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PDF SP6660 Data sheet ( Hoja de datos )
| Número de pieza | SP6660 | |
| Descripción | 200mA Charge Pump Inverter or Doubler | |
| Fabricantes | Sipex | |
| Logotipo |  |
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® 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
1 page  
DESCRIPTION
The SP6660 Charge Pump DC-DC Voltage
Converter either inverts or doubles the input
voltage. As a negative voltage inverter, as shown
in Figure 1, a +1.5V to +4.25V input can be
converted to a -1.5V to -4.25V output. Figure 2,
as a positive voltage doubler, a +2.5V to +4.25V
input can be converted to a +5.0V to +8.5V output.
Typical performance curves in Figures 3 to 20
are generated using the test circuits found in
Figure 1 and Figure 2. Four operating modes
are shown in the curves: Voltage inverter in low
and high frequency modes and voltage doubler
in low and high frequency modes.
TEST CIRCUIT: VOLTAGE INVERTER
FC 1
IS
V+
8
+VIN
CAP+
2
SP6660
7 OSC
C1 GND
3
LV
6
CAP- 4
5 OUT
IL
RL
C2
VOUT
Figure 1. SP6660 Test Circuit for the Voltage Inverter
+VIN
IS TEST CIRCUIT: VOLTAGE DOUBLER
FC
1
+V
8
CAP+
2
SP6660
7
OSC
GND
3
C1
LV
6
CAP- 4
5 OUT
VOUT
C2 RL
Figure 2. Test Circuit for the Positive Voltage Doubler
SP6660DS/11
SP6660 200mA Charge Pump Inverter or Doubler
5
© Copyright 2000 Sipex Corporation
5 Page 
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = +3.6V, TAMB = 25oC unless otherwise noted. LF = Low Frequency, FC = Open, C1 = C2 = 150µF.
HF = High Frequency, FC = V+, C1 = C2 = 22µF. Inverter Circuit use Figure 1. Doubler Circuit use Figure 2.
VIN = 3.6V
VOUT = 6.66V
IL = 100mA
VIN = 3.6V
VOUT = -3.06V
IL = 100mA
Figure 17. Output Noise and Ripple - Doubler LF
Figure 18. Output Noise and Ripple - Inverter LF
VIN = 3.6V
VOUT = 6.66V
IL = 100mA
VIN = 3.6V
VOUT = -3.06V
I = 100mA
L
Figure 19. Output Noise and Ripple - Doubler HF
Figure 20. Output Noise and Ripple - Inverter HF
SP6660DS/11
SP6660 200mA Charge Pump Inverter or Doubler
11
© Copyright 2000 Sipex Corporation
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet SP6660.PDF ] | |
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