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參數(shù)資料
| 型號(hào)： | AIC1660CS |
| 廠商： | Analog Integrations Corporation |
| 英文描述： | CMOS Hex Non-Inverting Buffer/Converter 16-SOIC -55 to 125 |
| 中文描述： | 開(kāi)關(guān)電容電壓轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大小： | 102K |
| 代理商： | AIC1660CS |
AIC1660
Switched-Capacitor Voltage Converter
Analog Integrations Corporation
4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
www.analog.com.tw
DS-1660T-P4 Oct. 4, 01
TEL: 886-3-5772500
FAX: 886-3-5772510
1
n
FEATURES
l
Lowest Output Impedance (Typical 35
at
V
IN
=5V).
l
Improved Direct Replacement for 7660.
l
1.5V to 6V Operation.
l
No External Diode Required.
l
Simple Conversion of +5V to -5V.
l
Low Quiescent Current (Typical 36
μ
A at V
IN
=5V).
l
High Power Efficiency (Typical 98%)
l
Boost Pin for Higher Switching Frequency.
l
Improved SCR Latchup Protection.
n
APPLICATIONS
l
RS-232 Power Supplies.
l
Handheld Instruments.
l
Data Acquisition Systems.
l
Supply Splitter, V
OUT
=
±
V
IN
/2.
l
Operational Amplifier Supplies.
l
Panel Meter.
n
TYPICAL APPLICATION CIRCUIT
10
μ
F
C1
V
OUT
=-V
IN
10
μ
F
C2
V
IN
(1.5V to 6V)
Required for
V
IN
≤
3V
1
8
AIC1660
7
6
5
4
3
2
+
+
Negative Voltage Converter
n
DESCRIPTION
The AIC1660 is a monolithic CMOS switched
capacitor voltage converter. Designed to be an
improved direct replacement for the popular 7660
and LTC1044, the main function of the AIC1660 is
to convert a positive input voltage in the range of
1.5V to 6V to the corresponding negative output
voltage in the range of -1.5V to -6V. The input
voltage can also be doubled (V
OUT
= 2V
IN
),
divided (V
OUT
= V
IN
/2 ), or multiplied (V
OUT
=
±
nV
IN
), as shown in application examples.
The chip contains a series DC power supply
regulator, oscillator, control circuitry and four
output power MOS switches. The frequency of
oscillator can be lowered by the addition of an
external capacitor to the OSC pin, or the oscillator
may be over-driven by an external clock.
The boost function is available to raise the
oscillator frequency to optimize performance in
specific applications. The “LV” terminal may be
tied to GND to improve low input voltage (V
IN
≤
3V) operation, or be left floating for input voltage
larger than 3V to improve power dissipation.
The AIC1660 provides performance superior to
previous designs by combining low output
impedance, low quiescent current with high
efficiency, and by eliminating diode drop voltage
losses. The only required external components
are two low cost electrolytic capacitors.
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| AIC1660CN | Switched-Capacitor Voltage Converter |
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| AIC1686 | Off-Line Power Supply Protection IC with Shunt Regulator |
| AIC1686CN | CMOS Hex Non-Inverting Buffer/Converter 16-TSSOP -55 to 125 |
| AIC1714 | Negative Voltage Regulator |
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