04S_02XC6367/68 02.09.12 14:41 ページ 407
Series
PWM Controlled, PWM/PFM Switchable Step‐Up DC/DC Controllers
NInput
Voltage Range : 0.9~10.0V
NOutput
Voltage Range : 1.5~6.5V(±2.5%)
NOscillator
Frequency : 300kHz(±15%)
NPWM/PFM
Switching Control (XC6368)
NHigh
Efficiency
NSOT-25
Package
: 84% (typ.)
■Applications
GElectronic
Information Organizers
GPalmtops
GCellular
and portable phones
GPortable
Audio Systems
GVarious
Multi-function Power Supplies
4
■Features
Input voltage range
: 0.9V~10V
Operating voltage range
: 2.0V~10V
Output voltage range
: 1.5V~6.5V programmable in 0.1V
steps (±2.5%)
Oscillator frequency
: 300, 100kHz (±15%)
Custom products for 180, 500kHz
Output Current
: 200mA + (V
IN
=1.8V, V
OUT
=3.3V)
High Efficiency
: 84% (typ.)
Stand-by capability
: I
STB
=0.5A (max.)
Selection
: Soft start set-up external
Output Voltage set-up internal (V
OUT
)
Output Voltage set-up external (FB)
Package
: SOT-25
■General Description
The XC6367/68 series are multi-functional step-up DC/DC converter
controllers with built-in high speed, low ON resistance drivers.
Large output currents are possible using an externally connected
transistor, coil, diode and condenser.
Output voltage is selectable in 0.1 steps within a 1.5V ~ 6.5V range
(±2.5%). For output voltages outside this range, we recommend this FB
version, which has a 1.0V internal reference voltage. Using this version,
the required output voltage can be set-up using 2 external resistors.
With a 300kHz switching frequency, the size of the external components
can be reduced.
Control switches from PWM to PFM during light loads with the XC6368
(PWM/PFM switchable) and the series is highly efficient from light loads
to large output currents.
Soft start time of XC6367/68A, B, and C series is internally set to
10msec and XC6367/68C, D, and F series regulate soft start time by
connecting resistors and capacitors exteranally.
During stand-by time (CE pin "Low"), current consumption is reduced to
less than 0.5µA.
■Typical Application Circuit
SD
L
V
DD
V
OUT
■Typical Performance
Characteristic
XC6368A333MR (300kHz,3.3V)
L=22μH(CR54), C
L
=94μF(Tantalum)
SD:MA737, Tr:XP161A1355P
EXT
Tr
V
IN
C
IN
GND
CE
100
C
L
（Tantalum）
R
L
2.7V
V
OUT
Efficiency:EFFI (%)
80
60
40
20
0
0.1
1
10
100
1000
V
IN
=0.9V 1.2V
1.5V 1.8V
Output Current:I
OUT
(mA)
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XC6367/6368
Series
■Pin Configuration
XC6367/XC6368 series
A, B, C, D types
EXT
GND
■Pin Assignment
PIN
NUMBER
XC6367 / XC6368
A, B, C, D
5
E, F
5
-
4
1
EXT
V
DD
GND
CE
V
OUT
(FB)
External transistor connection
Supply voltage input
Ground
Chip Enable
(C, D, F types : soft start set-up external,
soft start capacitor connected)
Output voltage monitor
(E, F types : output voltage monitor, power supply)
(B, D types : output voltage set-up external)
PIN
NAME
FUNCTION
XC6367/XC6368 series
E, F types
EXT
GND
5
4
5
4
1
V
OUT
（FB）
2
V
DD
3
CE
1
CE
2
V
OUT
3
N.C.
2
4
3
SOT-25
（TOP VIEW）
SOT-25
（TOP VIEW）
1
2
4
■Product Classification
GSelection
Guide
START
Soft-start set-up internal
Output voltage set-up internal (V
OUT
)
V
OUT
=V
DD
pin
Output voltage set-up external (FB)
Soft-start set-up external
Output voltage set-up internal (V
OUT
)
V
OUT
=V
DD
pin
Output voltage set-up external (FB)
XC6367C,XC6368C
XC6367F,XC6368F
XC6367D,XC6368D
XC6367A,XC6368A
XC6367E,XC6368E
XC6367B,XC6368B
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XC6367/6368
Series
GOrdering
Information
XC6367qwerty
XC6367 Series
SYMBOL
q
PWM Control
V
O U T
/FB
SOFT-START
Set-up Internal
Set-up Internal
Set-up External
Set-up External
Set-up Internal
Set-up External
V
OUT
FB
V
OUT
FB
V
OUT
V
OUT
A
B
C
D
E
F
w
e
r
Output voltage value : e.g. 3.0V output : (w=3,
e=0),
F.B. products (B,D types) : (w=1,
e=0)
3
1
2
5
Oscillator Frequency 300kHz
Oscillator Frequency 100kHz
Oscillator Frequency 180kHz (Custom)
Oscillator Frequency 500kHz (Custom)
Package SOT-25
Embossed Tape : Standard Feed
: Reverse Feed
4
t
y
M
R
L
XC6368qwerty
XC6368 Series
PWM/PFM switching control (same as XC6367 series)
■Packaging Information
GSOT-25
0.15
-0.05
0.4
+0.1
-0.05
+0.1
0∼0.1
2.8±0.2
1.6
+0.2
-0.1
（0.95）
1.9±0.2
2.9±0.2
1.1±0.1
0.2min
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XC6367/6368
Series
■Marking
GXC6367
Series
q
Represents the Product Classification
qwer
PRODUCT NAME
XC6367A
XC6367B
SOT-25
(TOP VIEW)
DESIGNATOR
A
B
C
D
E
F
XC6367C
XC6367D
XC6367E
XC6367F
w
Represents the integer of the Output Voltage and Oscillator Frequency
INTEGER OF THE
OUTPUT VOLTAGE
OSCILLATOR FREQUENCY（kHz）
100
B
C
D
E
F
H
180
1
2
3
4
5
6
300
1
2
3
4
5
6
500
B
C
D
E
F
H
4
1
2
3
4
5
6
e
Represents the decimal number of the Output Voltage and Oscillator Frequency
THE DECIMAL NUMBER
OF OUTPUT VOLTAGE
0
1
2
3
4
5
6
7
8
9
OSCILLATOR FREQUENCY（kHz）
100
0
1
2
3
4
5
6
7
8
9
180
0
1
2
3
4
5
6
7
8
9
300
A
B
C
D
E
F
H
K
L
M
500
A
B
C
D
E
F
H
K
L
M
r
Denotes the production lot number
0 to 9, A to Z repeated(G.I.J.O.Q.W excepted)
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XC6367/6368
Series
GXC6368
Series
q
Represents the Product Classification
qwer
PRODUCT NAME
XC6368A
XC6368B
XC6368C
XC6368D
XC6368E
XC6368F
DESIGNATOR
K
L
M
N
P
R
SOT-25
(TOP VIEW)
w
Represents the integer of the Output Voltage and Oscillator Frequency
INTEGER OF THE
OUTPUT VOLTAGE
1
2
3
4
5
6
CUSTOM
OSCILLATOR FREQUENCY（kHz）
100
B
C
D
E
F
H
180
1
2
3
4
5
6
S
300
1
2
3
4
5
6
500
B
C
D
E
F
H
4
e
Represents the decimal number of the Output Voltage and Oscillator Frequency
THE DECIMAL NUMBER
OF OUTPUT VOLTAGE
0
1
2
3
4
5
6
7
8
9
OSCILLATOR FREQUENCY（kHz）
100
0
1
2
3
4
5
6
7
8
9
180
0
1
2
3
4
5
6
7
8
9
300
A
B
C
D
E
F
H
K
L
M
500
A
B
C
D
E
F
H
K
L
M
r
Denotes the production lot number
0 to 9, A to Z repeated(G.I.J.O.Q.W excepted)
411
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