Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

R1232D301A Datasheet(PDF) 11 Page - RICOH electronics devices division

Part # R1232D301A
Description  PWM STEP-DOWN DC/DC CONVERTER WITH SYNCHRONOUS RECTIFIER
Download  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  RICOH [RICOH electronics devices division]
Direct Link  http://www.ricoh.com
Logo RICOH - RICOH electronics devices division

R1232D301A Datasheet(HTML) 11 Page - RICOH electronics devices division

Back Button R1232D301A Datasheet HTML 7Page - RICOH electronics devices division R1232D301A Datasheet HTML 8Page - RICOH electronics devices division R1232D301A Datasheet HTML 9Page - RICOH electronics devices division R1232D301A Datasheet HTML 10Page - RICOH electronics devices division R1232D301A Datasheet HTML 11Page - RICOH electronics devices division R1232D301A Datasheet HTML 12Page - RICOH electronics devices division R1232D301A Datasheet HTML 13Page - RICOH electronics devices division R1232D301A Datasheet HTML 14Page - RICOH electronics devices division R1232D301A Datasheet HTML 15Page - RICOH electronics devices division Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 24 page
background image
R1232D
11
In the continuous mode, when Equation 1 is solved for ton and assumed that the solution is tonc
tonc
=t×VOUT/VIN............................................................................................................. Equation 2
When the ton
=tonc, the mode is the continuous mode.
OUTPUT CURRENT AND SELECTION OF EXTERNAL COMPONENTS
When P-channel Tr. of LX is ON:
(Wherein, Ripple Current P-P value is described as IRP, ON resistance of P-channel Tr. and N-channel Tr. of LX
are respectively described as RONP and RONN, and the DC resistor of the inductor is described as RL.)
VIN
=VOUT+(RONP+RL)×IOUT+L×IRP/ton .............................................................................. Equation 3
When P-channel Tr. of LX is "OFF"(N-channel Tr. is "ON"):
L
×IRP/toff=VF+VOUT+RONN×IOUT ....................................................................................... Equation 4
Put Equation 4 to Equation 3 and solve for ON duty of P-channel transistor, Don
=ton/(toff+ton),
DON
=(VOUT−RONN×IOUT+RL×IOUT)/(VIN+RONN×IOUT−RONP×IOUT) ........................................... Equation 5
Ripple Current is as follows;
IRP
=(VIN−VOUT−RONP×IOUT−RL×IOUT)×DON/fosc/L .............................................................. Equation 6
wherein, peak current that flows through L, and LX Tr. is as follows;
ILmax
=IOUT+IRP/2 .......................................................................................................... Equation 7
Consider ILmax, condition of input and output and select external components.
The above explanation is directed to the calculation in an ideal case in continuous mode.


Similar Part No. - R1232D301A

ManufacturerPart #DatasheetDescription
logo
Recom International Pow...
R123.3D RECOM-R123.3D Datasheet
83Kb / 2P
   EUROLINE - DC/DC - CONVERTER
logo
RICOH electronics devic...
R1230D RICOH-R1230D Datasheet
881Kb / 20P
   PWM/VFM Step-down DC/DC Converter with Synchronous Rectifier
R1230D001A RICOH-R1230D001A Datasheet
881Kb / 20P
   PWM/VFM Step-down DC/DC Converter with Synchronous Rectifier
R1230D001A-TL RICOH-R1230D001A-TL Datasheet
881Kb / 20P
   PWM/VFM Step-down DC/DC Converter with Synchronous Rectifier
R1230D001A-TR RICOH-R1230D001A-TR Datasheet
881Kb / 20P
   PWM/VFM Step-down DC/DC Converter with Synchronous Rectifier
More results

Similar Description - R1232D301A

ManufacturerPart #DatasheetDescription
logo
RICOH electronics devic...
R1234D RICOH-R1234D Datasheet
915Kb / 26P
   PWM/VFM Step-Down DC/DC CONVERTER with Synchronous Rectifier
R1230D RICOH-R1230D Datasheet
881Kb / 20P
   PWM/VFM Step-down DC/DC Converter with Synchronous Rectifier
logo
Linear Technology
LT1612 LINER-LT1612_1 Datasheet
252Kb / 12P
   Synchronous, Step-Down 800kHz PWM DC/DC Converter
LT1612 LINER-LT1612_15 Datasheet
257Kb / 12P
   Synchronous, Step-Down 800kHz PWM DC/DC Converter
LT1612 LINER-LT1612 Datasheet
176Kb / 8P
   Synchronous, Step-Down 800kHz PWM DC/DC Converter
logo
List of Unclassifed Man...
RT9226B ETC-RT9226B Datasheet
139Kb / 6P
   SYNCHRONOUS PWM STEP-DOWN DC/DC CONVERTER CONTROLLER
logo
Diodes Incorporated
AP3405 DIODES-AP3405 Datasheet
574Kb / 9P
   600mA Step-down DC/DC Converter with Synchronous Rectifier
AP3403 DIODES-AP3403 Datasheet
598Kb / 9P
   600mA STEP-DOWN DC/DC CONVERTER WITH SYNCHRONOUS RECTIFIER
logo
Analog Devices
ADP3051 AD-ADP3051 Datasheet
428Kb / 16P
   500 mA PWM Step-Down DC-DC with Synchronous Rectifier
REV. 0
ADP3051 AD-ADP3051_15 Datasheet
437Kb / 16P
   500 mA PWM Step-Down DC-DC with Synchronous Rectifier
Rev. 0
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24


Datasheet Download

Go To PDF Page


Link URL




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

About Alldatasheet   |   Advertisement   |   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