PWM Controlled, PWM/PFM Switchable StepUp DC/DC Controllers
Series
407
4
General Description
Features
Applications
Typical Application Circuit
Typical Performance
Characteristic
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 0.5
A.
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
GElectronic Information Organizers
GPalmtops
GCellular and portable phones
GPortable Audio Systems
GVarious Multi-function Power Supplies
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
: 84% (typ.)
NSOT-25 Package
V
OUT
R
L
Tr
L
V
DD
V
OUT
GND
CE
EXT
C
L
Tantalum
C
IN
SD
V
IN
0
20
40
60
80
100
0.1
1
10
100
1000
V
IN
=0.9V 1.2V
1.8V
1.5V
2.7V
XC6368A333MR (300kHz,3.3V)
Efficiency:EFFI (%)
Output Current:I
OUT
(mA)
L=22H(CR54), C
L
=94F(Tantalum)
SD:MA737, Tr:XP161A1355P
04S_02XC6367/68 02.09.12 14:41 407
XC6367/6368
Series
408
4
Pin Configuration
Pin Assignment
Product Classification
GSelection Guide
XC6367/XC6368 series
A, B, C, D types
5
EXT
GND
V
OUT
FB
V
DD
SOT-25
TOP VIEW
CE
XC6367/XC6368 series
E, F types
4
3
2
1
5
EXT
GND
CE
V
OUT
SOT-25
TOP VIEW
N.C.
4
3
2
1
PIN
NUMBER
5
A, B, C, D
PIN
NAME
EXT
FUNCTION
External transistor connection
Output voltage monitor
(E, F types : output voltage monitor, power supply)
(B, D types : output voltage set-up external)
1
XC6367 / XC6368
5
2
V
DD
Supply voltage input
-
4
GND
Ground
4
E, F
2
V
OUT
(FB)
Chip Enable
(C, D, F types : soft start set-up external,
soft start capacitor connected)
3
1
CE
XC6367A,XC6368A
XC6367E,XC6368E
XC6367B,XC6368B
XC6367C,XC6368C
XC6367F,XC6368F
XC6367D,XC6368D
START
Output voltage set-up internal (V
OUT
)
Soft-start set-up internal
Output voltage set-up external (FB)
Output voltage set-up internal (V
OUT
)
Soft-start set-up external
V
OUT
=V
DD
pin
V
OUT
=V
DD
pin
Output voltage set-up external (FB)
04S_02XC6367/68 02.09.12 14:41 408
XC6367/6368
Series
409
4
GOrdering Information
A
SYMBOL
V
O U T
/FB
SOFT-START
B
3
M
C
D
E
F
V
O U T
FB
V
O U T
FB
V
O U T
V
O U T
Set-up Internal
Set-up Internal
Set-up External
Set-up External
Set-up Internal
Set-up External
Output voltage value : e.g. 3.0V output : (w=3, e=0),
F.B. products (B,D types) : (w=1, e=0)
Oscillator Frequency 300kHz
Package SOT-25
1
2
Oscillator Frequency 100kHz
Oscillator Frequency 180kHz (Custom)
5
Oscillator Frequency 500kHz (Custom)
R
L
Embossed Tape : Standard Feed
: Reverse Feed
XC6367 Series
PWM Control
XC6367qwerty
XC6368 Series
PWM/PFM switching control (same as XC6367 series)
XC6368qwerty
q
w
e
r
t
y
Packaging Information
GSOT-25
0.4
0.95
1.90.2
2.90.2
+0.1
-0.05
1.10.1
00.1
0.15
0.2min
+0.1
-0.05
2.80.2
1.6
+0.2
-0.1
04S_02XC6367/68 02.09.12 14:41 409
XC6367/6368
Series
410
4
Marking
GXC6367 Series
SOT-25
(TOP VIEW)
q w e r
q Represents the Product Classification
XC6367F
DESIGNATOR
F
XC6367E
E
XC6367D
D
XC6367C
C
XC6367B
B
XC6367A
A
w Represents the integer of the Output Voltage and Oscillator Frequency
1
6
100
OSCILLATOR FREQUENCYkHz
INTEGER OF THE
OUTPUT VOLTAGE
B
500
B
300
1
180
1
5
4
3
2
r Denotes the production lot number
0 to 9, A to Z repeated(G.I.J.O.Q.W excepted)
PRODUCT NAME
C
C
2
2
D
D
3
3
E
E
4
4
F
F
5
5
H
H
6
6
e Represents the decimal number of the Output Voltage and Oscillator Frequency
0
9
100
OSCILLATOR FREQUENCYkHz
THE DECIMAL NUMBER
OF OUTPUT VOLTAGE
500
300
A
180
8
7
6
1
B
H
K
L
M
5
4
3
2
0
9
8
7
6
1
5
4
3
2
0
9
8
7
6
1
5
4
3
2
C
D
E
F
A
B
H
K
L
M
C
D
E
F
04S_02XC6367/68 02.09.12 14:41 410
XC6367/6368
Series
411
4
GXC6368 Series
SOT-25
(TOP VIEW)
q w e r
XC6368F
XC6368E
XC6368D
XC6368C
XC6368B
XC6368A
1
CUSTOM
100
B
500
B
300
1
180
1
5
4
3
2
C
C
2
2
D
D
3
3
E
E
4
4
F
F
5
5
S
6
H
H
6
6
K
L
M
N
P
R
0
9
100
500
300
A
180
8
7
6
1
B
H
K
L
M
5
4
3
2
0
9
8
7
6
1
5
4
3
2
0
9
8
7
6
1
5
4
3
2
C
D
E
F
A
B
H
K
L
M
C
D
E
F
q Represents the Product Classification
DESIGNATOR
w Represents the integer of the Output Voltage and Oscillator Frequency
INTEGER OF THE
OUTPUT VOLTAGE
r Denotes the production lot number
0 to 9, A to Z repeated(G.I.J.O.Q.W excepted)
PRODUCT NAME
e Represents the decimal number of the Output Voltage and Oscillator Frequency
OSCILLATOR FREQUENCYkHz
OSCILLATOR FREQUENCYkHz
THE DECIMAL NUMBER
OF OUTPUT VOLTAGE
04S_02XC6367/68 02.09.12 14:41 411
PDF 
ZIP