Electronic Components Datasheet Search
Selected language     English  ▼


MC34063AP1 Datasheet(PDF) 10 Page - ON Semiconductor

Part No. MC34063AP1
Description  1.5 A, Step−Up/Down/ Inverting Switching Regulators
Download  13 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
Logo 

 
 10 page
background image
MC34063A, MC33063A, NCV33063A
http://onsemi.com
10
Calculation
Step−Up
Step−Down
Voltage−Inverting
ton/toff
Vout ) VF * Vin(min)
V
in(min) *
Vsat
Vout ) VF
V
in(min) *
Vsat * Vout
|Vout| ) VF
V
in *
Vsat
(ton + toff)
1
f
1
f
1
f
toff
ton ) toff
ton
t
off
) 1
ton ) toff
ton
t
off
) 1
ton ) toff
ton
t
off
) 1
ton
(ton + toff) − toff
(ton + toff) − toff
(ton + toff) − toff
CT
4.0 x 10−5 ton
4.0 x 10−5 ton
4.0 x 10−5 ton
Ipk(switch)
2I
out(max)
ton
t
off
) 1
2I
out(max)
2I
out(max)
ton
t
off
) 1
Rsc
0.3/Ipk(switch)
0.3/Ipk(switch)
0.3/Ipk(switch)
L(min)
(V
in(min) *
Vsat)
I
pk(switch)
t
on(max)
(V
in(min) *
Vsat * Vout)
I
pk(switch)
t
on(max)
(V
in(min) *
Vsat)
I
pk(switch)
t
on(max)
CO
9
Ioutton
V
ripple(pp)
I
pk(switch)
(ton ) toff)
8V
ripple(pp)
9
Ioutton
V
ripple(pp)
Vsat = Saturation voltage of the output switch.
VF = Forward voltage drop of the output rectifier.
The following power supply characteristics must be chosen:
Vin − Nominal input voltage.
Vout − Desired output voltage,
Iout − Desired output current.
fmin − Minimum desired output switching frequency at the selected values of Vin and IO.
Vripple(pp) − Desired peak−to−peak output ripple voltage. In practice, the calculated capacitor value will need to be increased due to its
equivalent series resistance and board layout. The ripple voltage should be kept to a low value since it will directly affect the
line and load regulation.
NOTE:
For further information refer to Application Note AN920A/D and AN954/D.
|Vout| + 1.25 1 )
R2
R1
Figure 15. Design Formula Table




Html Pages

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


Datasheet Download



Related Electronics Part Number

Part NumberComponents DescriptionHtml ViewManufacturer
PT78ST1001.5 Amp Positive Step-Down Integrated Switching Regulator 1 2 3 4 Texas Instruments
78ST1001.5 AMP POSITIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR 1 2 3 4 5 MoreTexas Instruments
1SMA5913BT3_071.5 Watt Plastic Surface Mount Zener Voltage Regulators 1 2 3 4 5 ON Semiconductor
MIC2172_05100kHz 1.25A Switching Regulators 1 2 3 4 5 MoreMicrel Semiconductor
CS5171_061.5 A 280 kHz/560 kHz Boost Regulators 1 2 3 4 5 MoreON Semiconductor
CS51411_071.5 A 260 kHz and 520 kHz Low Voltage Buck Regulators with External Bias or Synchronization Capability 1 2 3 4 5 MoreON Semiconductor
MC34163_053.4 A Step−Up/Down/Inverting Switching Regulators 1 2 3 4 5 MoreON Semiconductor
MC34166_053.0 A Step−Up/Down/Inverting Switching Regulators 1 2 3 4 5 MoreON Semiconductor
MC34167_055.0 A Step−Up/Down/Inverting Switching Regulators 1 2 3 4 5 MoreON Semiconductor
TL2575_071-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS 1 2 3 4 5 MoreTexas Instruments

Link URL

Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Bookmark   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com 2003 - 2017    


Mirror Sites
English : Alldatasheet.com  , 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