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參數(shù)資料
| 型號(hào)： | LM3224MMX-ADJ |
| 廠(chǎng)商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類(lèi)： | 穩(wěn)壓器 |
| 英文描述： | 615kHz/1.25MHz Step-up PWM DC/DC Converter |
| 中文描述： | 2.8 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | PLASTIC, MSOP-8 |
| 文件頁(yè)數(shù)： | 1/18頁(yè) |
| 文件大?。?/td> | 920K |
| 代理商： | LM3224MMX-ADJ |
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LM3224
615kHz/1.25MHz Step-up PWM DC/DC Converter
General Description
The LM3224 is a step-up DC/DC converter with a 0.15
(typ.), 2.45A (typ.) internal switch and pin selectable operat-
ing frequency. With the ability to convert 3.3V to multiple
outputs of 8V, -8V, and 23V, the LM3224 is an ideal part for
biasing TFT displays. With the high current switch it is also
ideal for driving high current white LEDs for flash applica-
tions. The LM3224 can be operated at switching frequencies
of 615kHz and 1.25MHz allowing for easy filtering and low
noise. An external compensation pin gives the user flexibility
in setting frequency compensation, which makes possible
the use of small, low ESR ceramic capacitors at the output.
An external soft-start pin allows the user to control the
amount of inrush current during start up. The LM3224 is
available in a low profile 8-lead MSOP package.
Features
n
Operating voltage range of 2.7V to 7V
n
615kHz/1.25MHz pin selectable frequency operation
n
Over temperature protection
n
Optional soft-start function
n
8-Lead MSOP package
Applications
n
TFT Bias Supplies
n
Handheld Devices
n
Portable Applications
n
GSM/CDMA Phones
n
Digital Cameras
n
White LED Flash/Torch Applications
Typical Application Circuit
20097631
December 2004
L
2004 National Semiconductor Corporation
DS200976
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3224MMX-ADJ/NOPB | 功能描述:DC/DC 開(kāi)關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| LM322H | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Precision Timers |
| LM322N | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Precision Timers |
| LM322N/B+ | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:Analog Timer Circuit |
| LM323 | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Three-terminal 3 A adjustable voltage regulators |
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