參數(shù)資料
型號(hào)： NCV33163DW
廠商： ON SEMICONDUCTOR
元件分類： 穩(wěn)壓器
英文描述： RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
中文描述： 2.5 A SWITCHING REGULATOR, 55 kHz SWITCHING FREQ-MAX, PDSO16
封裝： SO-16
文件頁(yè)數(shù)： 13/16頁(yè)
文件大?。?/td> 203K
代理商： NCV33163DW
NCV33163
http://onsemi.com
13
Calculation
Step-Down
Step-Up
Voltage-Inverting
ton
(Notetoff
Vout
VF
Vin
Vsat
Vout
Vout
VF– Vin
Vin– Vsat
|Vout|
Vin
VF
Vsat
ton
ton
toff
ton
toff
1
ton
toff
ton
toff
1
ton
toff
ton
toff
1
CT
32.143 · 10–6
32.143 · 10–6
32.143 · 10–6
IL(avg)
Iout
Iout
ton
toff
1
Iout
ton
toff
1
Ipk (Switch)
IL(avg)
IL
2
IL(avg)
IL
2
IL(avg)
IL
2
RSC
0.25
Ipk (Switch)
0.25
Ipk (Switch)
0.25
Ipk (Switch)
L
Vin
Vsat
Vout
IL
ton
Vin
Vsat
IL
ton
Vin
Vsat
IL
ton
V
ripple(pp)
IL
1
8 CO
2
(ESR)2
tonIout
CO
tonIout
CO
Vout
Vref
R2
R1
1
Vref
R2
R1
1
Vref
R2
R1
1
V
in
-
V
out
-
I
out
-
I
L
-
-
V
ripple(pp)
-
Nominal operating input voltage.
Desired output voltage.
Desired output current.
Desired peak-to-peak inductor ripple current. For maximum output current it is suggested that I
L
be chosen to be less
than 10% of the average inductor current I
L(avg)
. This will help prevent I
pk (Switch)
from reaching the current limit
threshold set by R
SC
. If the design goal is to use a minimum inductance value, let I
L
= 2(I
L(avg)
). This will
proportionally reduce converter output current capability.
Maximum output switch frequency.
Desired peak-to-peak output ripple voltage. For best performance the ripple voltage should be kept to a low value
since it will directly affect line and load regulation. Capacitor C
O
should be a low equivalent series resistance (ESR)
electrolytic designed for switching regulator applications.
The following Converter Characteristics must be chosen:
NOTES:
1. V
sat
- Saturation voltage of the output switch, refer to Figures 8 and 9.
NOTES:
2. V
F
- Output rectifier forward voltage drop. Typical value for 1N5822 Schottky barrier rectifier is 0.5 V.
NOTES:
3. The calculated t
on
/t
off
must not exceed the minimum guaranteed oscillator charge to discharge ratio of 8, at the minimum
NOTES:
3.
operating input voltage.
Figure 27. Design Equations
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
NCV33163DWR2 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 60V 3A Buck/Boost RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)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
NCV33163DWR2G 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 60V 3A Buck/Boost RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)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
NCV33163P 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 60V 3A Buck/Boost RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)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
NCV33163PG 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 60V 3A Buck/Boost RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
NCV33164 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Micropower Undervoltage Sensing Circuits
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