Input Voltage Range : 1.8V ~ 5.5V
Applications
Output Voltage Range : 2.5V ~ 5.2V
Palm top computers, PDAs
Oscillator Frequency : 300kHz
On Board Local Power Supplies
Maximum Output Current : 80mA (3.6
5V step-up)
Various Battery Powered Devices
PFM (pulse skip) Operation During Light Loads (XC9802)
CE (chip enable) Function
MSOP-8A and USP-8 Packages
General Description
Features
Input Voltage Range : 1.8V
~
5.5V
Output Voltage Range : 2.5V
~
5.2V
Small Input Current : 80
A (no load:XC9802)
Output Current : 80mA (3.6V
5V step-up)
Oscillator Frequency : 300kHz
Stand-By Current (CE 'L') : 2.0
A (max)
Can be used as a Step-Up Doubler (sense = 0V)
MSOP-8A and USP-8 Package
Pin Configuration
Pin Assignment
MSOP-8A USP-8
1
1
SENSE
2
2
CE
3
3
VIN
4
4
GND
5
5
PGND
6
6
C1 -
7
7
C1 +
8
8
VOUT
Selection Guide
SERIES
XC9801
pulse skip
XC9802
pulse skip
Ordering Information
XC9801/02
DESIGNATOR
B
3
K
D
Package :USP-8
R
L
* Avoid the following condition VIN < (VOUT/2) or VIN VOUT
Embossed tape. Standard Feed
Embossed tape. Reverse Feed
Step-Up Charge Pump ICs
March 1, 2003, V6
FUNCTION
25~52
Oscillator Frequency : 300kHz
Package : MSOP-8A
DESCRIPTION
Power Ground
True Logic Level at CE Pin : Positive
Output Voltage* 5V: standard 2.5V ~ 5.2V: semi-custom
5.0V
=5, =0
Output Voltage Monitor
Chip Enable
Input (power supply)
Ground
XC9801/02 Series
External Capacitor
-
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 0.1V steps within a
2.5V ~ 5.2V range.
Control of 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. Connecting the SENSE pin to the GND pin allows the IC to be used
as a voltage 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.
PIN NUMBER
PIN NAME
FUNCTION
External Capacitor +
Output
SENSE 1
CE 2
VIN 3
GND 4
8 VOUT
7 C1 +
6 C1 -
MSOP-8A
(TOP VIEW)
SENSE 1
CE 2
VIN 3
GND 4
8 VOUT
7 C1 +
6 C1 -
5 PGND
USP-8
(TOP VIEW)
1
Block Diagram
(1) Basic Operations
(2) Stand-by Function
(3) PFM (Pulse Skip) Operations
Absolute Maximum Ratings
Ta = 25
O
C, GND = 0V
MSOP-8A
USP-8
2
TBD
mW
Power dissipation
Pd
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 Vout will be high.
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.
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 VOUT, output voltage can be fedback and
the difference between the feedback voltage and the reference voltage (Vref) are compared by the internal operational
amplifier. Output voltage can be stabilized (Note 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 VIN < (VOUT/2) or VIN
VOUT.
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.
Note 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
- 40
~
+ 85
- 40
~
+ 125
UNITS
V
V
V
V
CE
V
V
mA
CONDITIONS
-0.3
~
6
-0.3
~
12
-0.3
~
VOUT + 0.3
Operating Temperature
Storage Temperature
Topr
Tstg
O
C
O
C
C1 - pin voltage
CE pin voltage
I
OUT
-0.3
~
VOUT + 0.3
-0.3
~
VIN + 0.3
200
150
PARAMETER
V
IN
pin voltage
V
OUT
pin voltage
C1 + pin voltage
XC9801/02 Series
Step-Up Charge Pump ICs
SYMBOL
V
IN
V
OUT
C1+
C1-
V
OUT
pin output current
VIN
CE
C1+
C1-
VOUT
SENSE
GND
PGND
Chip
Enable
Oscillator
Vref
Controler
P1
P2
P3
N4
N5
Electrical Characteristics
XC9801B503KR VOUT=5.0V
XC9802B503KR VOUT=5.0V
3
Test Conditions : Unless otherwise stated, Typical Application Circuit, V
IN
=3.6V, GND=0V, CE=V
IN
, No Load, SENSE=V
IN
(Regulation Output)
Test Conditions : Unless otherwise stated, Typical Application Circuit, V
IN
=3.6V, GND=0V, CE=V
IN
, No Load, SENSE=V
IN
(Regulation Output)
CE / Input Current
I
CE
V
IN
=5.5V, SENSE=0V, External Components=CIN
-2.0
2.0
A
FOSC2
CE / Input Current
I
CE
V
IN
=5.5V, SENSE=0V, External Components=CIN
-2.0
2.0
A
kHz
Switching Pulse Frequency
Regulation Output
I
OUT
=1mA
10
99
V
V
CE / 'H' Level Voltage
V
CEH
1.5
64
CE / 'L' Level Voltage
V
CEL
0.25
69
%
EFFI3
I
OUT
=80mA
%
EFFI2
Regulation Output
I
OUT
=1mA
59
%
%
Power Converting Efficiency
EFFI
Doubler Output
I
OUT
=10mA
73
78
Voltage Converting Efficiency
VEFFI Doubler Output
98
5
Doubler Output
mA
I
IN
2
Regulation Output
0.08
mA
Input Current
I
IN
20
40
Output Impedence
R
OUT
Doubler Output
I
OUT
=10mA
2.0
A
Oscillator Frequency
FOSC
External Component : C
IN
, SENSE=0V, V
OUT
open
255
300
345
kHz
Stand-by Current
I
STB
CE=0V
V
IN
Doubler Output, V
OUT
> V
IN
2 0.95
1.8
5.5
V
Supply Current
I
DD
V
IN
=3.6V, External Components=CIN, SENSE=0V, V
OUT=
V
IN
1
3
6
mA
Operating Voltage Range
-100
100
mV
Load Regulation
V
OUT
Regulation Output
1mA
I
OUT
80mA
4.875
5.0
5.125
V
Output Voltage
V
OUT
Regulation Output
I
OUT
=1mA
V
Ta=25
O
C
PARAMETER
SYMBOL
CONDITIONS
MIN. TYP. MAX. UNITS
%
1.5
V
%
40
%
95
99
%
1.5
mA
5
mA
20
40
255
300
345
kHz
mA
2.0
A
MIN. TYP. MAX.
1
3
6
1.8
5.5
V
4.875
Ta=25
O
C
-100
100
mV
5.0
5.125
V
UNITS
External Component=C
IN
, SENSE=0V, V
OUT
open
Regulation Output
Doubler Output
Regulation Output
I
OUT
=10mA
Doubler Output
Regulation Output
Regulation Output
Doubler Output
I
OUT
=1mA
1mA
I
OUT
80mA
Doubler Output, V
OUT
> V
IN
2 0.95
V
IN
=3.6V, External Components=CIN, SENSE=0V, V
OUT=
V
IN
CE=0V
Doubler Output
I
OUT
=1mA
I
OUT
=80mA
I
OUT
=10mA
73
78
EFFI2
EFFI3
V
CEH
V
CEL
0.25
64
69
FOSC
R
OUT
I
IN
I
IN
2
VEFFI
EFFI
Oscillator Frequency
Output Impedence
Input Current
CE / 'L' Level Voltage
Voltage Converting Efficiency
Power Converting Efficiency
CE / 'H' Level Voltage
Supply Current
Stand-by Current
I
DD
I
STB
Output Voltage
Load Regulation
Operating Voltage Range
V
OUT
V
OUT
V
IN
CONDITIONS
PARAMETER
SYMBOL
XC9801/02 Series
Step-Up Charge Pump ICs
Electrical Characteristics
XC9801B333KR VOUT=3.3V
XC9802B333KR VOUT=3.3V
4
Test Conditions : Unless otherwise stated, Typical Application Circuit, V
IN
=3.6V, GND=0V, CE=V
IN
, No Load, SENSE=V
IN
(Regulation Output)
0.25
V
CE / Input Current
I
CE
V
IN
=5.5V, SENSE=0V, External Components=CIN
-2.0
2.0
A
CE / 'L' Level Voltage
V
CEL
2.0
A
Test Conditions : Unless otherwise stated, Typical Application Circuit, V
IN
=3.6V, GND=0V, CE=V
IN
, No Load, SENSE=V
IN
(Regulation Output)
Ta=25
O
C
I
CE
V
IN
=5.5V, SENSE=0V, External Components=CIN
-2.0
69
%
CE / 'H' Level Voltage
V
CEH
1.5
V
EFFI3
64
I
OUT
=80mA
63
%
EFFI2
Regulation Output
I
OUT
=1mA
73
78
%
Power Converting Efficiency
EFFI
Doubler Output
I
OUT
=10mA
mA
Voltage Converting Efficiency
VEFFI
98
99
I
IN
2
%
Doubler Output
Regulation Output
20
40
Doubler Output
I
OUT
=10mA
0.08
Input Current
I
IN
Doubler Output
5
mA
Output Impedence
R
OUT
345
kHz
Switching Pulse Frequency
FOSC2 Regulation Output
I
OUT
=1mA
10
kHz
Oscillator Frequency
FOSC
External Component : C
IN
, SENSE=0V, V
OUT
open
3
I
DD
V
IN
=3.6V, External Components=CIN, SENSE=0V, V
OUT=
V
IN
1
255
300
6
mA
Stand-by Current
I
STB
CE=0V
2.0
A
Supply Current
66
mV
Operating Voltage Range
V
IN
Doubler Output, V
OUT
> V
IN
2 0.95
1.8
5.5
V
Load Regulation
V
OUT
-66
Regulation Output
1mA
I
OUT
32mA
3.218
3.3
3.383
V
Output Voltage
V
OUT
Regulation Output
I
OUT
=1mA
MIN. TYP. MAX. UNITS
PARAMETER
SYMBOL
CONDITIONS
CE / Input Current
V
CE / 'L' Level Voltage
V
CEL
0.25
V
CE / 'H' Level Voltage
V
CEH
1.5
64
69
%
EFFI3
I
OUT
=80mA
%
EFFI2
Regulation Output
I
OUT
=1mA
40
%
99
%
Power Converting Efficiency
EFFI
Doubler Output
I
OUT
=10mA
73
78
Voltage Converting Efficiency
VEFFI Doubler Output
95
5
mA
I
IN
2
Regulation Output
1.5
mA
Input Current
I
IN
Doubler Output
20
40
Output Impedence
R
OUT
Doubler Output
I
OUT
=10mA
2.0
A
Oscillator Frequency
FOSC
External Component=C
IN
, SENSE=0V, V
OUT
open
255
300
345
kHz
Stand-by Current
I
STB
CE=0V
5.5
V
Supply Current
I
DD
V
IN
=3.6V, External Components=CIN, SENSE=0V, V
OUT=
V
IN
1
3
6
mA
Operating Voltage Range
V
IN
Doubler Output, V
OUT
> V
IN
2 0.95
1.8
-66
66
mV
Load Regulation
V
OUT
Regulation Output
1mA
I
OUT
32mA
Ta=25
O
C
PARAMETER
SYMBOL
CONDITIONS
MIN. TYP. MAX. UNITS
Output Voltage
V
OUT
Regulation Output
I
OUT
=1mA
3.218
3.3
3.383
V
XC9801/02 Series
Step-Up Charge Pump ICs
Typical Application Circuits
Regulation Output
Doubler Output
External Components
CIN=1
F (Ceramic Capacitor: Taiyo Yuden)
C1=0.47
F (Ceramic Capacitor: Taiyo Yuden)
C2=4.7
F (Ceramic Capacitor: Taiyo Yuden)
Note : The XC9801 series are step-up charge pump voltage doublers which provide regulated output voltage.
The application circuit of the doubler output ( ) halts the regulated output function and operates as a normal
voltage doubler.
The output voltage is stable when connected as in ( ) above, except when VIN < (VOUT / 2) and VIN
VOUT.
5
XC9801/02 Series
Step-Up Charge Pump ICs
SENSE
CE
VIN
GND
VOUT
C1+
C1-
PGND
VIN
CIN
C1
C2
RL
VOUT
SENSE
CE
VIN
GND
VOUT
C1+
C1-
PGND
VIN
CIN
C1
C2
RL
VOUT
Electrical Characteristics (3.3V)
(1) Output Voltage vs. Output Current
(2) Efficiency vs. Output Current
(3) Output Current vs. Ripple Voltage
6
XC9801/02 Series
Step-Up Charge Pump ICs
XC9801B333KR(300kHz,3.3V)
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
4.0
0
30
60
90
120
150
Output Current I
OUT
(mA)
O
u
tput V
o
ltage V
OU
T
(V)
VIN=2.376V
VIN=1.98V
VIN=2.76V
CIN=1
F(ceramic)
C1=0.47
F,C2=4.7
F(ceramic)
XC9802B333KR(300kHz,3.3V)
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
4.0
0
30
60
90
120
150
Output Current I
OUT
(mA)
O
u
tput V
o
ltage V
OU
T
(V
)
VIN=1.98V
VIN=2.376V VIN=2.76V
CIN=1
F(ceramic)
C1=0.47
F,C2=4.7
F(ceramic)
XC9801B333KR(300kHz,3.3V)
0
20
40
60
80
100
0.01
0.1
1
10
100
1000
Output Current I
OUT
(mA)
E
fficiency E
F
F
I
(%
)
VIN=2.376V
VIN=1.98V
VIN=2.76V
CIN=1
F(ceramic)
C1=0.47
F,C2=4.7
F(ceramic)
XC9802B333KR(300kHz,3.3V)
0
20
40
60
80
100
0.01
0.1
1
10
100
1000
Output Current I
OUT
(mA)
E
fficiency E
F
F
I
(%
)
VIN=1.98V
VIN=2.376V
VIN=2.76V
CIN=1
F(ceramic)
C1=0.47
F,C2=4.7
F(ceramic)
XC9801B333KR(300kHz,3.3V)
0
20
40
60
80
100
0.01
0.1
1
10
100 1000
VIN=2.76V
VIN=2.376V
VIN=1.98V
CIN=1
F(ceramic)
C1=0.47
F,C2=4.7
F(ceramic)
XC9802B333KR(300kHz,3.3V)
0
20
40
60
80
100
0.01
0.1
1
10
100
1000
VIN=2.76V
VIN=2.376V
VIN=1.98V
CIN=1
F(ceramic)
C1=0.47
F,C2=4.7
F(ceramic)
R
i
pple V
o
ltage V
r(m
V
)
Output Current I
OUT
(mA)
Output Current I
OUT
(mA)
R
i
pple V
o
ltage V
r(m
V
)
Electrical Characteristics (5.0V)
(1) Output Voltage vs. Output Current
(2) Efficiency vs. Output Current
(3) Output Voltage vs. Ripple Voltage
7
XC9801/02 Series
Step-Up Charge Pump ICs
XC9801B503KR(300kHz, 5.0V)
4.0
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
0
50
100
150
200
Output Current I
OUT
(mA)
Out
put
Vol
t
age V
OU
T
(V
)
VIN=3.6V
VIN=3V
VIN=4V
CIN=1
F(ceramic)
C1=0.47
F,C2=4.7
F(ceramic)
XC9802B503KR(300kHz,5.0V)
4.0
4.2
4.4
4.6
4.8
5.0
5.2
5.4
5.6
0
50
100
150
200
Output Current I
OUT
(mA)
O
u
tput V
o
ltage V
OU
T
(V
)
VIN=3V
VIN=3.6V
VIN=4V
CIN=1
F(ceramic)
C1=0.47
F,C2=4.7
F(ceramic)
XC9801B503KR(300kHz,5.0V)
0
20
40
60
80
100
0.01
0.1
1
10
100
1000
Output Current I
OUT
(mA)
E
f
f
i
ci
e
n
cy E
F
F
I
(
%
)
VIN=3.6V
VIN=3V
VIN=4V
CIN=1
F(ceramic)
C1=0.47
F,C2=4.7
F(ceramic)
XC9802B503KR(300kHz,5.0V)
0
20
40
60
80
100
0.01
0.1
1
10
100
1000
Output Current I
OUT
(mA)
Ef
f
i
ci
ency EFFI
(
%
)
VIN=3V
VIN=3.6V
VIN=4V
CIN=1
F(ceramic)
C1=0.47
F, C2=4.7
F(ceramic)
XC9801B503KR(300kHz,5.0V)
0
20
40
60
80
100
0.01
0.1
1
10
100 1000
Output Current I
OUT
(mA)
R
i
pple V
o
ltage V
r(m
V
)
VIN=4V
VIN=3.6V
VIN-3V
CIN=1
F(ceramic)
C1=0.47
F, C2=4.7
F(ceramic)
XC9802B503KR(300kHz,5.0V)
0
20
40
60
80
0.01
0.1
1
10
100
1000
Output Current I
OUT
(mA)
VIN=4V
VIN=3.6V
VIN=3V
CIN=1
F(ceramic)
C1=0.47
F, C2=4.7
F(ceramic)
R
i
pple V
o
ltage V
r(m
V
)
Electrical Characteristics (Doubler)
(1) Output Voltage vs. Output Current
(2) Efficiency vs. Output Current
(3) Ripple Voltage vs. Output Current
8
XC9801/02 Series
Step-Up Charge Pump ICs
XC9801B503KR
(300kHz,SENSE=0V Doubler)
4.0
5.0
6.0
7.0
8.0
0
20
40
60
80
100
Output Current I
OUT
(mA)
O
u
tput V
o
ltage V
OU
T
(V
)
VIN=3V
VIN=3.6V
VIN=4V
CIN=1
F(ceramic)
C1=0.47
F,C2=4.7
F(ceramic)
XC9801B503KR
(300kHz,SENSE=0V Doubler)
0
20
40
60
80
100
0.1
1
10
100
Output Current I
OUT
(mA)
E
ffic
i
e
n
c
y
E
F
F
I
(%
)
VIN=3V
VIN=3.6V
VIN=4V
CIN=1
F(ceramic)
C1=0.47
F, C2=4.7
F(ceramic)
XC9801B503KR
(300kHz, SENSE=0V, Doubler)
0
20
40
60
80
100
0.1
1
10
100
1000
Output Current I
OUT
(mA)
R
i
pple V
o
ltage V
r
(m
V
)
VIN=4V
VIN=3.6V
VIN=3V
CIN=1
F(ceramic)
C1=0.47
F, C2=4.7
F(ceramic)
Packaging Information (Dimensions : mm)
MSOP-8A : (1,000 pcs./reel)
USP-8 : (1,000 pcs./reel)
9
XC9801/02 Series
Step-Up Charge Pump ICs
3.
00
0.
1
0
4.
90
0.
1
0
3. 00 0. 10
0.
53
0.
13
0
0.
00
0.
20
0. 30
+0. 08
- 0. 02
1.
0
2
0.
86
+0
.
1
1
-0
.
1
0
+0
.
2
0
-0
.
2
1
0. 15
+0. 08
- 0. 02
(0. 65)
+
+
+
~
~
6
O
+
1.
5
0
2.
5
0
0
.
10
0
.
25
0.
58
5
2.70
0.375
0.15
0.65
0.30
2.30
Recommended Pattern Layout (Dimensions : mm)
MSOP-8A
USP-8
10
XC9801/02 Series
Step-Up Charge Pump ICs
0.
85
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2.7
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0.65
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0.425
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