XC6367/6368
Series
■Absolute Maximum Ratings
Ta=25°C
PARAMETER
V
DD
Pin Voltage
V
OUT
Pin Voltage
FB Pin Voltage
CE Pin Voltage
EXT Pin Voltage
EXT Pin Current
Continuous Total Power Dissipation
Operating Ambient Temperature
Storage Temperature
SYMBOL
V
DD
V
OUT
V
FB
V
CE
V
EXT
I
EXT
Pd
Topr
Tstg
RATINGS
-0.3 ~ 12
-0.3 ~ 12
-0.3 ~ 12
-0.3 ~ 12
-0.3 ~ V
DD
+0.3
±100
150
-30 ~ +80
-40 ~ +125
UNITS
V
V
V
V
V
mA
mW
°C
°C
4
■Electrical Characteristics
XC6367A333MR, XC6368A333MR
PARAMETER
Output Voltage
Supply Voltage (Note 1)
Maximum Input Voltage
Oscillation Start-up Voltage 1
Oscillation Start-up Voltage 2
Oscillation Hold Voltage
Supply Current 1
Supply Current 2
Stand-by Current
Oscillator Frequency
Maximum Duty Ratio
PFM Duty Ratio (Note 3)
CE "High" Voltage
CE "Low" Voltage
EXT "High" ON Resistance
EXT "Low" ON Resistance
Efficiency (Note 2)
Soft-Start Time
SYMBOL
V
OUT
V
DD
V
IN
V
ST
1
V
ST
2
V
HLD
I
DD
1
I
DD
2
I
STB
F
OSC
MAXDTY
PFMDTY
V
CEH
V
CEL
R
EXTH
R
EXTL
EFFI
T
SS
Use of a 2SD1628 transistor, I
OUT
=1.0mA
V
OUT
=CE : Apply voltage
Use of a 2SX1628 transistor recommended, I
OUT
=1.0mA
V
OUT
=CE=set-up output voltage x 0.95
V
OUT
=CE=set-up output voltage + 0.5V
V
OUT
=set-up output voltage x 0.95, CE=0V
Same as I
DD
1
Same as I
DD
1
I
OUT
=0mA
V
OUT
=set-up output voltage x0.95
V
OUT
=set-up output voltage x0.95
Same as I
DD
1, V
EXT
=V
OUT
-0.4V
Same as I
DD
1, V
EXT
=0.4V
(V
OUT
=3.3V, F
OSC
=300kHz)
CONDITIONS
MIN
2.0
10.0
-
-
-
-
-
-
255
78
15
0.65
-
-
-
-
5
TYP
-
-
-
-
-
130
20
-
300
85
25
-
-
29
19
84
10
Ta=25°C
MAX UNITS
V
V
V
V
V
V
µA
µA
µA
kHz
%
%
V
V
Ω
Ω
%
msec
10.0
-
0.9
0.8
0.7
200
35
0.5
345
92
35
-
0.20
43
27
-
20
3.218 3.300 3.383
Measuring conditions: Unless otherwise specified, connect V
DD
to V
OUT
; V
IN
=set-up output voltage x 0.6, I
OUT
=130mA
Note 1: When taking V
DD
from another power source please ensure that V
DD
= 2.0V or more.
Oscillation will occur with a value of V
DD
= 0.8V or more, but with a value of V
DD
= 2.0V or more,
output voltage and oscillation frequency will be stable.
Note 2: EFFI = {[(output voltage) x (output current)]
÷
[(input voltage) x (input current)} x 100
Note 3: Applies to the XC6368 series only (duty ratio when control changes to PFM).
413
TOREX [ TOREX SEMICONDUCTOR ]
