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LM2787BPX

更新时间： 2024-09-25 20:07:55
品牌 Logo 应用领域
德州仪器 - TI 开关
页数 文件大小 规格书
9页 311K
描述
0.01A SWITCHED CAPACITOR REGULATOR, 450kHz SWITCHING FREQ-MAX, PBGA8, SMD-8

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LM2787BPX 技术参数

生命周期：Obsolete零件包装代码：BGA
包装说明：,针数：8
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.2
模拟集成电路 - 其他类型：SWITCHED CAPACITOR REGULATORBase Number Matches：1

LM2787BPX 数据手册

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LM2787  
www.ti.com  
SNVS080F –JULY 2001–REVISED MAY 2013  
LM2787 Low Noise Regulated Switched Capacitor Voltage Inverter in DSBGA  
Check for Samples: LM2787  
1
FEATURES  
DESCRIPTION  
The LM2787 CMOS Negative Regulated Switched  
Capacitor Voltage Inverter delivers a very low noise  
adjustable output for an input voltage in the range of  
+2.7V to +5.5V. Four low cost capacitors are used in  
this circuit to provide up to 10mA of output current.  
The regulated output for the LM2787 is adjustable  
between −1.5V and −5.2V. The LM2787 operates at  
260 kHz (typical) switching frequency to reduce  
output resistance and voltage ripple. With an  
operating current of only 400 µA (charge pump power  
efficiency greater than 90% with most loads) and 0.05  
µA typical shutdown current, the LM2787 provides  
ideal performance for cellular phone power amplifier  
bias and other low current, low noise negative voltage  
needs. The device comes in small 8-Bump DSBGA  
and thin DSBGA packages.  
2
•
Inverts and Regulates the Input Supply  
Voltage  
•
•
Small 8-Bump DSBGA and Thin DSBGA  
Packages  
91% Typical Charge Pump Power Efficiency at  
10mA  
•
•
Low Output Ripple  
Shutdown Lowers Quiescent Current to 0.05  
µA (Typical)  
APPLICATIONS  
•
•
•
•
•
Wireless Communication Systems  
Cellular Phone Power Amplifier Biasing  
Interface Power Supplies  
Handheld Instrumentation  
Laptop Computers and PDA's  
Typical Application Circuit and Connection Diagram  
8-Bump DSBGA (Top View)  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2001–2013, Texas Instruments Incorporated  
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LM2787BPX 替代型号

型号 品牌 替代类型 描述 数据表
LM2787TP/NOPB TI

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 0.01A SWITCHED CAPACITOR REGULATOR, 450kHz SWITCHING FREQ-MAX, PBGA8, SMD-8

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