Datasheet > LM828

LM828

更新时间： 2024-09-23 12:46:35

品牌	Logo	应用领域
德州仪器 - TI		转换器开关
页数	文件大小	规格书
15页	893K
描述
LM828 Switched Capacitor Voltage Converter

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LM828 数据手册

LM828

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SNOS035D –MARCH 2010–REVISED MAY 2013

LM828 Switched Capacitor Voltage Converter

Check for Samples: LM828

FEATURES

DESCRIPTION

The LM828 CMOS charge-pump voltage converter

inverts a positive voltage in the range of +1.8V to

+5.5V to the corresponding negative voltage of −1.8V

to −5.5V. The LM828 uses two low cost capacitors to

provide up to 25 mA of output current.

•

Inverts Input Supply Voltage

SOT-23 Package

20Ω Typical Output Impedance

97% Typical Conversion Efficiency at 5 mA

The LM828 operates at 12 kHz switching frequency

to reduce output resistance and voltage ripple. With

an operating current of only 40 µA (operating

efficiency greater than 96% with most loads), the

LM828 provides ideal performance for battery

powered systems. The device is in a tiny SOT-23

package.

APPLICATIONS

•

Cellular Phones

Pagers

PDAs

Operational Amplifier Power Supplies

Interface Power Supplies

Handheld Instruments

Basic Application Circuits

Voltage Inverter

+5V to −10V Converter

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.

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.

12 3 4 5 6 7...15

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