- 您现在的位置：买卖IC网 > PDF目录98001 > LM5000-3MTCX/NOPB (NATIONAL SEMICONDUCTOR CORP) 2.7 A SWITCHING REGULATOR, 840 kHz SWITCHING FREQ-MAX, PDSO16 PDF资料下载
参数资料
| 型号： | LM5000-3MTCX/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 2.7 A SWITCHING REGULATOR, 840 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | TSSOP-16 |
| 文件页数： | 1/18页 |
| 文件大小： | 388K |
| 代理商： | LM5000-3MTCX/NOPB |
February 2007
LM5000
High Voltage Switch Mode Regulator
General Description
The LM5000 is a monolithic integrated circuit specifically de-
signed and optimized for flyback, boost or forward power
converter applications. The internal power switch is rated for
a maximum of 80V, with a current limit set to 2A. Protecting
the power switch are current limit and thermal shutdown cir-
cuits. The current mode control scheme provides excellent
rejection of line transients and cycle-by-cycle current limiting.
An external compensation pin and the built-in slope compen-
sation allow the user to optimize the frequency compensation.
Other distinctive features include softstart to reduce stresses
during start-up and an external shutdown pin for remote ON/
OFF control. There are two operating frequency ranges avail-
able. The LM5000-3 is pin selectable for either 300kHz (FS
Grounded) or 700kHz (FS Open). The LM5000-6 is pin se-
lectable for either 600kHz (FS Grounded) or 1.3MHz (FS
Open). The device is available in a low profile 16-lead TSSOP
package or a thermally enhanced 16-lead LLP package.
Features
■ 80V internal switch
■ Operating input voltage range of 3.1V to 40V
■ Pin selectable operating frequency
300kHz/700kHz (-3)
600kHz/1.3MHz (-6)
■ Adjustable output voltage
■ External compensation
■ Input undervoltage lockout
■ Softstart
■ Current limit
■ Over temperature protection
■ External shutdown
■ Small 16-Lead TSSOP or 16-Lead LLP package
Applications
■ Flyback Regulator
■ Forward Regulator
■ Boost Regulator
■ DSL Modems
■ Distributed Power Converters
Typical Application Circuit
20031901
LM5000 Flyback Converter
2007 National Semiconductor Corporation
200319
www.national.com
LM5000
High
Voltage
Switch
Mode
Regulator
相关PDF资料 |
PDF描述 |
|---|---|
| LM5010AHMH | 1.5 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO14 |
| LM5010AMHE | 1.5 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO14 |
| LM5021NA-2/NOPB | 0.7 A SWITCHING CONTROLLER, 560 kHz SWITCHING FREQ-MAX, PDIP8 |
| LM5041BSDX | SWITCHING CONTROLLER, 685 kHz SWITCHING FREQ-MAX, DSO16 |
| LM555H-MLS/NOPB | PULSE; RECTANGULAR, TIMER, MBCY8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LM5000-3MYC | 制造商:Texas Instruments 功能描述: |
| LM5000EP | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Enhanced Plastic High Voltage Switch Mode Regulator |
| LM5000EVAL | 功能描述:电源管理IC开发工具 LM5000 EVAL UNIT RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| LM5000EVAL/NOPB | 功能描述:EVALUATION BOARD FOR LM5000 RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| LM5000SD-3 | 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 |
发布紧急采购，3分钟左右您将得到回复。