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LM2772SDX PDF预览

LM2772SDX

更新时间: 2024-11-13 05:42:03
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器开关
页数 文件大小 规格书
12页 1189K
描述
Low-Ripple Switched Capacitor Step-Down Regulator

LM2772SDX 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:3 X 3 MM, 0.80 MM HEIGHT, LLP-10Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.22模拟集成电路 - 其他类型:SWITCHED CAPACITOR REGULATOR
控制模式:VOLTAGE-MODE控制技术:PULSE FREQUENCY MODULATION
最大输入电压:5.5 V最小输入电压:2.7 V
标称输入电压:3.6 VJESD-30 代码:R-XDSO-N10
JESD-609代码:e0长度:3 mm
湿度敏感等级:1功能数量:1
端子数量:10最高工作温度:85 °C
最低工作温度:-30 °C最大输出电流:0.15 A
封装主体材料:UNSPECIFIED封装代码:HVSON
封装等效代码:SOLCC10,.12,20封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:0.8 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:1500 kHz
温度等级:OTHER端子面层:Tin/Lead (Sn/Pb)
端子形式:NO LEAD端子节距:0.5 mm
端子位置:DUAL处于峰值回流温度下的最长时间:40
宽度:3 mmBase Number Matches:1

LM2772SDX 数据手册

 浏览型号LM2772SDX的Datasheet PDF文件第2页浏览型号LM2772SDX的Datasheet PDF文件第3页浏览型号LM2772SDX的Datasheet PDF文件第4页浏览型号LM2772SDX的Datasheet PDF文件第5页浏览型号LM2772SDX的Datasheet PDF文件第6页浏览型号LM2772SDX的Datasheet PDF文件第7页 
December 2006  
LM2772  
Low-Ripple Switched Capacitor Step-Down Regulator  
General Description  
Features  
The LM2772 is a switched capacitor step-down regulator that  
produces a 1.2V output. It is capable of supplying loads up to  
150mA with 3% output voltage regulation over line, load, and  
temperature. The LM2772 operates with an input voltage from  
3.0V to 5.5V, accommodating 1-cell Li-Ion batteries and  
chargers.  
Low-Noise Fixed Frequency Operation  
1.2V Output Voltage  
3% Output Voltage Regulation  
Li-Ion (3.6V) to 1.2V with 80% Efficiency  
Very Low Output Ripple: 8mV @ 150mA  
Output Currents up to 150mA  
The LM2772 utilizes a highly efficient regulated multi-gain  
charge pump. Pre-regulated 1.1MHz fixed-frequency switch-  
ing results in very low ripple and noise on both the input and  
the output. When output currents are low, the part automati-  
cally switches to a low-ripple PFM regulation mode to main-  
tain high efficiency over the entire load range.  
2.7V to 5.5V Input Voltage Range  
Shutdown Disconnects Load from VIN  
1.1MHz Switching Frequency  
No Inductors…Small Solution Size  
Short Circuit and Thermal Protection  
The LM2772 is available in National’s 10-pad Leadless Lead-  
frame No-Pullback Package (LLP-10).  
LLP-10 Package (3mm × 3mm × 0.8mm)  
Applications  
DSP, Memory, and Microprocessor Power Supplies  
Mobile Phones and Pagers  
Portable Electronic Devices  
Typical Application Circuit  
LM2772 Efficiency vs.  
Low-Dropout Linear Regulator (LDO) Efficiency  
20216401  
20216413  
© 2007 National Semiconductor Corporation  
202164  
www.national.com  

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