SP6660DS/11

SP6660 200mA Charge Pump Inverter or Doubler

© Copyright 2000 Sipex Corporation

1

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 5

Ω 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

200mA Charge Pump Inverter or Doubler

SP6660

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 400

µA 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.

OSC

OUT

SP6660

+1.5V to +4.25V

C1

1

µF to 150µF

5

1

2

7

4

FC

C2

1

µF to 150µF

CAP+

CAP-

GND

6

8

3

LV

NEGATIVE

VOLTAGE

OUTPUT

TYPICAL CIRCUIT: VOLTAGE INVERTER

+V

OSC

OUT

SP6660

+1.5V to +4.25V

C1

1

µF to 150µF

5

1

2

7

4

FC

C2

1

µF to 150µF

CAP+

CAP-

GND

6

8

3

LV

DOUBLE

VOLTAGE

OUTPUT

TYPICAL CIRCUIT: VOLTAGE DOUBLER

+V

®