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参数资料
| 型号： | LM2681MDA |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 160 kHz SWITCHING FREQ-MAX, UUC |
| 封装： | DIE |
| 文件页数： | 1/11页 |
| 文件大小： | 234K |
| 代理商： | LM2681MDA |
LM2681
Switched Capacitor Voltage Converter
General Description
The LM2681 CMOS charge-pump voltage converter oper-
ates as a voltage doubler for an input voltage in the range of
+2.5V to +5.5V. Two low cost capacitors and a diode
(needed during start-up) is used in this circuit to provide up
to 20 mA of output current. The LM2681 can also work as a
voltage divider to split a voltage in the range of +1.8V to
+11V in half.
The LM2681 operates at 160 kHz oscillator frequency to re-
duce output resistance and voltage ripple. With an operating
current of only 550 A (operating efficiency greater than 90%
with most loads) the LM2681 provides ideal performance for
battery powered systems. The device is in SOT-23-6 pack-
age.
Features
n Doubles or Splits Input Supply Voltage
n SOT23-6 Package
n 15
Typical Output Impedance
n 90% Typical Conversion Efficiency at 20 mA
Applications
n Cellular Phones
n Pagers
n PDAs
n Operational Amplifier Power Suppliers
n Interface Power Suppliers
n Handheld Instruments
Basic Application Circuits
Voltage Doubler
DS100965-1
Splitting V
in in Half
DS100965-2
March 1999
LM2681
Switched
Capacitor
V
oltage
Converter
1999 National Semiconductor Corporation
DS100965
www.national.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2682C E WAF | 制造商:Texas Instruments 功能描述: |
| LM2682M | 制造商:Maxim Integrated Products 功能描述:VOLT CONVERTER SMD 2682 SOIC8 |
| LM2682M | 制造商:Maxim Integrated Products 功能描述:VOLT CONVERTER SMD 2682 SOIC8 |
| LM2682M/NOPB | 功能描述:IC REG SWITCHD CAP DBL INV 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:3.3V 输入电压:4.5 V ~ 24 V PWM 型:- 频率 - 开关:- 电流 - 输出:125mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 包装:Digi-Reel® 供应商设备封装:SOT-6 其它名称:MAX1836EUT33#TG16DKR |
| LM2682M/NOPB | 制造商:Texas Instruments 功能描述:DC/DC Charge Pump Converter IC |
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