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參數(shù)資料
| 型號： | LM3211 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Step-up PWM DC/DC Converter Integrated with 4 Buffers |
| 中文描述： | 升壓PWM直流/直流轉(zhuǎn)換器集成有4緩沖器 |
| 文件頁數(shù)： | 1/21頁 |
| 文件大?。?/td> | 821K |
| 代理商： | LM3211 |
LM3211
Step-up PWM DC/DC Converter Integrated with 4 Buffers
General Description
The LM3211 is a compact bias solution for TFT displays. It
has a current mode PWM step-up DC/DC converter with a
1.4A, 0.17
internal switch. Capable of generating 8V at
300mA from a Lithium Ion battery, the LM3211 is ideal for
generating bias voltages for large screen LCD panels. The
LM3211 can be operated at switching frequencies of 600kHz
or 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. The
LM3211 uses a patented internal circuitry to limit startup
inrush current of the boost switching regulator without the
use of an external softstart capacitor. An external softstart
pin enables the user to tailor the softstart to a specific
application. The LM3211 contains 4 Gamma buffers capable
of supplying 35mAsource and sink. The TSSOP-20 package
ensures a low profile overall solution.
Features
n
1.4A, 0.17
, internal power switch
n
V
IN
operating range: 2.2V to 7.5V
n
600kHz/1.25MHz selectable frequency step-up DC/DC
converter
n
20 pin TSSOP package
n
Inrush current limiting circuitry
n
External softstart override
n
4 Gamma buffers
Applications
n
LCD Bias Supplies
n
Handheld Devices
n
Portable Applications
n
Cellular Phones/Digital Cameras
Typical Application Circuit
20062231
February 2004
L
2004 National Semiconductor Corporation
DS200622
www.national.com
相關(guān)PDF資料 |
PDF描述 |
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| LM3211MT-ADJ | Step-up PWM DC/DC Converter Integrated with 4 Buffers |
| LM3211MTX-ADJ | Step-up PWM DC/DC Converter Integrated with 4 Buffers |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3211MT-ADJ | 制造商:Texas Instruments 功能描述:CONVERTER DC-DC BOOST SMD 3211 |
| LM3211MT-ADJ/NOPB | 功能描述:IC REG BOOST 8V 1.4A 20-TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3.3V 輸入電壓:4.5 V ~ 24 V PWM 型:- 頻率 - 開關(guān):- 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(yīng)商設(shè)備封裝:SOT-6 其它名稱:MAX1836EUT33#TG16DKR |
| LM3211MTX-ADJ | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Step-up PWM DC/DC Converter Integrated with 4 Buffers |
| LM3211MTX-ADJ/NOPB | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(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 |
| LM3212 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LM3212 PRODUCT BRIEF Step-Down DC-DC Converter with Analog Bypass Mode for RF Power Amplifiers |
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