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LM8801TME-1.82 PDF预览

LM8801TME-1.82

更新时间: 2024-09-15 05:42:23
品牌 Logo 应用领域
美国国家半导体 - NSC 转换器开关
页数 文件大小 规格书
16页 959K
描述
High Precision 6MHz, 600 mA Synchronous Step-Down DC-DC Converter for Mobile Applications

LM8801TME-1.82 技术参数

生命周期:Transferred包装说明:VFBGA,
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.6
其他特性:PFM CONTROL TECHNIQUE ALSO POSSIBLE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:5.5 V最小输入电压:2.3 V
标称输入电压:3.6 VJESD-30 代码:R-XBGA-B6
长度:1.265 mm功能数量:1
端子数量:6最高工作温度:85 °C
最低工作温度:-30 °C最大输出电流:1.3 A
标称输出电压:1.82 V封装主体材料:UNSPECIFIED
封装代码:VFBGA封装形状:RECTANGULAR
封装形式:GRID ARRAY, VERY THIN PROFILE, FINE PITCH认证状态:Not Qualified
座面最大高度:0.675 mm表面贴装:YES
切换器配置:BUCK最大切换频率:6400 kHz
温度等级:OTHER端子形式:BALL
端子节距:0.4 mm端子位置:BOTTOM
宽度:1.065 mmBase Number Matches:1

LM8801TME-1.82 数据手册

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April 20, 2009  
LM8801  
High Precision 6MHz, 600 mA Synchronous Step-Down  
DC-DC Converter for Mobile Applications  
General Description  
Features  
The LM8801 step-down DC-DC converter is optimized for  
powering ultra-low voltage circuits from a single Li-Ion cell and  
input voltage rails from 2.3V to 5.5V. It provides up to 600 mA  
load current over the entire input voltage range.  
Over 90% efficiency at 6 MHz Operation  
600 mA maximum load capability  
6 MHz PWM fixed switching frequency (typ.)  
27 µA (typ.) quiescent current in PFM mode  
The LM8801 has a mode-control pin that allows the user to  
select continuous PWM operation over the complete load  
range or an auto PFM-PWM mode that changes modes au-  
tomatically depending on the load. During PWM mode, the  
device operates at a fixed-frequency of 6 MHz (typ.). In Auto  
PFM-PWM mode, hysteretic PFM extends the battery life  
through reduction of the quiescent current during light loads  
and system standby.  
Wide Input Voltage Range: 2.3V to 5.5V  
±1.5% DC output voltage precision over temperature  
Best-in-class load transient response  
Low output ripple in PFM mode  
Automatic PFM/PWM mode switching  
Current overload and thermal shutdown protection  
Internal soft-start  
The LM8801 is available in a 6-bump micro SMD package.  
Only three compact external surface-mount components, an  
inductor and two capacitors, are required.  
Micro SMD 6–bump package  
(1.065 x 1.265 , 0.6 mm height)  
Total solution size < 7mm2 (works with 0402 capacitors)  
UVLO  
Applications  
Mobile Phones  
MP3 players  
Wireless LAN  
PDAs, Pocket PCs  
Portable Hard Disk Drives  
Typical Application Circuit  
Efficiency vs. Output Current  
(Auto Mode, VOUT = 1.82V)  
30082230  
30082201  
© 2009 National Semiconductor Corporation  
300822  
www.national.com  

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