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SP6660

200mA Charge Pump Inverter or Doubler

Signal Processing Technologies 

®

SP6660

200mA Charge Pump Inverter or Doubler

s Inverts or Doubles Input Supply Voltage

s 93% Power Efficiency at 3.6V

s 10kHz/80kHz Selectable Oscillator

s External Oscillator up to 700KHz

s 5Ω Output Resistance at 3.6V

s Low Voltage Battery Operation

s Ideal for 3.6V Lithium Ion Battery

s High Output Current – 200mA

s Pin-Compatible High-Current Upgrade of

the ICL7660 and 660 Industry Standard

s Smallest Package Available for the 660

Industry Standard – 8pin µSOIC

DESCRIPTION

The SP6660 is a CMOS DC-DC Monolithic Voltage Converter that can be implemented as a

Voltage Inverter or a Positive Voltage Doubler. As a Voltage Inverter, a -1.5V to -4.25V output

can be converted from a +1.5V to +4.25V input. As a Voltage Doubler, the SP6660 can provide

a +8.0V output at 100mA from a +4.25V input. The SP6660 is ideal for both battery-powered

and board level voltage conversion applications with a typical operating current of 400µA and

a high efficiency (>90%) over most of its load-current range. Typical end products for this

device are operational amplifier and interface power supplies, medical instruments, and hand-

held and laptop computers. The SP6660 is available in 8-pin DIP, SOIC, and µSOIC

packages.

TYPICAL CIRCUIT: VOLTAGE INVERTER

FC

1

C1

1µF to 150µF

CAP+

2

GND

3

CAP- 4

SP6660

+V

8

7

LV

6

+VIN

+1.5V to +4.25V

OSC

5 OUT

NEGATIVE

VOLTAGE

OUTPUT

C2

1µF to 150µF

+VIN

+1.5V to +4.25V

TYPICAL CIRCUIT: VOLTAGE DOUBLER

FC

C1

1µF to 150µF

1

CAP+

2

GND

3

CAP- 4

SP6660

+V

8

7

OSC

LV

6

5 OUT

DOUBLE

VOLTAGE

OUTPUT

C2

1µF to 150µF

SP6660DS/11

SP6660 200mA Charge Pump Inverter or Doubler

1

© Copyright 2000 Sipex Corporation

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