, Ultra Low Dropout Regulator
September 2021
RT9018C-XXZSP RICHTEK-RT9018C-XXZSP Datasheet
208Kb / 13P
   Maximum 3A, Ultra Low Dropout Regulator
September 2021
More results

Similar Description - RT9018B18PSP

ManufacturerPart #DatasheetDescription
logo
Richtek Technology Corp...
RT9018C RICHTEK-RT9018C Datasheet
208Kb / 13P
   Maximum 3A, Ultra Low Dropout Regulator
September 2021
logo
Gamma Microelectronics ...
GM66300 GAMMA-GM66300 Datasheet
346Kb / 11P
   3A ULTRA LOW-DROPOUT REGULATOR
logo
Unisonic Technologies
L11831AG-XX-SH2-R UTC-L11831AG-XX-SH2-R Datasheet
215Kb / 6P
   Maximum 3A low-dropout voltage regulator
logo
Analog Intergrations Co...
AIC1185 AIC-AIC1185 Datasheet
241Kb / 13P
   3A Ultra Low Dropout Linear Regulator
logo
Advanced Power Electron...
APE8981 A-POWER-APE8981_14 Datasheet
104Kb / 9P
   3A ULTRA LOW DROPOUT LINEAR REGULATOR
logo
Sipex Corporation
SPX1582 SIPEX-SPX1582_06 Datasheet
204Kb / 7P
   3A Ultra Low Dropout Voltage Regulator
logo
uPI Group Inc.
UP8801S UPI-UP8801S Datasheet
198Kb / 15P
   3A Ultra Low Dropout Linear Regulator
logo
Richtek Technology Corp...
RT9059 RICHTEK-RT9059 Datasheet
182Kb / 12P
   3A, Ultra-Low Dropout Voltage Regulator
logo
Alpha & Omega Semicondu...
AOZ2003 AOSMD-AOZ2003 Datasheet
1Mb / 12P
   3A Ultra Low Dropout Linear Regulator
logo
Eutech Microelectronics...
EUP7963 EUTECH-EUP7963 Datasheet
258Kb / 13P
   3A Ultra Low-Dropout Linear Regulator
More results


Html Pages

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


Datasheet Download

Go To PDF Page


Link URL




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

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
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
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com