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SP6830 Datasheet Preview

SP6830 Datasheet

Low Power Voltage Inverters

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® SP6830/6831
Low Power Voltage Inverters With Shutdown
FEATURES
s 99.9% Voltage Conversion Efficiency
s +1.15V to +5.3V Input Voltage Range
s Inverts Input Supply Voltage
s 70µA Supply Current for the SP6830
s 200µA Supply Current for the SP6831
s 35kHz Operating Frequency for the
SP6830
s 120kHz Operating Frequency for the
SP6831
s <1µA Shutdown Current
s 6-pin SOT23-6 Package
s Ideal for +3.6V Lithium Ion Battery
Applications
s Reverse +3.6V Lithium Ion Battery
Now available in Lead Free
Protection
s 25mA Output Current
s 19Output Resistance
APPLICATIONS
s Small LCD Negative Bias Voltage
s Power Amplifier Negative Bias Voltage
s +5V to -5V Voltage Conversion
DESCRIPTION
The SP6830/6831 devices are CMOS Charge Pump Voltage Inverters that can be imple-
mented into designs which require a negative voltage from a battery voltage source as low as
+1.15V or a power supply rail voltage as high as +5.3V. The SP6830/6831 devices are ideal
for both battery-powered and board level voltage conversion applications with a typical
operating current of 70µA for the SP6830 and 200µA for the SP6831. These devices combine
an ultra-low shutdown current of <1µA with high efficiency (>95% over most of its load-current
range) which are ideal for designs using batteries such as cell phones, PDAs, medical
instruments, and other portable equipment. The SP6830/6831 devices are available in a
space-saving 6-pin SOT23-6 Package.
VOUT 1
VIN 2
C1- 3
SP6830
SP6831
6 C1+
5 SHDN
4 GND
Rev. 9-22-00
SP6830/6831 Low Power Voltage Inverters With Shutdown
1
© Copyright 2000 Sipex Corporation




Sipex

SP6830 Datasheet Preview

SP6830 Datasheet

Low Power Voltage Inverters

No Preview Available !

ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation
of the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may
affect reliability.
VIN.........................................................-0.3V to +5.6V
V ......................................................-5.6V to +0.3V
OUT
I ......................................................................50mA
OUT
Storage Temperature.......................-65OC to +150OC
Lead Temperature (Soldering)..........................300OC
Power Dissipation Per Package
6-pin SOT (derate 4.35mW/OC above +70OC)............400mW
SPECIFICATIONS
V
IN
=
+5V,
C1=C2=C3=3.3µF
for
the
SP6830,
C1=C2=C3=1µF
for
the
SP6831,
and
TAMB=-40°C
to
+85°C
unless
otherwise
noted.
Typical values are
taken specifically at TAMB=+25°C.
PARAMETER
MIN.
TYP.
MAX. UNITS
CONDITIONS
Supply Voltage Range, VDD
Supply Current, IVIN
1.15
70
200
5.3 V RL = 1k
150
400
µA
SP6830
SP6831
Guaranteed Start-up Voltage
1.8 V RL = 1k, NOTE1
Shutdown Input Voltage
HIGH
LOW
1.5
VIN V VIN = VMIN to VMAX
0.5 VIN = VMIN to VMAX
Shutdown Supply Current
0.1 1.0 µA SHDN = GND, VIN = 5V, NOTE 2
Oscillator Frequency, fOSC
24.5
70
35
120
56.3
200
kHz
SP6830
SP6831
Output Resistance
19 45 IOUT = 5mA to 25mA, NOTE 3
Voltage Conversion Efficiency
95
99.9
% RL = open
Power Efficiency (Ideal)
98 % RL = 1k, NOTE 4
Power Efficiency (Actual)
96 % RL = 1k, NOTE 5
Note 1: Minimum VIN required for VO = -VIN +0.2V.
Note 2: During the shutdown mode, VIN is disconnected from VOUT.
1
Note 3: Capacitors are approximately 20% of the output impedance where ESR = fOSC x C .
Note 4: Power Efficiency (Ideal) =
VOUT x IOUT
-VIN x (-VIN/RL)
Note 5:
Power Efficiency (Actual) =
VOUT x IOUT
VIN x IIN
Rev. 9-22-00
SP6830/6831 Low Power Voltage Inverters With Shutdown
2
© Copyright 2000 Sipex Corporation


Part Number SP6830
Description Low Power Voltage Inverters
Maker Sipex
Total Page 16 Pages
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