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參數(shù)資料
| 型號： | LM22670QMR-5.0 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 5.5 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | PLASTIC, SOP-8 |
| 文件頁數(shù)： | 15/20頁 |
| 文件大?。?/td> | 515K |
| 代理商： | LM22670QMR-5.0 |
Pin Descriptions
Pin Numbers
PSOP-8
Package
Pin Numbers
TO-263 THIN
Package
Name
Description
Application Information
1
3
BOOT
Bootstrap input
Provides the gate voltage for the high side NFET.
2
-
NC
Not Connected
Pin is not electrically connected inside the chip. Pin
does function as thermal conductor.
3
5
RT/
SYNC
Oscillator frequency adjust pin or
frequency synchronization
A resistor connected from this pin to GND adjusts the
oscillator frequency. This pin can also accept an input
for synchronization from an external clock. Pin can be
left floating and internal setting will be default to 500
kHz.
4
6
FB
Feedback pin
Inverting input to the internal voltage error amplifier.
5
7
EN
Precision enable pin
When pulled low regulator turns off.
6
4
GND
System ground
Provide good capacitive decoupling between VIN and
this pin.
7
2
VIN
Source input voltage
Input to the regulator. Operates from 4.5V to 42V.
8
1
SW
Switch pin
Attaches to the switch node.
www.national.com
4
LM22670/LM22670Q
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM22670QMR-ADJ | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:3A SIMPLE SWITCHER??, Step-Down Voltage Regulator with Synchronization or Adjustable Switching Frequency |
| LM22670QMR-ADJ/NOPB | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 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 |
| LM22670QMRE-5.0/NOPB | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 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 |
| LM22670QMRE-ADJ/NOPB | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 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 |
| LM22670QMRX-5.0/NOPB | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 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 |
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