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参数资料
| 型号： | LM3211MT-ADJ/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封装： | TSSOP-20 |
| 文件页数： | 1/21页 |
| 文件大小： | 821K |
| 代理商： | LM3211MT-ADJ/NOPB |
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 35mA source 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
LM321
1
Step-up
PWM
DC/DC
Converter
Integrated
with
4
Buffers
2004 National Semiconductor Corporation
DS200622
www.national.com
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| LM3354MM-3.7/NOPB | SWITCHED CAPACITOR REGULATOR, 1400 kHz SWITCHING FREQ-MAX, PDSO10 |
| LM3354MMX-3.3/NOPB | SWITCHED CAPACITOR REGULATOR, 1400 kHz SWITCHING FREQ-MAX, PDSO10 |
| LM3354MM-5.0/NOPB | SWITCHED CAPACITOR REGULATOR, 1400 kHz SWITCHING FREQ-MAX, PDSO10 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM3211MTX-ADJ | 制造商:NSC 制造商全称: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 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| LM3212 | 制造商:TI 制造商全称:Texas Instruments 功能描述:LM3212 PRODUCT BRIEF Step-Down DC-DC Converter with Analog Bypass Mode for RF Power Amplifiers |
| LM3212TL/NOPB | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| LM3212TLX/NOPB | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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