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參數資料
| 型號： | NCP1422MNR2 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩壓器 |
| 英文描述： | 800 mA Sync−Rect PFM Step−Up DC−DC Converter with True−Cutoff and Ring−Killer |
| 中文描述： | 1.5 A SWITCHING REGULATOR, 1200 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | 3 X 3 MM, 0.50 MM PITCH, PLASTIC, DFN-10 |
| 文件頁數： | 12/14頁 |
| 文件大小： | 142K |
| 代理商： | NCP1422MNR2 |
NCP1422
http://onsemi.com
12
From the previous calculations, you need at least 18.75
F in order to achieve the specified ripple level at the
conditions stated. Practically, a capacitor that is one level
larger is used to accommodate factors not taken into
account in the calculations. Therefore, a capacitor value of
22 F is selected. The NCP1422 is internally compensated
for most applications, but in case additional compensation
is required, the capacitor C4 can be used as external
compensation adjustment to improve system dynamics.
In order to provide an easy way for customers to select
external parts for NCP1422 in different input voltage and
output current conditions, values of inductance and
capacitance are suggested in Figures 24, 25 and 26.
0
2
4
6
8
10
12
1.8
2.0
2.2
2.4
2.6
2.8
3.0
Figure 24. Suggested Inductance of V
OUT
= 3.3 V
Figure 25. Suggested Inductance of V
OUT
= 5.0 V
Figure 26. Suggested Capacitance for Output Capacitor
INPUT VOLTAGE (V)
I
I
OUT
= 700 mA
0
2.2
3
6
9
12
2.5
2.8
3.1
3.4
3.7
4.0
INPUT VOLTAGE (V)
I
OUTPUT CURRENT (mA)
C
40
35
30
25
20
15
10
5
0
100
200
300
400
500
600
700
800
I
OUT
= 700 mA
25
33
50
100
C
V
OUTRIPPLE
= 45 mA
Table 1. Suggestions for Passive Components
Output Current
Inductors
Capacitors
800 mA
Sumida CR43, CR54,CDRH6D28 series
Panasonic ECJ series
Kemet TL494 series
250 mA
Sumida CR32 series
Panasonic ECJ series
Kemet TL494 series
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| NCP1422MNR2G | 功能描述:直流/直流開關轉換器 800mA PFM Boost w/Ring Killer RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| NCP1423DMR2 | 功能描述:直流/直流開關轉換器 800mA PFM Boost RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| NCP1423DMR2G | 功能描述:直流/直流開關轉換器 800mA PFM Boost w/Ring Killer RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| NCP1423EVB | 功能描述:電源管理IC開發工具 ANA NCP1423 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| NCP1442FR4 | 功能描述:IC REG MULTI CONFIG POWERFLEX7 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:3.3V 輸入電壓:4.5 V ~ 24 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:125mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 包裝:Digi-Reel® 供應商設備封裝:SOT-6 其它名稱:MAX1836EUT33#TG16DKR |
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