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XC9801/02 Series
Step-Up Charge Pump ICs
March 1, 2003, V6
Input Voltage Range : 1.8V ~ 5.5V Output Voltage Range : 2.5V ~ 5.2V Oscillator Frequency : 300kHz Maximum Output Current : 80mA (3.65V step-up) PFM (pulse skip) Operation During Light Loads (XC9802) CE (chip enable) Function MSOP-8A and USP-8 Packages
Applications Palm top computers, PDAs On Board Local Power Supplies Various Battery Powered Devices
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 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.
Features
Input Voltage Range : 1.8V ~ 5.5V Output Voltage Range : 2.5V ~ 5.2V Small Input Current : 80A (no load:XC9802) Output Current : 80mA (3.6V 5V step-up) Oscillator Frequency : 300kHz Stand-By Current (CE 'L') : 2.0A (max) Can be used as a Step-Up Doubler (sense = 0V) MSOP-8A and USP-8 Package
Pin Configuration
SENSE 1 CE 2 VIN 3 GND 4 MSOP-8A (TOP VIEW) USP-8 (TOP VIEW) 8 VOUT 7 C1 + 6 C1 -
Pin Assignment
PIN NUMBER SENSE 1 CE 2 VIN 3 GND 4 8 VOUT 7 C1 + 6 C1 5 PGND
MSOP-8A USP-8
PIN NAME SENSE CE VIN GND PGND C1 C1 + VOUT
FUNCTION Output Voltage Monitor Chip Enable Input (power supply) Ground Power Ground External Capacitor External Capacitor + Output
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
Selection Guide
SERIES XC9801 XC9802 FUNCTION pulse skip pulse skip x
Ordering Information
XC9801/02
DESIGNATOR
B 25~52 3 K D R L * Avoid the following condition
DESCRIPTION True Logic Level at CE Pin : Positive Output Voltage* 5V: standard 2.5V ~ 5.2V: semi-custom 5.0V =5, =0 Oscillator Frequency : 300kHz Package : MSOP-8A Package :USP-8 Embossed tape. Standard Feed Embossed tape. Reverse Feed VIN < (VOUT/2) or VIN VOUT
1
XC9801/02 Series
Block Diagram
C1+
Step-Up Charge Pump ICs
C1-
VIN N5
P1
P2
VOUT
N4 CE Chip Enable
P3 SENSE
Oscillator
Controler
Vref
GND
PGND
(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 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
(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 Vout 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
Ta = 25 OC, GND = 0V
PARAMETER VIN pin voltage VOUT pin voltage C1 + pin voltage C1 - pin voltage CE pin voltage VOUT pin output current Power dissipation
MSOP-8A USP-8
SYMBOL VIN VOUT C1+ C1VCE IOUT Pd Topr Tstg
Operating Temperature Storage Temperature
CONDITIONS -0.3 ~ 6 -0.3 ~ 12 -0.3 ~ VOUT + 0.3 -0.3 ~ VOUT + 0.3 -0.3 ~ VIN + 0.3 200 150 TBD - 40 ~ + 85 - 40 ~ + 125
UNITS V V V V V mA mW
O O
C C
2
XC9801/02 Series
Electrical Characteristics
XC9801B503KR VOUT=5.0V PARAMETER Output Voltage Load Regulation Operating Voltage Range Supply Current Stand-by Current Oscillator Frequency Output Impedence Input Current Voltage Converting Efficiency Power Converting Efficiency SYMBOL VOUT VOUT VIN IDD ISTB FOSC ROUT IIN IIN2 VEFFI EFFI EFFI2 EFFI3 VCEH VCEL ICE
Step-Up Charge Pump ICs
CONDITIONS IOUT=1mA Regulation Output 1mA IOUT 80mA Regulation Output Doubler Output, VOUT > VIN x 2 x 0.95
VIN=3.6V, External Components=CIN, SENSE=0V, VOUT=VIN
MIN.
4.875
Ta=25OC TYP. MAX. UNITS 5.0
5.125
-100 1.8 1 255 3 300 20 5 1.5 99 78 40 69
100 5.5 6 2.0 345 40
V mV V mA A kHz mA mA % % % % V V A
CE=0V
External Component=CIN, SENSE=0V, VOUT open
Doubler Output Doubler Output Regulation Output Doubler Output Doubler Output Regulation Output
IOUT=10mA
IOUT=10mA IOUT=1mA IOUT=80mA
95 73 64 1.5 -2.0
CE / 'H' Level Voltage CE / 'L' Level Voltage CE / Input Current
VIN=5.5V, SENSE=0V, External Components=CIN
0.25 2.0
Test Conditions : Unless otherwise stated, Typical Application Circuit, VIN=3.6V, GND=0V, CE=VIN, No Load, SENSE=VIN(Regulation Output)
XC9802B503KR VOUT=5.0V PARAMETER Output Voltage Load Regulation Operating Voltage Range Supply Current Stand-by Current Oscillator Frequency Switching Pulse Frequency Output Impedence Input Current Voltage Converting Efficiency Power Converting Efficiency
SYMBOL VOUT VOUT VIN IDD ISTB FOSC FOSC2 ROUT IIN IIN2 VEFFI EFFI EFFI2 EFFI3 VCEH VCEL ICE
CONDITIONS IOUT=1mA Regulation Output 1mA IOUT 80mA Regulation Output Doubler Output, VOUT > VIN x 2 x 0.95
VIN=3.6V, External Components=CIN, SENSE=0V, VOUT=VIN
MIN.
4.875
Ta=25OC TYP. MAX. UNITS 5.0
5.125
-100 1.8 1 255 3 300 10 20 5 0.08 99 78 59 69
100 5.5 6 2.0 345 40
V mV V mA A kHz kHz mA mA % % % % V V A
CE=0V
External Component : CIN, SENSE=0V, VOUT open
Regulation Output Doubler Output Doubler Output Regulation Output Doubler Output Doubler Output Regulation Output
IOUT=1mA IOUT=10mA
IOUT=10mA IOUT=1mA IOUT=80mA
98 73 64 1.5 -2.0
CE / 'H' Level Voltage CE / 'L' Level Voltage CE / Input Current
VIN=5.5V, SENSE=0V, External Components=CIN
0.25 2.0
Test Conditions : Unless otherwise stated, Typical Application Circuit, VIN=3.6V, GND=0V, CE=VIN, No Load, SENSE=VIN(Regulation Output)
3
XC9801/02 Series
Electrical Characteristics
XC9801B333KR VOUT=3.3V PARAMETER Output Voltage Load Regulation Operating Voltage Range Supply Current Stand-by Current Oscillator Frequency Output Impedence Input Current Voltage Converting Efficiency Power Converting Efficiency SYMBOL VOUT VOUT VIN IDD ISTB FOSC ROUT IIN IIN2 VEFFI EFFI EFFI2 EFFI3 VCEH VCEL ICE
Step-Up Charge Pump ICs
CONDITIONS IOUT=1mA Regulation Output 1mA IOUT 32mA Regulation Output Doubler Output, VOUT > VIN x 2 x 0.95
VIN=3.6V, External Components=CIN, SENSE=0V, VOUT=VIN
MIN.
3.218
Ta=25OC TYP. MAX. UNITS 3.3
3.383
-66 1.8 1 255 3 300 20 5 1.5 99 78 40 69
66 5.5 6 2.0 345 40
V mV V mA A kHz mA mA % % % % V V A
CE=0V
External Component=CIN, SENSE=0V, VOUT open
Doubler Output Doubler Output Regulation Output Doubler Output Doubler Output Regulation Output
IOUT=10mA
IOUT=10mA IOUT=1mA IOUT=80mA
95 73 64 1.5 -2.0
CE / 'H' Level Voltage CE / 'L' Level Voltage CE / Input Current
VIN=5.5V, SENSE=0V, External Components=CIN
0.25 2.0
Test Conditions : Unless otherwise stated, Typical Application Circuit, VIN=3.6V, GND=0V, CE=VIN, No Load, SENSE=VIN(Regulation Output)
XC9802B333KR VOUT=3.3V PARAMETER Output Voltage Load Regulation Operating Voltage Range Supply Current Stand-by Current Oscillator Frequency Switching Pulse Frequency Output Impedence Input Current Voltage Converting Efficiency Power Converting Efficiency
SYMBOL VOUT VOUT VIN IDD ISTB FOSC FOSC2 ROUT IIN IIN2 VEFFI EFFI EFFI2 EFFI3 VCEH VCEL ICE
CONDITIONS IOUT=1mA Regulation Output 1mA IOUT 32mA Regulation Output Doubler Output, VOUT > VIN x 2 x 0.95
VIN=3.6V, External Components=CIN, SENSE=0V, VOUT=VIN
MIN.
3.218
Ta=25OC TYP. MAX. UNITS 3.3
3.383
-66 1.8 1 255 3 300 10 20 5 0.08 99 78 63 69
66 5.5 6 2.0 345 40
V mV V mA A kHz kHz mA mA % % % % V V A
CE=0V
External Component : CIN, SENSE=0V, VOUT open
Regulation Output Doubler Output Doubler Output Regulation Output Doubler Output Doubler Output Regulation Output
IOUT=1mA IOUT=10mA
IOUT=10mA IOUT=1mA IOUT=80mA
98 73 64 1.5 -2.0
CE / 'H' Level Voltage CE / 'L' Level Voltage CE / Input Current
VIN=5.5V, SENSE=0V, External Components=CIN
0.25 2.0
Test Conditions : Unless otherwise stated, Typical Application Circuit, VIN=3.6V, GND=0V, CE=VIN, No Load, SENSE=VIN(Regulation Output)
4
XC9801/02 Series
Typical Application Circuits
Regulation Output
Step-Up Charge Pump ICs
SENSE CE VIN GND
VOUT
VOUT C1+ C1PGND
C1 RL C2
VIN
CIN
Doubler Output
SENSE CE VIN GND
VOUT
VOUT C1+
C1
C1PGND
RL C2
VIN
CIN
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
Electrical Characteristics (3.3V)
(1) Output Voltage vs. Output Current
XC9801B333KR(300kHz,3.3V)
CIN=1F(ceramic) C1=0.47F,C2=4.7F(ceramic)
Step-Up Charge Pump ICs
XC9802B333KR(300kHz,3.3V) 4.0 Output Voltage VOUT(V) 3.8 3.6 3.4 3.2 3.0 2.8 2.6 2.4 0 30 60 90 120 Output Current IOUT(mA) 150
VIN=1.98V VIN=2.376V VIN=2.76V CIN=1F(ceramic) C1=0.47F,C2=4.7F(ceramic)
4.0 Output Voltage VOUT(V) 3.8 3.6 3.4 3.2 3.0 2.8 2.6 2.4 0 30 60 90 120 150 Output Current IOUT(mA)
VIN=1.98V VIN=2.376V VIN=2.76V
(2) Efficiency vs. Output Current
XC9801B333KR(300kHz,3.3V) 100 Efficiency EFFI(%) 80 60
VIN=2.376V CIN=1F(ceramic) C1=0.47F,C2=4.7F(ceramic) VIN=1.98V
XC9802B333KR(300kHz,3.3V) 100 Efficiency EFFI(%) 80 60 40 20 0
VIN=2.376V VIN=2.76V CIN=1F(ceramic) C1=0.47F,C2=4.7F(ceramic) VIN=1.98V
40 20 0 0.01
VIN=2.76V
0.1 1 10 100 Output Current IOUT(mA)
1000
0.01
0.1 1 10 100 Output Current IOUT(mA)
1000
(3) Output Current vs. Ripple Voltage
XC9801B333KR(300kHz,3.3V) XC9802B333KR(300kHz,3.3V) 100 Ripple Voltage Vr(mV) 80 60 40 20 0 0.01
VIN=2.76V VIN=1.98V VIN=2.376V
100
Ripple Voltage Vr(mV)
CIN=1F(ceramic) C1=0.47F,C2=4.7F(ceramic)
CIN=1F(ceramic) C1=0.47F,C2=4.7F(ceramic)
80
VIN=2.76V
60 40 20
VIN=1.98V
VIN=2.376V
0 0.01
0.1 1 10 100 Output Current IOUT(mA)
1000
0.1
1
10
100
1000
Output Current IOUT(mA)
6
XC9801/02 Series
Electrical Characteristics (5.0V)
(1) Output Voltage vs. Output Current
XC9801B503KR(300kHz, 5.0V)
Step-Up Charge Pump ICs
XC9802B503KR(300kHz,5.0V) 5.6 Output Voltage VOUT(V) 5.4 5.2 5.0 4.8 4.6 4.4 4.2 4.0 0 50 100 150 200
VIN=4V VIN=3V VIN=3.6V CIN=1F(ceramic) C1=0.47F,C2=4.7F(ceramic)
5.6 Output Voltage VOUT(V) 5.4 5.2 5.0 4.8 4.6 4.4 4.2 4.0 0
CIN=1F(ceramic) C1=0.47F,C2=4.7F(ceramic)
VIN=4V VIN=3V VIN=3.6V
50 100 150 Output Current IOUT(mA)
200
Output Current IOUT(mA)
(2) Efficiency vs. Output Current
XC9801B503KR(300kHz,5.0V)
100 Efficiency EFFI(%) 80 60
VIN=3.6V CIN=1F(ceramic) C1=0.47F,C2=4.7F(ceramic) VIN=3V
XC9802B503KR(300kHz,5.0V) 100
CIN=1F(ceramic) C1=0.47F, C2=4.7F(ceramic) VIN=3V
Efficiency EFFI(%)
80 60 40 20 0
VIN=3.6V VIN=4V
40 20 0 0.01
VIN=4V
0.1 1 10 100 Output Current IOUT(mA)
1000
0.01
0.1 1 10 100 Output Current IOUT(mA)
1000
(3) Output Voltage vs. Ripple Voltage
XC9801B503KR(300kHz,5.0V) 100 Ripple Voltage Vr(mV) 80
VIN=4V CIN=1F(ceramic) C1=0.47F, C2=4.7F(ceramic)
XC9802B503KR(300kHz,5.0V) 80 Ripple Voltage Vr(mV) 60 40 20 0 0.01
CIN=1F(ceramic) C1=0.47F, C2=4.7F(ceramic)
VIN=3VVIN=3.6V VIN=4V
60 40 20 0 0.01
VIN=3.6V
VIN-3V
0.1 1 10 100 1000 Output Current IOUT(mA)
0.1 1 10 100 Output Current IOUT(mA)
1000
7
XC9801/02 Series
Electrical Characteristics (Doubler)
(1) Output Voltage vs. Output Current
XC9801B503KR (300kHz,SENSE=0V Doubler)
CIN=1F(ceramic) C1=0.47F,C2=4.7F(ceramic)
Step-Up Charge Pump ICs
8.0 Output Voltage VOUT(V) 7.0
VIN=4V
6.0 5.0 4.0 0 20
VIN=3.6V
VIN=3V
40
60
80
100
Output Current IOUT(mA)
(2) Efficiency vs. Output Current
XC9801B503KR (300kHz,SENSE=0V Doubler)
CIN=1F(ceramic) C1=0.47F, C2=4.7F(ceramic) VIN=3V
100 Efficiency EFFI (%) 80 60 40 20 0 0.1
VIN=3.6V VIN=4V
1 10 Output Current IOUT(mA)
100
(3) Ripple Voltage vs. Output Current
XC9801B503KR (300kHz, SENSE=0V, Doubler) 100 Ripple Voltage Vr (mV) 80 60
VIN=4V CIN=1F(ceramic) C1=0.47F, C2=4.7F(ceramic)
40 20 0 0.1 1 10 100 1000 Output Current IOUT(mA)
VIN=3.6V VIN=3V
8
XC9801/02 Series
Packaging Information (Dimensions : mm) MSOP-8A : (1,000 pcs./reel)
Step-Up Charge Pump ICs
0. 15
+0. 08 - 0. 02
3. 00 +0. 10
3. 00 + 0. 10
4. 90 +0. 10
O 0 ~6
- 0. 10
+0. 11
0. 86
0. 30
+0. 08 - 0. 02
( 0. 65)
USP-8 : (1,000 pcs./reel)
2.70
0 5 85 .
2. 50
0.375 0.25 0.15
1.50
0.65
2.30 0.30
0 .10
0. 00~0. 20
9
1. 02
- 0. 21
+0. 20
0. 53 + 0. 13
XC9801/02 Series
Recommended Pattern Layout MSOP-8A
Step-Up Charge Pump ICs
(Dimensions : mm)
0. 325
3
0. 85
0. 65
USP-8
2 .7 0.35 0.35 0.35 0.35 .
8
. 0 45
7
6
5
2 .9
0 .45
1
0.425
2
3
4
0.65
0.25 0.65 0.65
10
1 .5
3
4. 45

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