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參數(shù)資料
| 型號(hào)： | LM2681MDA |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, 160 kHz SWITCHING FREQ-MAX, UUC |
| 封裝： | DIE |
| 文件頁(yè)數(shù)： | 11/11頁(yè) |
| 文件大小： | 234K |
| 代理商： | LM2681MDA |
National P/N LM2681 - Switched Capacitor Voltage Converter
Page 1 of 3
file://F:\export\projects\bitting2\imaging\BITTING\mail_pdf\recode\LM2681.html
1/23/01
Products > Analog - Regulators > Switched Capacitor Converters > LM2681
Generic P/N 2681
General Description
National
Semiconductor
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LM2681
Switched Capacitor Voltage Converter
Contents
l
General Description
l
Features
l
Applications
l
Datasheet
l
Package Availability, Models, Samples
& Pricing
Parametric Table
Multiple Output Capability
No
On/Off Pin
No
Error Flag
No
Input Voltage, min (Volt)
2.50
Input Voltage, max (Volt)
5.50
Output Current, max
20 mA
Adjustable Output
No
Switching Frequency (Hz)
160000
Adjustable Switching
No
Sync Pin
No
Efficiency
90 %
Inverting
No
Step-up
Yes
Step-Down
Yes
The LM2681 CMOS charge-pump voltage converter operates 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 reduce output resistance and
voltage ripple. With an operating current of only 550 [micro]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 package.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)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 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3.3V 輸入電壓:4.5 V ~ 24 V PWM 型:- 頻率 - 開(kāi)關(guān):- 電流 - 輸出:125mA 同步整流器:無(wú) 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 包裝:Digi-Reel® 供應(yīng)商設(shè)備封裝:SOT-6 其它名稱:MAX1836EUT33#TG16DKR |
| LM2682M/NOPB | 制造商:Texas Instruments 功能描述:DC/DC Charge Pump Converter IC |
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