SP6660 Datasheet, PDF (1/22 Pages) Sipex Corporation – 200mA Charge Pump Inverter or Doubler

®
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