☆GO-Compatible
◆Input
Voltage Range : 0.9~10.0V
◆Output
Voltage Range : 1.5~6.5V(±2.5%)
◆Oscillator
Frequency : 300kHz(±15%)
◆PWM/PFM
Switching Control (XC6368)
◆High
Efficiency
: 84% (TYP.)
◆SOT-25
Package
■APPLICATIONS
●Electronic
information organizers
●Palmtops
●Cellular
and portable phones
●Portable
audio systems
●Various
multi-function power supplies
■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 capacitor.
Output voltage is selectable in 100mV increments within a
range of 1.5V ~ 6.5V (±2.5%). For output voltages outside this
range, we recommend FB version, which has a 1.0V internal
reference voltage. Using the FB version, the required output
voltage can be set-up using 2 external resistors.
With a 300kHz oscillation 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 externally.
During stand-by (CE pin "Low"), supply current is reduced to
less than 0.5μA.
■FEATURES
Input Voltage Range
: 0.9V ~ 10V
Operating Voltage Range
: 2.0V ~ 10V
Output voltage Range
: 1.5V ~ 6.5V programmable in
100mV increments (±2.5%)
Oscillation Frequency
: 300kHz, 100kHz (±15%)
Custom products for
180kHz, 500kHz
Output Current
High Efficiency
Stand-by capability
Selection
: More than 200mA
(V
IN
=1.8V, V
OUT
=3.3V)
: 84% (TYP.)
: ISTB=0.5μA (MAX.)
: Soft-start set-up external
Output voltage set-up internal(V
OUT
)
Output voltage set-up external(FB)
Package
: SOT-25
■TYPICAL
APPLICATION CIRCUIT
■
TYPICAL PERFORMANCE
CHARACTERISTICS
XC6367_6368 ETR0401_001.doc
553
XC6367/6368
Series
■PIN
CONFIGURATION
（
）
■PIN
ASSIGNMENT
PIN NUMBER
XC6367/XC6368
A, B, C, D
5
2
4
3
E, F
5
-
4
1
EXT
V
DD
GND
CE
: External Transistor Connection
: Supply Voltage Input
: Ground
: Chip Enable
(C, D, F Types: Soft Start External Set-Up,
Soft Start Capacitor Connected)
: Output Voltage Monitor
(E, F Types: Output Voltage Monitor, Power Supply)
(B, D Types: Output Voltage External Set-up)
PIN NAME
FUNCTION
1
2
V
OUT
(FB)
■PRODUCT
CLASSIFICATION
●Selection
Guide
START
Soft-Start Internally Set-Up
Output Voltage Internally Set-Up
(V
OUT
)
V
OUT
=V
DD
pin
XC6367A,XC6368A
XC6367E,XC6368E
XC6367B,XC6368B
Output Voltage Externally Set-Up (FB)
Soft-Start Externally Set-Up
Output Voltage Internally Set-Up
(V
OUT
)
V
OUT
=V
DD
pin
XC6367C,XC6368C
XC6367F,XC6368F
XC6367D,XC6368D
Output Voltage Externally Set-Up
(FB)
554
XC6367/6368
Series
■PRODUCT
CLASSIFICATION (Continued)
●Ordering
Information
XC6367①②③④⑤⑥
XC6368①②③④⑤⑥
DESIGNATOR
PWM Control
PWM/PFM Switching Control
DESCRIPTION
SYMBOL
A
B
①
Type of DC/DC Converter
C
D
E
F
15 ~ 65
② ③
Output Voltage
10
3
④
Oscillation Frequency
1
2
5
⑤
⑥
Package
Device Orientation
M
R
L
: FB type (B, D types): 10 fixed
→ ②=1, ③=0
fixed
: 300kHz
: 100kHz
: 180kHz (Custom)
: 500kHz (Custom)
: SOT-25 (SOT-23-5)
: Embossed tape, standard feed
: Embossed tape, reverse feed
DESCRIPTION
: V
OUT
type: V
OUT
internally set-up, Soft-start internally set-up
: FB type: V
OUT
externally set-up, Soft-start internally set-up
: V
OUT
type: V
OUT
internally set-up, Soft-start externally set-up
: FB type: V
OUT
externally set-up, Soft-start externally set-up
: V
OUT
type: V
OUT
internally set-up, Soft-start internally set-up
: V
OUT
type: V
OUT
internally set-up, Soft-start externally set-up
: V
OUT
type: 3.0V output
→ ②=3, ③=0
■PACKAGING
INFORMATION
●SOT-25
0.15
-0.05
0.4
-0.05
+0.1
+0.1
0½0.1
2.8±0.2
1.6
-0.1
+0.2
（0.95）
1.9±0.2
2.9±0.2
1.1±0.1
min 0.2
555
XC6367/6368
Series
■MARKING
RULE
●XC6367/6368
Series
①Represents
product series
MARK
A
B
C
D
E
F
PRODUCT SERIES
XC6367A
XC6367B
XC6367C
XC6367D
XC6367E
XC6367F
MARK
K
L
M
N
P
R
PRODUCT SERIES
XC6368A
XC6368B
XC6368C
XC6368D
XC6368E
XC6368F
SOT-25
(TOP VIEW)
②Represents
integer of output voltage and oscillation frequency
OUTPUT VOLTAGE (V)
1
2
3
4
5
6
FOR CUSTOM PRODUCT
100
B
C
D
E
F
H
OSCILLATION FREQUENCY (kHz)
180
300
1
2
3
4
5
6
S
1
2
3
4
5
6
500
B
C
D
E
F
H
③Represents
decimal number of output voltage and oscillation frequency
OUTPUT VOLTAGE (V)
0
1
2
3
4
5
6
7
8
9
100
0
1
2
3
4
5
6
7
8
9
OSCILLATION FREQUENCY (kHz)
180
300
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
H
K
L
M
500
A
B
C
D
E
F
H
K
L
M
④Represents
production lot number
0 to 9, A to Z repeated (G, I, J, O, Q, W excepted)
556
XC6367/6368
Series
■BLOCK
DIAGRAMS
XC6367, XC6368 Series A, C, E, F types (V
OUT
)
V
OUT
Error Amp.
+
-
Phase
Compensation
PWM
Comparator
+
-
Buffer,
Driver
V
DD
EXT
CE
Vre with
Soft Start,
CE
PWM/PFM
Controller
Ramp Wave
Generator,
OSC
GND
Note : Connecting V
OUT
and V
DD
internally with E F types.
XC6367, XC6368 Series B,D types (FB)
Phase
Compensation
Error Amp.
FB
+
-
-
PWM
Comparator
+
Buffer,
Driver
V
DD
EXT
CE
Vref with
Soft Start,
CE
PWM/PFM
Controller
Ramp Wave
Generator,
OSC
GND
557
