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參數(shù)資料
| 型號： | LM2663M |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Switched Capacitor Voltage Converter |
| 中文描述： | SWITCHED CAPACITOR CONVERTER, 150 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 282K |
| 代理商： | LM2663M |
LM2662/LM2663
Switched Capacitor Voltage Converter
General Description
The LM2662/LM2663 CMOS charge-pump voltage con-
verter inverts a positive voltage in the range of 1.5V to 5.5V
to the corresponding negative voltage. The LM2662/LM2663
uses two low cost capacitors to provide 200 mA of output
current without the cost, size, and EMI related to inductor
based converters. With an operating current of only 300 μA
and operating efficiency greater than 90% at most loads, the
LM2662/LM2663 provides ideal performance for battery
powered systems. The LM2662/LM2663 may also be used
as a positive voltage doubler.
The oscillator frequency can be lowered by adding an exter-
nal capacitor to the OSC pin.Also, the OSC pin may be used
to drive the LM2662/LM2663 with an external clock. For
LM2662, a frequency control (FC) pin selects the oscillator
frequency of 20 kHz or 150 kHz. For LM2663, an external
shutdown (SD) pin replaces the FC pin. The SD pin can be
used to disable the device and reduce the quiescent current
to 10 μA. The oscillator frequency for LM2663 is 150 kHz.
Features
n
Inverts or doubles input supply voltage
n
Narrow SO-8 Package
n
3.5
typical output resistance
n
86% typical conversion efficiency at 200 mA
n
(LM2662) selectable oscillator
frequency: 20 kHz/150 kHz
n
(LM2663) low current shutdown mode
Applications
n
Laptop computers
n
Cellular phones
n
Medical instruments
n
Operational amplifier power supplies
n
Interface power supplies
n
Handheld instruments
Basic Application Circuits
Voltage Inverter
DS100003-1
Positive Voltage Doubler
DS100003-2
Splitting V
IN
in Half
DS100003-3
January 1999
L
1999 National Semiconductor Corporation
DS100003
www.national.com
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| LM2670 | SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync |
| LM2670T-3.3 | SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync |
| LM2670T-5.0 | SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync |
| LM2670T-ADJ | SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync |
| LM2670S-5.0 | SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM2663M/NOPB | 功能描述:電荷泵 SWITCHED CAPACITOR VLTG CONVERTER RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| LM2663M/NOPB | 制造商:Texas Instruments 功能描述:DC/DC Charge Pump Converter (DC-DC) IC |
| LM2663MX | 功能描述:電荷泵 RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| LM2663MX/NOPB | 功能描述:電荷泵 RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| LM2664 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Switched Capacitor Voltage Converter |
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