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參數(shù)資料
| 型號： | NCV33063A |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 500kHz and 1MHz High Efficiency 1.5A Switching Regulators; Package: SO; No of Pins: 8; Temperature Range: -40?°C to 85?°C |
| 中文描述： | 射頻放大器 |
| 文件頁數(shù)： | 10/13頁 |
| 文件大?。?/td> | 159K |
| 代理商： | NCV33063A |
MC34063A, MC33063A, NCV33063A
http://onsemi.com
10
Calculation
StepUp
StepDown
VoltageInverting
t
on
/t
off
Vout
VF
Vin(min)
Vsat
Vin(min)
Vout
VF
Vin(min)
Vsat
Vout
|Vout|
Vin
VF
Vsat
(t
on
+ t
off
)
1
f
1
f
1
f
t
off
ton
ton
toff
(t
on
+ t
off
) t
off
4.0 x 10
5
t
on
toff
1
ton
ton
toff
toff
1
ton
ton
toff
(t
on
+ t
off
) t
off
4.0 x 10
5
t
on
toff
1
t
on
(t
on
+ t
off
) t
off
4.0 x 10
5
t
on
C
T
I
pk(switch)
2Iout(max)
ton
toff
1
2Iout(max)
2Iout(max)
ton
toff
1
R
sc
0.3/I
pk(switch)
0.3/I
pk(switch)
0.3/I
pk(switch)
L
(min)
(Vin(min)
Ipk(switch)
Vsat)
ton(max)
(Vin(min)
Vsat
Vout)
Ipk(switch)
ton(max)
(Vin(min)
Ipk(switch)
Vsat)
ton(max)
C
O
9
Ioutton
Vripple(pp)
Ipk(switch)(ton
8Vripple(pp)
toff)
9
Ioutton
Vripple(pp)
V
sat
= Saturation voltage of the output switch.
V
F
= Forward voltage drop of the output rectifier.
The following power supply characteristics must be chosen:
V
in
Nominal input voltage.
V
out
Desired output voltage,
I
out
Desired output current.
f
min
Minimum desired output switching frequency at the selected values of V
in
and I
O
.
V
ripple(pp)
Desired peaktopeak 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.
|V
out
|
1.25 1
R2
R1
Figure 15. Design Formula Table
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| NCV33064P-5RA | UNDERVOLTAGE SENSING CIRCUIT |
| NCV33064P-5RP | UNDERVOLTAGE SENSING CIRCUIT |
| NCV33064D-5R2 | UNDERVOLTAGE SENSING CIRCUIT |
| NCV33064D-5R2G | UNDERVOLTAGE SENSING CIRCUIT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCV33063AVDR2 | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 40V 1.5A Buck/Boost RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| NCV33063AVDR2G | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 40V 1.5A Buck/Boost RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| NCV33063AVDR2G/H | 制造商:ON Semiconductor 功能描述: |
| NCV33064D-5R2 | 功能描述:監(jiān)控電路 4.59V UnderVoltage RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| NCV33064D-5R2G | 功能描述:監(jiān)控電路 4.59V UnderVoltage Sensing Circuit RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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