SP6661 Datasheet, PDF (1/8 Pages) Sipex Corporation – High Frequency 200mA Charge Pump Inverter or Doubler

SP6661
High Frequency 200mA Charge Pump
Inverter or Doubler
FEATURES
■ Inverts or Doubles Input Supply Voltage
■ 92% Power Efficiency at 100mA
■ 120kHz/900kHz Selectable Oscillator Fre-
quency
1
8
2
SP6661
7
3
8 Pin MSOP
6
■ 4.5Ω Output Resistance Using 3.3µF Ceramic
4
5
Caps
■ Low Voltage Battery Operation
■ Ideal for 3.6V Lithium Ion Battery or 5.0V Input _{Now Available in Lead Free Packaging}
■ High Output Current – 200mA
■ Low Profile Solution
■ Pin-Compatible High-Current Upgrade
■ 1.5V Inverter Startup Guaranteed
of the ICL7660 and 660 Industry
Standard
■ Smallest Package Available for the 660
Industry Standard – 8 pin MSOP
DESCRIPTION
The SP6661 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 -5.0V output can
be converted from a +1.5V to +5.0V input. As a Voltage Doubler, a +5.0V to +10.0V output can
be provided from a +2.5V to +5.0V input. The SP6661 is ideal for both battery-powered and board
level voltage conversion applications with a typical operating current of 3mA and a high efficiency
(>90%) over most of its load-current range. Typical end products for this device are disk drive
supplies, operational amplifier and interface power supplies, medical instruments, and hand held
and laptop computers. The SP6661 is available in 8-pin NSOIC, and µSOIC packages.
TYPICAL APPLICATIONS CIRICUIT
+VIN
+2.5V to +5.0V
FC
1
C1
1µF to 22µF
CAP+
2
GND
3
CAP- ₄
®
+V
8
SP6661
7 ^OSC
LV
6
+VIN
+1.5V to +5.0V
C3
1µF to 22µF
5 ^OUT
INVERTED
NEGATIVE
VOLTAGE
OUTPUT
C2
1µF to 22µF
C3
1µF to 22µF
FC
1
C1
1µF to 22µF
CAP+
2
GND
3
CAP- ₄
®
+V
8
SP6661 7 _OSC
LV
6
5 ^OUT
DOUBLE
NEGATIVE
VOLTAGE
OUTPUT
C2
1µF to 22µF
Figure 1: Voltage Inverter
Figure 2: Voltage Doubler
Date: 09/16/04
SP6661 High Frequency 200mA Charge Pump Inverter or Doubler
1
© Copyright 2004 Sipex Corporation