XC9801/XC9802
Series
Regulated Voltage Step-Up Charge Pump ICs
ETR0802_003a
■
GENERAL DESCRIPTION
The XC9801 series are fixed regulated voltage step-up charge pump ICs which provide stable, highly efficient, positive
voltages with the only external components required being 2 capacitors.
Since regulating is done via the control of the charge pump's gate voltage waveform, ripple is minimal. Output voltage is
selectable in 100mV steps within a 2.5V ~ 6.0V range.
Control of the XC9802 switches to PFM (pulse skip) during light loads without affecting output impedance or ripple so that the
IC is protected against drops in efficiency.
doubler.
As well as the ultra small MSOP-8A and USP-8 packages, the small consumption current and high efficiencies of the series
make the XC9801 suitable for use with all types of battery operated applications.
Connecting the SENSE pin to the GND pin allows the IC to be used as a voltage
■APPLICATIONS
●Palm
top computers, PDAs
●On
board local power supplies
●Various
battery powered devices
■FEATURES
Input Voltage Range
Output Voltage Range
Small Input Current
Output Current
Oscillation Frequency
Stand-by Current (CE ’L’)
CE (Chip Enable) Function
Can be used as a step-up doubler (sense = 0V)
Packages
Environmentally Friendly
: MSOP-8A, USP-8
: EU RoHS Compliant, Pb Free
: 1.8V ~ 5.5V
: 2.5V ~ 6.0V
: 80μA (no load:XC9802)
: 80mA (3.6V→5.0V step-up)
: 300kHz
: 2.0μA (MAX.)
PFM Operation During Light Loads (XC9802)
■TYPICAL
APPLICATION CIRCUIT
Regulation Output
■TYPICAL
PERFORMANCE
CHARACTERISTICS
1/12
XC9801/XC9802
Series
■PIN
CONFIGURATION
1
2
3
4
8
7
6
5
■PIN
ASSIGNMENT
PIN NUMBER
PIN NAME
USP-8
1
2
3
4
5
MSOP-8A
1
2
3
4
5
6
7
8
SENSE
CE
V
IN
GND
P
GND
C1−
C1＋
V
OUT
Output Voltage Monitor
Chip Enable (High Active)
Input (Power Supply)
Ground
Power Ground
External Capacitor - Pin
External Capacitor + Pin
Output
FUNCTION
MSOP-8A
(TOP VIEW)
PGND
8
V
OUT
5
C1- 6
C1+ 7
C1+ 7
C1- 6
V
OUT
8
PGND 5
1 SENSE
2 CE
3 V
IN
4 GND
6
7
8
USP-8
(BOTTOM VIEW)
■PRODUCT
CLASSIFICATION
●Selection
Guide
SERIES
XC9801
XC9802
PULSE SKIP MODE
Not Available
Available
●Ordering
Information
XC9801/XC9802
①②③④⑤⑥-⑦
(*1)
DESIGNATOR
①
ITEM
True Logic Level at CE Pin
SYMBOL
B
50
②③
Output Voltage
25 ~ 60
④
Oscillation Frequency
3
KR
⑤⑥-⑦
KR-G
Packages (Order Unit)
DR
DR-G
V
IN
< (V
OUT/2
), or V
IN
≧
V
OUT
(*1)
DESCRIPTION
Positive
Standard voltage
V
OUT
=5.0V→②=5,
③=0
Semi-custom voltage
e.g. V
OUT
=2.5V→②=2,
③=5
300kHz
MSOP-8A (1,000/Reel)
MSOP-8A (1,000/Reel)
USP-8 (3,000/Reel)
USP-8 (3,000/Reel)
Regulated output voltage function cannot be used by the following input voltage condition:
The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully RoHS compliant.
2/12
XC9801/XC9802
Series
■BLOCK
DIAGRAM
Controller
(1) Basic Operations
Using the XC9801/02’s clock generated by the internal oscillator, a step-up charge pump operation can be brought
about as a result of the alternate switching between operating conditions where P1 & N4 are ON with P2 & P3 OFF
(or) P1 & N4 are OFF with P2 & P3 ON. By connecting the SENSE pin to V
OUT
, output voltage can be feedback and
the difference between the feedback voltage and the reference voltage (Vref) are compared by the internal operational
amplifier. Output voltage can be stabilized (* 2) by controlling P3’s gate voltage waveform via the signal generated by
the internal amplifier.
Please note that this stabilizing function will not operate with V
IN
< (V
OUT/2
) or V
IN
≧
V
OUT
.
By connecting SENSE to ground, the output stability function, as described above, can be halted and the IC can be
used as a step-up doubler.
* 2 :
As a result of P3 gradually reaching an ON state with each clock (signal), rush current is controlled, the ripple
decreases and with the combination of the independent phase compensation circuit, output voltage is stabilized
(2) Stand-by Function
When the voltage at CE (chip enable) is ‘low’ (0V), P1, P2 & P3 will be OFF with N4 & N5 ON. The external capacitor
C1 will discharge and impedance at V
OUT
will be high.
(3) PFM (Pulse Skip) Operations
Whilst maintaining output voltage, the XC9802 provides the added security of protection against drops in efficiency
during light loads as a result of the pulse, generated by the internal oscillator, being skipped and the operating
frequency being changed.
■ABSOLUTE
MAXIMUM RATINGS
PARAMETER
V
IN
pin Voltage
V
OUT
pin Voltage
C1 + pin Voltage
C1 - pin Voltage
CE pin Voltage
V
OUT
Pin Output Current
MSOP-8A
Power Dissipation
USP-8
Operating Temperature Range
Storage Temperature Range
SYMBOL
V
IN
V
OUT
C1+
C1-
V
CE
I
OUT
Pd
Topr
Tstg
Ta = 25℃, GND = 0V
CONDITIONS
UNITS
V
−0.3∼6.0
V
−0.3∼12.0
V
−0.3∼V
OUT
＋0.3
V
−0.3∼V
OUT
＋0.3
V
−0.3∼V
IN
＋0.3
200
mA
150
mW
120
−40∼＋85
℃
−40∼＋125
℃
3/12
XC9801/XC9802
Series
■ELECTRICAL
CHARACTERISTICS
XC9801B503KR V
OUT
=5.0V
PARAMETER
Output Voltage
Load Regulation
Operating Voltage Range
Supply Current
Stand-by Current
Oscillation Frequency
Output Impedance
Input Current
Voltage Converting Efficiency
Power Converting Efficiency
CE / ’H’ Level Voltage
CE / ‘L’ Level Voltage
CE / Input Current
SYMBOL
V
OUT
△V
OUT
V
IN
I
DD
I
STB
FOSC
R
OUT
I
IN
I
IN2
V
EFFI
EFFI
EFFI2
EFFI3
V
CEH
V
CEL
I
CE
V
IN
=5.5V, SENSE=0V,
External Components=C
IN
only
CONDITIONS
Regulation Output
Regulation Output
I
OUT
=1mA
1mA≦I
OUT
≦80mA
MIN.
4.875
-100
1.8
1
-
255
-
-
-
95
I
OUT
=10mA
I
OUT
=1mA
I
OUT
=80mA
73
-
64
1.5
-
-2.0
TYP.
5.000
-
-
3
-
300
20
5
1.5
99
78
40
69
-
-
-
MAX.
5.125
100
5.5
6
2.0
345
40
-
-
-
-
-
-
-
0.25
2.0
Ta=25℃
UNITS
V
mV
V
mA
μA
kHz
Ω
mA
mA
%
%
%
%
V
V
μA
Doubler Output, V
OUT
>V
IN
×2×0.95
V
IN
=3.6V, External Components=C
IN
only,
SENSE=0V, V
OUT
=V
IN
CE=0V
External Component=C
IN
only,
SENSE=0V, V
OUT
open
Doubler Output
Doubler Output
Regulation Output
Doubler Output
Doubler Output
Regulation Output
I
OUT
=10mA
Test Conditions: Unless otherwise stated, Typical Application Circuit, V
IN
=3.6V,
GND=0V, CE=V
IN
, No Load, SENSE=V
OUT
(Regulation Output)
XC9802B503KR V
OUT
=5.0V
PARAMETER
Output Voltage
Load Regulation
Operating Voltage Range
Supply Current
Stand-by Current
Oscillation Frequency
Switching Pulse Frequency
Output Impedance
Input Current
Voltage Converting Efficiency
Power Converting Efficiency
CE /‘H’Level Voltage
CE /‘L’Level Voltage
CE / Input Current
SYMBOL
V
OUT
△V
OUT
V
IN
I
DD
I
STB
FOSC
FOSC2
R
OUT
I
IN
I
IN2
V
EFFI
EFFI
EFFI2
EFFI3
V
CEH
V
CEL
I
CE
V
IN
=5.5V, SENSE=0V,
External Components=C
IN
only
CONDITIONS
Regulation Output
Regulation Output
I
OUT
=1mA
1mA≦I
OUT
≦80mA
MIN.
4.875
-100
1.8
1
-
255
-
-
-
-
98
I
OUT
=10mA
I
OUT
=1mA
I
OUT
=80mA
73
-
64
1.5
-
-2.0
TYP.
5.000
-
-
3
-
300
10
20
5
0.08
99
78
59
69
-
-
-
MAX.
5.125
100
5.5
6
2.0
345
-
40
-
-
-
-
-
-
-
0.25
2.0
Ta=25℃
UNITS
V
mV
V
mA
μA
kHz
kHz
Ω
mA
mA
%
%
%
%
V
V
μA
Doubler Output, V
OUT
>V
IN
×2×0.95
V
IN
=3.6V, External Components=C
IN
only,
SENSE=0V, V
OUT
=V
IN
CE=0V
External Component = C
IN
only,
SENSE=0V, V
OUT
open
Regulation Output
Doubler Output
Doubler Output
Regulation Output
Doubler Output
Doubler Output
Regulation Output
I
OUT
=1mA
I
OUT
=10mA
Test Conditions: Unless otherwise stated, Typical Application Circuit, V
IN
=3.6V,
GND=0V, CE=V
IN
, No Load, SENSE=V
OUT
(Regulation Output)
4/12
XC9801/XC9802
Series
■ELECTRICAL
CHARACTERISTICS (Continued)
XC9801B333KR V
OUT
=3.3V
PARAMETER
Output Voltage
Load Regulation
Operating Voltage Range
Supply Current
Stand-by Current
Oscillation Frequency
Output Impedance
Input Current
Voltage Converting Efficiency
Power Converting Efficiency
CE / ‘H’ Level Voltage
CE / ‘L’ Level Voltage
CE / Input Current
SYMBOL
V
OUT
△V
OUT
V
IN
I
DD
I
STB
FOSC
R
OUT
I
IN
I
IN2
V
EFFI
EFFI
EFFI2
EFFI3
V
CEH
V
CEL
I
CE
V
IN
=5.5V, SENSE=0V,
External Components=C
IN
only
CONDITIONS
Regulation Output
Regulation Output
MIN.
3.218
-66
1.8
1
-
255
-
-
-
95
I
OUT
=10mA
I
OUT
=1mA
I
OUT
=32mA
73
-
64
1.5
-
-2.0
TYP.
3.300
-
-
3
-
300
20
5
1.1
99
78
40
69
-
-
-
MAX.
3.383
66
5.5
6
2.0
345
40
-
-
-
-
-
-
-
0.25
2.0
Ta=25℃
I
OUT
=1mA
UNITS
V
mV
V
mA
μA
kHz
Ω
mA
mA
%
%
%
%
V
V
μA
1mA≦I
OUT
≦2mA
Doubler Output, V
OUT
>V
IN
×2×0.95
V
IN
=3.6V, External components=C
IN
only,
SENSE=0V, V
OUT
=V
IN
CE=0V
External component=C
IN
only,
SENSE=0V, V
OUT
open
Doubler Output
Doubler Output
Regulation Output
Doubler Output
Doubler Output
Regulation Output
I
OUT
=10mA
Test Conditions: Unless otherwise stated, Typical Application Circuit, V
IN
=2.376V,
GND=0V, CE=V
IN
, No Load, SENSE=V
OUT
(Regulation Output)
XC9802B333KR V
OUT
=3.3V
PARAMETER
Output Voltage
Load Regulation
Operating Voltage Range
Supply Current
Stand-by Current
Oscillation Frequency
Switching Pulse Frequency
Output Impedance
Input Current
Voltage Converting Efficiency
Power Converting Efficiency
CE / ‘H’ Level Voltage
CE / ‘L’ Level Voltage
CE / Input Current
SYMBOL
V
OUT
△V
OUT
V
IN
I
DD
I
STB
FOSC
FOSC2
R
OUT
I
IN
I
IN2
V
EFFI
EFFI
EFFI2
EFFI3
V
CEH
V
CEL
I
CE
V
IN
=5.5V, SENSE=0V,
External Components=C
IN
only
CONDITIONS
Regulation Output
Regulation Output
MIN.
3.218
−66
1.8
1
-
255
-
-
-
-
98
I
OUT
=10mA
I
OUT
=1mA
I
OUT
=32mA
73
-
64
1.5
-
-2.0
TYP.
3.300
-
-
3
-
300
10
20
5
0.08
99
78
63
69
-
-
-
I
OUT
=1mA
Ta=25℃
MAX. UNITS
3.383
V
66
5.5
6
2.0
345
mV
V
mA
μA
kHz
kHz
40
-
-
-
-
-
-
-
0.25
2.0
Ω
mA
mA
%
%
%
%
V
V
μA
1mA≦I
OUT
≦32mA
Doubler Output, V
OUT
>V
IN
×2×0.95
V
IN
=3.6V, External Components=C
IN
only,
SENSE=0V, V
OUT
=V
IN
CE=0V
External Component = C
IN
only,
SENSE=0V, V
OUT
open
Regulation Output
Doubler Output
Doubler Output
Regulation Output
Doubler Output
Doubler Output
Regulation Output
I
OUT
=1mA
I
OUT
=10mA
Test Conditions: Unless otherwise stated, Typical Application Circuit, V
IN
=2.376V,
GND=0V, CE=V
IN
, No Load, SENSE=V
OUT
(Regulation Output)
5/12
嵌入式系统
