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LM22675MRE-ADJ PDF预览

LM22675MRE-ADJ

更新时间: 2024-10-28 05:41:59
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器
页数 文件大小 规格书
16页 555K
描述
1A SIMPLE SWITCHER®, Step-Down Voltage Regulator with Precision Enable

LM22675MRE-ADJ 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:HLSOP, SOP8,.25Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.11其他特性:ALSO HAS ADJUSTABLE OUTPUTS AS LOW AS 1.285V
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:VOLTAGE-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:42 V
最小输入电压:4.5 V标称输入电压:12 V
JESD-30 代码:R-PDSO-G8JESD-609代码:e0
长度:4.9 mm湿度敏感等级:3
功能数量:1端子数量:8
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:1.8 A封装主体材料:PLASTIC/EPOXY
封装代码:HLSOP封装等效代码:SOP8,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.68 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:BUCK
最大切换频率:600 kHz温度等级:AUTOMOTIVE
端子面层:TIN LEAD端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40宽度:3.9 mm
Base Number Matches:1

LM22675MRE-ADJ 数据手册

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December 18, 2009  
LM22675  
1A SIMPLE SWITCHER®, Step-Down Voltage Regulator  
with Precision Enable  
General Description  
Features  
The LM22675 series of regulators are monolithic integrated  
circuits which provide all of the active functions for a step-  
down (buck) switching regulator capable of driving up to 1A  
loads with excellent line and load regulation characteristics.  
High efficiency (>90%) is obtained through the use of a low  
ON-resistance N-channel MOSFET. The series consists of a  
fixed 5V output and an adjustable version.  
Wide input voltage range: 4.5V to 42V  
Internally compensated voltage mode control  
Stable with low ESR ceramic capacitors  
200 mN-channel MOSFET  
Output voltage options:  
-ADJ (outputs as low as 1.285V)  
-5.0 (output fixed to 5V)  
The SIMPLE SWITCHER® concept provides for an easy to  
use complete design using a minimum number of external  
components and National’s WEBENCH® design tool.  
National’s WEBENCH® tool includes features such as exter-  
nal component calculation, electrical simulation, thermal sim-  
ulation, and Build-It boards for easy design-in. The switching  
clock frequency is provided by an internal fixed frequency os-  
cillator which operates at 500 kHz. The LM22675 series also  
has built in thermal shutdown, current limiting and an enable  
control input that can power down the regulator to a low 25  
µA quiescent current standby condition.  
±1.5% feedback reference accuracy  
Switching frequency of 500 kHz  
-40°C to 125°C operating junction temperature range  
Precision enable pin  
Integrated boot diode  
Integrated soft-start  
Fully WEBENCH® enabled  
Step-down and inverting buck-boost applications  
Package  
PSOP-8 (Exposed Pad)  
Applications  
Industrial Control  
Telecom and Datacom Systems  
Embedded Systems  
Automotive Telematics and Body Electronics  
Conversions from Standard 24V, 12V and 5V Input Rails  
Simplified Application Schematic  
30077001  
© 2009 National Semiconductor Corporation  
300770  
www.national.com  

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