Datasheet > AIC1660

AIC1660

更新时间： 2024-11-05 22:39:51

品牌	Logo	应用领域
沛亨 - AIC		转换器开关
页数	文件大小	规格书
8页	105K
描述
Switched-Capacitor Voltage Converter

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AIC1660 数据手册

AIC1660

Switched-Capacitor Voltage Converter

n FEATURES

n DESCRIPTION

l Lowest Output Impedance (Typical 35W at

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),

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 36mA at V_IN=5V).

l High Power Efficiency (Typical 98%)

l Boost Pin for Higher Switching Frequency.

l Improved SCR Latchup Protection.

divided (V_OUT= V /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.

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.

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.

n TYPICAL APPLICATION CIRCUIT

(1.5V to 6V)

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.

Required for

AIC1660

V ^£3V

10 F

V_OUT=-V

10 F

Negative Voltage Converter

Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC

DS-1660T-P4 Oct. 4, 01 TEL: 886-3-5772500 FAX: 886-3-5772510

www.analog.com.tw

12 3 4 5 6 7 8

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