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SP6680 Datasheet Preview

SP6680 Datasheet

High Efficiency Buck/Boost Charge Pump Regulator

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® SP6680
High Efficiency Buck/Boost Charge Pump Regulator
Ideal For Sim Card Applications In
Cellular Phones
Low Profile, Inductorless Regulator
Up To 96% Power Efficiency
+2.7V to +6.3V Input Voltage Range
5.8V Output Voltage
60mA Output Current
75µA Quiescent Current
4µA Shutdown Current
External 32.768kHz Clock Input
Three Programmable Charge Pump
Frequencies: 8.192kHz, 32.768kHz,
and 262.14kHz
Internal Oscillator At 16.7kHz, When
CLK Pin Is Held High
Space Saving 10-Pin µSOIC Package
VOUT 1
CF1P 2
VIN 3
C/4 4
CX8 5
SP6680
10 Pin MSOP
10 CF2P
9 CF1N
8 GND
7 CF2N
6 CLK
Now Available in Lead Free Packaging
DESCRIPTION
The SP6680 is a charge pump ideal for converting a +3.6V Li-Ion battery input to a +5.0V
regulated output. An input voltage range of +2.7V to +6.3V is converted to a regulated output
of 5.8V. The SP6680 device will operate at three different switching frequencies correspond-
ing to three different output resistances and load current ranges. An external 32.768kHz
nominal clock signal is used to produce three synchronized pump frequencies through the use
an internal phase look loop of an to drive the charge pump. Two control inputs can adjust the
internal pump frequency on the fly to 8.192kHz (fINPUT / 4), 32.768kHz (fINPUT x 1), or 262.14kHz
(fINPUT x 8). The charge pump configuration dynamically changes to optimize power efficiency.
At low input voltages the charge pump doubles the input while at higher inputs the output is
1.5 times the input. The SP6680 can deliver high power efficiencies up to 96% with low
quiescent currents from 75µA to 800µA. The SP6680 is offered in a 10-Pin µSOIC package.
TYPICAL APPLICATION CIRCUIT
2.2µF
2.2µF
+3.6V
Lithium-Ion
Battery
4.7µF
CF1P
2
VIN 3
C/4
Cx8
CLK
CF1N
9
CF2P
10
CF2N
7
SP6680
1
456
8
GND
VOUT = +5.8V
2.2µF
SP6200
CMOS
LDO
VIN VOUT
GND
2.2µF
+5.0V output
Date: 5/25/04
SP6680 High Efficiency Buck/Boost Charge Pump Regulator
1
*All Capacitors Are Ceramic
© Copyright 2004 Sipex Corporation




Sipex

SP6680 Datasheet Preview

SP6680 Datasheet

High Efficiency Buck/Boost Charge Pump Regulator

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 +7.0V
VOUT......................................................-0.3V to +7.0V
IOUT....................................................................100mA
Storage Temperature........................-65˚C to +150˚C
Power Dissipation Per Package
10-pin mSOIC
(derate 8.84mW/OC above +70OC)..................720mW
Junction Temperature........................................125˚C
ELECTRICAL CHARA CTERISTICS
VIN = +2.7 to +6.3V, fCLK = 32.768kHz, CIN = 4.7µF (ceramic), CF1 = CF2 = COUT = 2.2µF, (ESR = 0.03 ) and TAMB = -40°C to +85°C unless otherwise
noted.
PARAMETER
MIN. TYP. MAX. UNITS
CONDITIONS
Supply Voltage, VIN
Quiescent Current, I
Q
In-Rush Current into VIN,
IINRUSH
Off Current, IOFF
Input Clock Frequency,
fCLK
Pump Frequency, fPUMP
(Note 2)
2.75 3.6
6.3
75 150
170 300
800 1500
500
4.4 10
32.768
V
f = f /4
PUMP CLK
µA fCLK = fPUMP
fPUMP = fCLK x 8
VIN = 4.2V
mA 2.7V<VIN<6.3V, Note 1
µA VIN = 4.2V, clock not present, -40˚ C to +70˚ C
kHz Operational (supplied externally)
0
32.768
8.192
262.14
16.7
fCLK C/4pin input Cx8pin input
no input
kHz present
present
present
high
X
low
high
X
low
X
low
low
high
low
Input Threshold Voltage
VIL
VIH
Input Current
IIN(low)
IIN(high)
Mode Transition Voltage,
X1.5 to X2, VIN falling
Hysteresis for Mode
Transition Voltage
1.3
3.55
3.55
0.1
1.0
3.70
3.70
50
0.4 V Digital inputs = fCLK, fCLK/4, fCLK x 8
Digital inputs = fCLK, fCLK/4, fCLK x 8
10
10
3.85
3.85
µA Digital inputs = fCLK, fCLK/4, fCLK x 8
Digital inputs = fCLK, fCLK/4, fCLK x 8
V
fpump = fCLK/4, ILOAD = 1mA
fpump, fCLK, ILOAD = 5mA
mVpp VIN rising to VIN falling
Transient Response:
Maximum Transient
Amplitude
ILOAD t fPUMP
1.5
% 100µA to 2mA
5µs
8.192kHz
1.5
2mA to 20mA
5µs
32.768kHz
1.5
20mA to 60mA
5µs
262.14kHz
Date: 5/25/04
SP6680 High Efficiency Buck/Boost Charge Pump Regulator
2
© Copyright 2004 Sipex Corporation


Part Number SP6680
Description High Efficiency Buck/Boost Charge Pump Regulator
Maker Sipex
Total Page 12 Pages
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