Mar. 20, 2003 Ver 3
Applications
2ch DC/DC Controller (Step-up + Inverting)
Power Supplies for LCD
Input Voltage Range 0.9V ~ 10.0V
PDAs
Output Voltage Externally Set-Up
Palm Top Computers
Oscillation Frequency 180kHz (15%)
Portable Audio Systems
Max Duty Ratio 80% (TYP)
Various Multi-function Power Supplies
PWM, PWM/PFM Switching Control
MSOP-10 Package
Features
2ch. DC/DC Controllers
Output 1: Step-up DC/DC Controller
Output 2: Inverting DC/DC Controller
Power Supply Voltage Range 2.0V ~ 10V
Output Voltage Range
General Description
Output 1:
1.5V ~ 30.0V
(Step-up DC/DC Controller)
Output 2:
-30V ~ 0V
(Inverting DC/DC Controller)
Oscillation Frequency
180kHz 15%
300kHz & 500kHz are available as custom
Output Current
Output 1 :
Output 2 :
Soft-Start Internally Set-Up (Output 1)
Stand-By Current
3.0
A (MAX)
Typical Perfomance Characteristics
Typical Application
( XC9504B092A Input: 3.3V, Output
1
: 15V, Output
2
: -7V )
more than 20mA (VIN=3.3V,VOUT=15V)
more than - 20mA (VIN=3.3V,VOUT=- 7V)
The XC9504 series are PWM control, PWM/PFM switching, 2
channel (step-up and inverting) DC/DC controller ICs.
With 0.9V of standard voltage supply internal, and using
externally connected components, the output 1 voltage (step-up
DC/DC controller) can be set freely within a range of 1.5V ~
30V. Since output 2 (inverting DC/DC controller) has a built-in
0.9V reference voltage (accuracy
2), a negative voltage can be
set with the external components.
With a 180kHz frequency, the size of the external components
can be reduced. Switching frequencies of 300kHz and 500kHz
are also available as custom-designed products.
The control of the XC9504 series can be switched between
PWM control and PWM/PFM automatic switching control using
external signals. Control switches from PWM to PFM during
light loads when automatic switching is selected and the series
is highly efficient from light loads through to large output
currents. Noise is easily reduced with PWM control since the
frequency is fixed.
The series gives freedom of control selection so that control
suited to the application can be selected.
Soft-start time is internally set to 10msec (output 1)
which offers protection against rush currents and voltage
overshoot when the power is switched on .
XC9504 Series
2ch. Step-up / Inverting DC/DC Controller ICs
Can be set freely with 0.9V(
2.0%) of reference voltage
supply & external components
Can be set freely with 0.9V(
2.0%) of reference voltage &
external components
L1:22uH
D412F
Tr2:Pch MOSFET
XP152A12C0
CIN=47uF
Tr1:Nch MOSFET
XP151A12A2
L2:22uH
D412F
VPWM1
VPWM2
1 EXT1
2 VDD
3 FB1
FB2 8
GND 9
EXT2/ 10
4 PWM1 PWM2 7
5 EN1
EN2 6
VEN2
VEN1
CDD=1uF
SD2
:MA2Q735
RFB11
:470k
RFB12 :30k
CFB1
:5pF
VOUT1=15V
IOUT1=~20mA
SD1
:MA2Q735
CL1
10uF
RFB21
24k
CFB21
=0.1uF
VOUT2=7V
IOUT2=~20mA
CL2
:10uF
RFB22
:43k
VIN=3.3V
14.4
14.6
14.8
15.0
15.2
15.4
0
10
20
30
40
50
60
Output Current 1,2 I
OUT1,2
(mA)
Ou
tp
u
t
V
o
l
t
a
g
e
1
V
OU
T
1
(V)
-7.8
-7.7
-7.6
-7.5
-7.4
-7.3
O
u
t
put
V
o
lt
age 2 V
OU
T
2
(V)
VOUT2
VOUT1
XC9504B092A
(180kHz, Output 1 = 15V, Output 2 = - 7.5V)
L1=22
H (CDRH4D18C), CL1=- 10
F (ceramic), SD1: CRS02, Tr1:XP151A12A2M
L2=22
H (CDRH4D18C), CL2= 10
F (ceramic), SD1: CRS02, Tr2:XP152A12C0M
1
Pin Configuration
Pin Assignment
Ordering Information
XC9504
123456
FB Voltage
0.9V
Embossed Tape
Embossed Tape
10
EXT2/
Channel 2 : External Transistor Drive Pin <Connected to Pch Power MOSFET Gate>
9
GND
Ground
PIN NUMBER
PIN NAME
FUNCTIONS
7
PWM2
Channel 2 : PWM/PFM Switching Pin <Control Output 2. PWM control when connected to
VDD, PWM / PFM auto switching when connected to Ground.>
8
FB2
Channel 2 : Output Voltage Monitor Feedback Pin <Threshold value : 0.9V. Output voltage
can be set freely by connecting split resistors between VOUT2 and Ground.>
5
EN1
Channel 1 : Enable Pin <Connected to Ground when Output 1 is in stand-by mode.
Connected to VDD when Output 1 is active. EXT1 is low when in stand-by mode.>
6
EN2
Channel 2 : Enable Pin <Connected to Ground when Output 2 is in stand-by mode.
Connected to VDD when Output 2 is active. EXT2/ is high when in stand-by mode.>
3
FB1
Channel 1 : Output Voltage Monitor Feedback Pin <Threshold value : 0.9V. Output voltage
can be set freely by connecting split resistors between VOUT1 and Ground.>
4
PWM1
Channel 1 : PWM/PFM Switching Pin <Control Output 1. PWM control when connected to
V
DD
, PWM / PFM auto switching when connected to Ground. >
1
EXT 1
Channel 1: External Transistor Drive Pin <Connected to Nch Power MOSFET Gate>
2
V
DD
Supply Voltage
4
5
3
180kHz
300kHz (custom)
500kHz (custom)
DESIGNATOR SYMBOL
DESCRIPTION
2
3
L
Reverse Feed
5
R
Package
MSOP-10
Standard Feed
6
A
9
Oscillation Frequency
2
0
1
B
Standard (10 Pin)
XC9504 Series
2ch. Step-up / Inverting DC/DC Controller ICs
1 EXT1
2 VDD
3 FB1
FB2 8
GND 9
EXT2 10
4 PWM1
PWM2 7
5 CE1
CE2 6
MSOP-10
(TOP VIEW)
EN1
EN2
2
Block Diagram
Absolute Maximum Ratings
XC9504 Series
2ch. Step-up / Inverting DC/DC Controller ICs
Ta=25
O
C
Tstg
- 55 ~ + 125
O
C
Pd
150
mW
mA
- 0.3 ~ V
DD
+ 0.3
- 0.3 ~ 12
V
Power Dissipation
IEXT
100
EXT1, 2 Pin Current
EXT1, 2 Pin Voltage
VEXT
Storage Temperature
Topr
- 40 ~ + 85
O
C
Operating Ambient Temperature
V
PWM1,2 Pin Voltage
VEN
- 0.3 ~ 12
V
EN1, 2 Pin Voltage
VPWM
VFB
- 0.3 ~ 12
V
FB1, 2 Pin Voltage
VDD
- 0.3 ~ 12
V
V
DD
Pin Voltage
SYMBOL
RATINGS
UNITS
PARAMETER
PWM1
+
-
+
-
FB1
VDD
EXT1
+
-
PWM/PFM
Controller1
Vref2=0.9V,
CE2
-
+
PWM/PFM
Controller2
FB2
GND
EXT2/
OSC
Generator
Ramp Wave
Generator1
Ramp Wave
Generator2
Error Amp2
Error Amp1
PWM
Comparator2
PWM
Comparator1
CE1
PWM2
CE2
Vref1=0.9V
with Soft Start1,
CE1
CE1 to
internal circuit
CE2 to
internal circuit
EN1
EN1
EN2
EN
EN1
EN
3
Electrical Characteristics
XC9504B092A
Common Characteristics
V
DD
2.0V, I
OUT
=1mA
VDD
VOUT
V
IN
0.9V, I
OUT
=1mA
(note 2)
VDD=VOUT
EN2=3.0V, EN1=0V, FB2=1.2V
FB1=1.2V, FB2=1.2V
Unless otherwise stated, V
DD
=3.0V, PWM1, 2=3.0V, EN1, 2 = 3.0V
Output 1 Characteristics
Step-up Controller
Using Tr: 2SD1628,
Unless otherwise stated, V
DD
=EN1=PWM1=3.0V, EN2=PWM2=GND, EXT2=OPEN, FB2=OPEN, V
IN
=1.8V
Output 2 Characteristics
Inverting DC/DC Controller
I
OUT
2=1.0mA, RFB11=200k
, RFB12=75k
RFB21=17.5k
, RFB22=10k
, EN1=PWM1=3.0V
Unless otherwise stated, V
DD
=EN2=PWM2=3.0V, PWM1=EN1=GND, EXT1=OPEN, FB1=OPEN, V
IN
=3.0V
3
Minimum Duty Ratio2
MINDTY3 Same as I
DD
2
-
-
0
%
3
-
Minimum Duty Ratio1
MAXDTY2 Same as I
DD
2
-
-
0
%
V
12
VST1-2
-
2.0
V
OUT1
V
OUT2
V
OUT1
V
OUT2
-
2.0
-
TEST CIRCUIT
PARAMETER
SYMBOL
CONDITIONS
MIN.
V
TYP.
MAX.
UNITS
2.0
-
10.0
2
-
Output Voltage Range
(note 3)
V
OUTSET
0.9
-
-
0.0
V
-
10.0
Supply Current 1
I
DD1
FB=0V, FB2=1.2V
-
90
190
A
3
EN1=3.0V, EN2=0, FB1=0V
-
A
3
Supply Current 1-1
I
DD1-1
60
120
FB1=0V, FB2=0V
-
Supply Current 1-2
I
DD1-2
80
150
A
3
Supply Current 2
I
DD2
FB1=1.2V, FB2=0V
-
70
132
A
3
Stand-by Current
I
STB
Same as I
DD1
, EN1=EN2=0V
-
1
3.0
A
3
Oscillation Frequency
FOSC
Same as I
DD1
153
180
207
kHz
3
EN1, 2 "High" Voltage
V
ENH
FB1=0V, FB2=3.0V
0.65
-
-
V
3
EN1, 2 "Low" Voltage
V
ENL
FB1=0V, FB2=3.0V
-
-
0.20
V
3
EN1, 2 "High" Current
I
ENH
FB1=3.0V, FB2=0V
-
-
0.50
A
3
EN1, 2 "Low" Current
I
ENL
EN1, 2=0V, FB1=3.0V, FB2=0V
-
-
-0.50
A
3
PWM1, 2 "High" Current
I
PWMH
FB1=3.0V, FB2=0V, PWM1, 2=3.0V
-
-
0.50
A
3
PWM1, 2 "Low" Current
I
PWML
FB1=3.0V, FB2=0V, PWM1, 2=0V
-
-
-0.50
A
3
FB1, 2 "High" Current
I
FBH
FB1=3.0V, FB2=0.8V
-
-
0.50
A
3
FB1, 2 "Low" Current
V
FBL
FB1=1.0V, FB2=0V
-
-
-0.50
A
3
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
TEST CIRCUIT
FB1 Voltage
VFB1
V
DD
=3.0V, V
IN
=1.5V, I
OUT1
=10mA
0.882 0.900 0.918
V
4
Operation Start-up
Voltage1
(note 2)
VST1-1
-
-
V
DD
V
OUT
1 : I
OUT
1=10mA
-
-
0.9
V
2
I
OUT
=1.0mA, RFB11=200k
, RFB12=75k
2.0
V
1
Oscillation Start-up Voltage1
VST2-1
FB1=0V
-
-
0.8
V
3
Maximum Duty Ratio1
MINDTY1 Same as I
DD
1
75
80
87
%
3
PFM Duty Ratio1
PFMDTY1 No Load, VPWM1=0V
22
30
38
%
5
Efficiency1
EFFI1
I
OUT1
= 130mA, Nch MOSFET: XP161A1355P
-
85
-
%
5
Soft-Start Time1
T
SS1
VOUT1
0.95V, EN1=0V
0.65V
5.0
10.0
20.0
msec
5
EXT1 "High" ON Resistance R
EXTBH1
FB1=0V, EXT1=V
DD
-0.4V
-
28
47
6
EXT1 "Low" ON Resistance
R
EXTBL1
EN1=FB1=1.2V, EXT1=0.4V
-
22
30
6
PWM1 "High" Voltage
V
PWMH1
No Load
0.65
-
-
V
5
PWM1 "Low" Voltage
V
PWML1
No Load
-
-
0.20
V
5
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
TEST CIRCUIT
-
-
FB2 Voltage
VFB2
V
DD
=3.0V
0.882
Operation Start-up
Voltage2
3
Maximum Duty Ratio2
MAXDTY2 Same as I
DD
1
75
80
87
%
3
FB2=1.2V
30
38
%
Oscillation Start-up Voltage2
PFM Duty Ratio2
PFMDTY2 No Load, V
PWM2
=0V
2.0
V
VST2-2
7
Efficiency2 (Note 4)
EFFI2
I
OUT2
= -150mA, Pch MOSFET: XP162A12A6P
-
76
-
%
7
22
EXT2 "High" ON Resistance R
EXTBH2
EN2=FB2= 0V, EXT2=V
DD
-0.4V
-
28
47
6
30
6
EXT2 "Low" ON Resistance
R
EXTBL2
FB2=3.0V, EXT2=0.4V
-
22
7
PWM2 "High" Voltage
V
PWMH2
No Load
0.65
-
-
V
7
PWM2 "Low" Voltage
V
PWML2
No Load
-
-
0.20
V
XC9504 Series
2ch. Step-up / Inverting DC/DC Controller ICs
Ta=25
O
C
1
-
0.0
V
Supply Voltage
(note 1)
V
DD
Ta=25
O
C
Ta=25
O
C
0.900 0.918
V
3
4
Electrical Characteristics
XC9504B093A
Common Characteristics
V
DD
2.0V, I
OUT
=1mA
VDD
VOUT
V
IN
0.9V, I
OUT
=1mA
(note 2)
VDD=VOUT
EN2=3.0V, EN1=0V, FB2=1.2V
FB1=1.2V, FB2=1.2V
Unless otherwise stated, V
DD
=3.0V, PWM1, 2=3.0V, EN1, 2 = 3.0V
Output 1 Characteristics
Step-up Controller
Using Tr: 2SD1628,
Unless otherwise stated, V
DD
=EN1=PWM1=3.0V, EN2=PWM2=GND, EXT2=OPEN, FB2=OPEN, V
IN
=1.8V
Output 2 Characteristics
Inverting DC/DC Controller
I
OUT
2=1.0mA, RFB11=200k
, RFB12=75k
RFB21=17.5k
, RFB22=10k
, EN1=PWM1=3.0V
Unless otherwise stated, V
DD
=EN2=PWM2=3.0V, PWM1=EN1=GND, EXT1=OPEN, FB1=OPEN, V
IN
=3.0V
-
0.20
V
7
PWM2 "Low" Voltage
V
PWML2
No Load
-
-
-
V
7
PWM2 "High" Voltage
V
PWMH2
No Load
0.65
22
30
6
EXT2 "Low" ON Resistance
R
EXTBL2
FB2=3.0V, EXT2=0.4V
-
28
47
6
EXT2 "High" ON Resistance R
EXTBH2
EN2=FB2= 0V, EXT2=V
DD
-0.4V
-
75
-
%
7
Efficiency2 (Note 4)
EFFI2
I
OUT2
= -150mA, Pch MOSFET: XP162A12A6P
-
30
38
%
7
PFM Duty Ratio2
PFMDTY2 No Load, V
PWM2
=0V
22
-
0
%
3
Minimum Duty Ratio2
MINDTY3 Same as I
DD
2
-
3
Maximum Duty Ratio2
MAXDTY2 Same as I
DD
1
75
80
87
%
3
2.0
V
12
Oscillation Start-up Voltage2
VST2-2
FB2=1.2V
-
-
2.0
V
Operation Start-up
Voltage2
VST1-2
-
-
0.900 0.918
V
3
FB2 Voltage
VFB2
V
DD
=3.0V
0.882
Ta=25
O
C
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
TEST CIRCUIT
-
0.20
V
5
PWM1 "Low" Voltage
V
PWML1
No Load
-
-
-
V
5
PWM1 "High" Voltage
V
PWMH1
No Load
0.65
22
30
6
EXT1 "Low" ON Resistance
R
EXTBL1
EN1=FB1=1.2V, EXT1=0.4V
-
28
47
6
EXT1 "High" ON Resistance R
EXTBH1
FB1=0V, EXT1=V
DD
-0.4V
-
10.0
20.0
msec
5
Soft-Start Time1
T
SS1
VOUT1
0.95V, EN1=0V
0.65V
5.0
85
-
%
5
Efficiency1
EFFI1
I
OUT1
= 130mA, Nch MOSFET: XP161A1355P
-
30
38
%
5
PFM Duty Ratio1
PFMDTY1 No Load, VPWM1=0V
22
-
0
%
3
Minimum Duty Ratio1
MAXDTY2 Same as I
DD
2
-
3
Maximum Duty Ratio1
MINDTY1 Same as I
DD
1
75
80
87
%
3
2.0
V
1
Oscillation Start-up Voltage1
VST2-1
FB1=0V
-
-
0.8
V
0.9
V
2
I
OUT
=1.0mA, RFB11=200k
, RFB12=75k
Operation Start-up
Voltage1
(note 2)
VST1-1
-
-
V
DD
V
OUT
1 : I
OUT
1=10mA
-
-
0.900 0.918
V
4
FB1 Voltage
VFB1
V
DD
=3.0V, V
IN
=1.5V, I
OUT1
=10mA
0.882
Ta=25
O
C
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
TEST CIRCUIT
-
-0.50
A
3
FB1, 2 "Low" Current
V
FBL
FB1=1.0V, FB2=0V
-
-
0.50
A
3
FB1, 2 "High" Current
I
FBH
FB1=3.0V, FB2=0.8V
-
-
-0.50
A
3
PWM1, 2 "Low" Current
I
PWML
FB1=3.0V, FB2=0V, PWM1, 2=0V
-
-
0.50
A
3
PWM1, 2 "High" Current
I
PWMH
FB1=3.0V, FB2=0V, PWM1, 2=3.0V
-
-
-0.50
A
3
EN1, 2 "Low" Current
I
ENL
EN1, 2=0V, FB1=3.0V, FB2=0V
-
-
0.50
A
3
EN1, 2 "High" Current
I
ENH
FB1=3.0V, FB2=0V
-
-
0.20
V
3
EN1, 2 "Low" Voltage
V
ENL
FB1=0V, FB2=3.0V
-
-
-
V
3
EN1, 2 "High" Voltage
V
ENH
FB1=0V, FB2=3.0V
0.65
300
345
kHz
3
Oscillation Frequency
FOSC
Same as I
DD1
255
1.0
3.0
A
3
Stand-by Current
I
STB
Same as I
DD1
, EN1=EN2=0V
-
80
160
A
3
Supply Current 2
I
DD2
FB1=1.2V, FB2=0V
-
90
200
A
3
Supply Current 1-2
I
DD1-2
FB1=0V, FB2=0V
-
80
150
A
3
Supply Current 1-1
I
DD1-1
EN1=3.0V, EN2=0, FB1=0V
-
110
250
A
3
Supply Current 1
I
DD1
FB=0V, FB2=1.2V
-
-
10.0
V
2
-
0.0
-
-
V
1
-
0.0
Output Voltage Range
(note 3)
V
OUTSET
V
OUT1
0.9
V
OUT2
-
V
OUT1
2.0
V
OUT2
-
TEST CIRCUIT
Supply Voltage
(note 1)
V
DD
2.0
-
10.0
V
XC9504 Series
2ch. Step-up / Inverting DC/DC Controller ICs
Ta=25
O
C
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
5
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