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参数资料
| 型号： | LM5010AHMHX |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 1.5 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封装： | TSSOP-14 |
| 文件页数： | 1/18页 |
| 文件大小： | 399K |
| 代理商： | LM5010AHMHX |
January 25, 2008
LM5010A
High Voltage 1A Step Down Switching Regulator
General Description
The LM5010A Step Down Switching Regulator is an en-
hanced version of the LM5010 with the input operating range
extended to 6V minimum. The LM5010A features all the func-
tions needed to implement a low cost, efficient, buck regulator
capable of supplying in excess of 1A load current. This high
voltage regulator integrates an N-Channel Buck Switch, and
is available in thermally enhanced LLP-10 and TSSOP-14EP
packages. The constant on-time regulation scheme requires
no loop compensation resulting in fast load transient re-
sponse and simplified circuit implementation. The operating
frequency remains constant with line and load variations due
to the inverse relationship between the input voltage and the
on-time. The valley current limit detection is set at 1.25A. Ad-
ditional features include: VCC under-voltage lock-out, thermal
shutdown, gate drive under-voltage lock-out, and maximum
duty cycle limiter.
Features
■ Wide 6V to 75V Input Voltage Range
■ Valley Current Limiting At 1.25A
■ Programmable Switching Frequency Up To 1 MHz
■ Integrated 80V N-Channel Buck Switch
■ Integrated High Voltage Bias Regulator
■ No Loop Compensation Required
■ Ultra-Fast Transient Response
■ Nearly Constant Operating Frequency With Line and Load
Variations
■ Adjustable Output Voltage
■ 2.5V, ±2% Feedback Reference
■ Programmable Soft-Start
■ Thermal shutdown
Typical Applications
■ Non-Isolated Telecommunications Regulator
■ Secondary Side Post Regulator
■ Power Supply for Automotive Electronics
Package
■ LLP-10 (4 mm x 4 mm)
■ TSSOP-14EP
■ Both Packages Have Exposed Thermal Pad For Improved
Heat Dissipation
Basic Step Down Regulator
20153843
2008 National Semiconductor Corporation
201538
www.national.com
LM5010A
High
Voltage
1A
Step
Down
Switching
Regulator
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM5010AMH | 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 |
| LM5010AMH/NOPB | 功能描述:直流/直流开关转换器 Hi Volt 1A Step Down Switching Reg 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 |
| LM5010AMHE | 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Down 6V to 75V 14-Pin TSSOP EP T/R |
| LM5010AMHE/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 |
| LM5010AMHX | 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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