04S_01XC9101/9102新規 02.09.12 14:37 ページ 387
Series
PWM Controlled Step-Up DC/DC Controllers
NInput
Voltage Range : 2.5V ~ 20V
NOutput
Voltage Range
: 2.5V ~ 16V
(Fixed Voltage Type)
: 30V + (Adjustable Type)
NOscillation
Frequency Range
: 100kHz ~ 600kHz
NOutput
Current
: up to 1.5A
NCeramic
Capacitor Compatible
NMSOP-8A
Package
■Applications
GMobile,
Cordless phones
GPalm
top computers, PDAs
GPortable
games
GCameras,
Digital cameras
GLaptops
4
■Features
GStable
Operations via Current & Voltage Multiple Feedback
GUnlimited
Options for Peripheral Selection
GCurrent
Protection Circuit
GCeramic
Capacitor Compatible
■General Description
The XC9101 series are step-up multiple current and voltage feedback
DC/DC controller ICs. Current sense, clock frequencies and amp
feedback gain can all be externally regulated.
A stable power supply is possible with output currents of up to 1.5A.
With output voltage fixed internally, V
OUT
is selectable in 0.1V steps
within a 2.5V - 16.0V range (± 2.5%).
For output voltages outside this range, we recommend the FB version
which has a 0.9V internal reference voltage. Using this version, the
required output voltage can be set-up using 2 external resistors.
Switching frequencies can also be set-up externally within a range of
100~600 kHz and therefore frequencies suited to your particular
application can be selected.
With the current sense function, peak currents (which flow through
the driver transistor and the coil) can be controlled. Soft-start time can
be adjusted using external resistor and capacitor.
During shutdown (CE pin =L), consumption current can be reduced to
as little as 0.5µA (TYP.) or less.
■Typical Application Circuit
22μH
XP161A1355PR
1 EXT
2 Isen
50mΩ
150kΩ
3 V
IN
220μF 0.1
μF
+10μF
Vss 8
V
OUT
7
GAIN 6
94μF
22KΩ
470pF
180pF
U3FWJ44N
■Typical Performance
Characteristic
V
OUT
:5.0V FOSC:180kHz
100
Efficiency : EFFI (%)
80
4.2V
3.3V
4 CE/SS CLK 5
1μF
60
V
IN
=2.5V
40
1
10
100
1000
Output Current : I
OUT
(mA)
387
04S_01XC9101/9102新規 02.09.12 14:38 ページ 388
XC9101
Series
■Pin Configuration
EXT
Isen
V
IN
CE／SS
■Pin Assignment
PIN NUMBER
1
2
3
4
5
6
7
8
PIN NAME
EXT
Isen
V
IN
CE／SS
CLK
CC／GAIN
V
OUT
／FB
V
SS
FUNCTION
Driver
Current Sense
Power Input
CE/Soft Start
Clock Input
Phase Compensation
Voltage Sense
Ground
1
2
3
4
8
7
6
5
V
SS
V
OUT
／FB
CC／GAIN
CLK
MSOP-8A
(TOP VIEW)
4
■Product Classification
GOrdering
Information
ＸＣ９１０１
qwerty
DISIGNATOR SYMBOL
C
q
D
V
OUT
/FB
V
OUT
(Fixed Voltage Type)
FB
Soft-start
Soft-start externally set-up
Soft-start externally set-up
Output Voltage : For voltages above 10V, see below :
we
Number
10=A, 11=B, 12=C, 13=D, 14=E, 15=F, 16=H
e.g. V
OUT
=2.3V→w=2,
e=3
FB products→w=0,
e=9
fixed
V
OUT
=13.5V→w=D,
e=5
r
t
y
A
K
R
L
Adjustable Frequency
MSOP-8A
Embossed tape. Standard Feed
Embossed tape. Reverse Feed
The standard output voltages of the XC9101C series are 2.5V, 3.3V, and 5.0V.
Voltages other than those listed are semi-custom.
■Packaging Information
0.15
+0.08
-0.02
0.53±0.13
0∼
6ﾟ
GMSOP-8A
3.00±0.10
3.00±0.10
0.30
-0.02
+0.08
(0.65)
388
0.00∼0.20
0.86
-0.10
+0.20
1.02
-0.21
+0.11
4.90±0.10
04S_01XC9101/9102新規 02.09.12 14:38 ページ 389
XC9101
Series
■Marking
q
Represents the product series
DESIGNATOR
4
PRODUCT NAME
XC9101***AK*
MSOP-8A
① ② ③
w
Represents product type, DC/DC converter
DESIGNATOR
C
D
TYPE
V
OUT
, CE PIN
FB, CE PIN
PRODUCT NAME
XC9101C**AK*
XC9101D09AK*
④ ⑤ ⑥
e
Represents integral number of output voltage, or FB type
DESIGNATOR VOLTAGE（V）
2
3
4
5
6
7
8
9
0
2. X
3. X
4. X
5. X
6. X
7. X
8. X
9. X
FB products
PRODUCT NAME
XC9101C2*AK*
XC9101C3*AK*
XC9101C4*AK*
XC9101C5*AK*
XC9101C6*AK*
XC9101C7*AK*
XC9101C8*AK*
XC9101C9*AK*
XC9101D09AK*
DESIGNATOR VOLTAGE（V）
A
B
C
D
E
F
H
10. X
11. X
12. X
13. X
14. X
15. X
16. X
PRODUCT NAME
XC9101CA*AK*
XC9101CB*AK*
XC9101CC*AK*
XC9101CD*AK*
XC9101CE*AK*
XC9101CF*AK*
XC9101CH*AK*
4
r
Represents decimal number of output voltage
DESIGNATOR
0
3
9
VOLTAGE（V）
X. 0
X. 3
FB products
PRODUCT NAME
XC9101C*0AK*
XC9101C*3AK*
XC9101D09AK*
t
Represents oscillation frequency's control type
DESIGNATOR
A
TYPE
Adjustable Frequency
PRODUCT NAME
XC9101***AK*
389
04S_01XC9101/9102新規 02.09.12 14:38 ページ 390
XC9101
Series
■Block Diagram
EXT timming
controll
logic
Current
Limit
Protection
V
SS
EXT
V
OUT
R1
ISEN
Limitter comp.
PWM
MIX
CC/GAIN
Verr
R2
V
IN
4
CE/SS
Internal
Voltage
Regulator
2.0V
to internal
circuit
Sampling
CE,UVLO
to internal
circuit
Ierr
Ramp Wave,
Internal CLK
generator
Chip Enable,
Soft Start up,
U.V.L.O.
CLK
Vref generator
0.9V
■Absolute Maximum Ratings
PARAMETER
EXT Pin Voltage
Isen Pin Voltage
V
IN
Pin Voltage
CE/SS Pin Voltage
CLK Pin Voltage
CC/GAIN Pin Voltage
V
OUT
/FB Pin Voltage
EXT Pin Current
Continuous Total Power Dissipation
Operating Ambient Temperature
Storage Temperature
SYMBOL
V
EXT
VIsen
V
IN
V
CE
V
CLK
V
CC
V
OUT
/FB
I
EXT
Pd
Topr
Tstg
RATINGS
−0.3∼V
DD
＋0.3
−0.3∼＋22
−0.3∼＋22
−0.3∼＋22
−0.3∼V
DD
＋0.3
−0.3∼V
DD
＋0.3
−0.3∼＋22
±100
150
−40∼＋85
−55∼＋125
Ta=25℃
UNITS
Ｖ
Ｖ
Ｖ
Ｖ
Ｖ
Ｖ
Ｖ
mA
mW
℃
℃
390
04S_01XC9101/9102新規 02.09.12 14:38 ページ 391
XC9101
Series
■Electrical Characteristics
XC9101C33AKR
PARAMETER
Output Voltage
Maximum Operating Voltage
Minimum Operating Voltage
Supply Current 1
SYMBOL
V
OUT
V
IN
max
V
IN
min
I
DD
1
V
IN
=2.5V
V
OUT
=CE=Set Output Voltage×0.95V
V
IN
=2.5V, CE=V
IN
V
OUT
=Set Output Voltage×1.05V
V
IN
=2.5V, CE=V
OUT
=V
SS
RT=10.0kΩ, CT=220pF
V
IN
=2.5V∼20V
V
IN
=2.5V
Topr=−40∼+85℃
V
OUT
=Set Voltage×0.95V
V
OUT
=Set Voltage×1.05V
V
IN
pin voltage−I
SEN
pin voltage
V
IN
=2.5V, I
SEN
=2.5V
CE=V
IN
=2.5V, V
OUT
=0V
CE=0V, V
IN
=2.5V, V
OUT
=0V
Existence of CLK Oscillation,
V
OUT
=0V, CE : Voltage applied
CE "Low" Voltage
EXT "High" ON
Resistance
EXT "Low" ON
Resistance
Efficiency *1
Soft-Start Time
CC/GAIN Pin
Output Impedance
V
CEL
Disappearance of CLK Oscillation,
V
OUT
=0V, CE : Voltage applied
R
EXTH
EXT=V
IN
−0.4V, CE=V
IN
=2.5V
V
OUT
=Set voltage×0.95V
EXT=0.4V, CE=V
IN
=2.5V
V
OUT
=Set voltage×1.05
31
58
Ω
r
0.2
V
t
90
4.5
−0.1
−0.1
0.6
150
7
0
0
79
280
I
OUT
=300mA
CONDITIONS
MIN.
3.218
20
−
TYP.
3.300
−
−
150
MAX.
3.382
−
2.5
255
V
V
V
μA
Ta=25℃
UNITS CIRCUITS
q
q
q
w
Supply Current 2
Stand-by Current
CLK Oscillation Frequency
Frequency Input Stability
Frequency Temperature
Fluctuation
Maximum Duty Cycle
Minimum Duty Cycle
Current Limiter Voltage
I
SEN
Current
CE "High" Current
CE "Low" Current
CE "High" Voltage
I
DD
2
I
STB
F
OSC
ΔF
OSC
ΔV
IN
½F
OSC
ΔF
OSC
ΔTopr½F
OSC
MAXDTY
MINDTY
I
LIM
I
ISEN
I
CEH
I
CEL
V
CEH
90
0.5
330
±5
176
2.0
380
μA
μA
kHz
%
w
w
e
e
4
±5
85
89
0
220
13
0.1
0.1
%
%
%
mV
μA
μA
μA
V
e
r
r
y
y
t
t
t
R
EXTL
EFFI
T
SS
R
CCGAIN
27
88
45
Ω
%
r
q
q
u
Connect C
SS
and R
SS
, CE : 0V→2.5V
5
10
400
20
ms
kΩ
V
IN
= 2.5V unless specified
*1 : EFFI = {[(Output Voltage)
×
(Output Current)]
÷
[(Input Voltage)
×
(Input Current)]}
×
100
*2 : The capacity range of the capacitor used to set the external CLK frequency is 150
~
220pF
391
