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413
4
Ta=
25
°
C
PARAMETER
RATINGS
UNITS
SYMBOL
V
DD
Pin Voltage
-0.3 ~ 12
V
V
DD
V
OUT
Pin Voltage
-0.3 ~ 12
V
V
OUT
FB Pin Voltage
-0.3 ~ 12
V
V
FB
CE Pin Voltage
-0.3 ~ 12
V
V
CE
EXT Pin Voltage
-0.3 ~ V
DD
+0.3
V
V
EXT
EXT Pin Current
±
100
mA
I
EXT
Continuous Total Power Dissipation
150
mW
Pd
Operating Ambient Temperature
-30 ~ +80
°
C
Topr
Storage Temperature
-40 ~ +125
°
C
Tstg
XC6367A333MR, XC6368A333MR
PARAMETER
Output Voltage
Supply Voltage (Note 1)
Maximum Input Voltage
Ta=25
°
C
UNITS
3.383
10.0
-
(V
OUT
=3.3V, F
OSC
=300kHz)
V
OUT
V
DD
V
IN
V
V
V
3.300
-
-
3.218
2.0
10.0
CE "Low" Voltage
EXT "High" ON Resistance
EXT "Low" ON Resistance
Efficiency (Note 2)
Soft-Start Time
V
CEL
R
EXTH
R
EXTL
EFFI
T
SS
V
%
0.20
43
27
-
20
-
29
19
84
10
-
-
-
-
5
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
PFM Duty Ratio (Note 3)
CE "High" Voltage
PFMDTY
V
CEH
%
V
35
-
25
-
15
0.65
Same as I
DD
1
I
OUT
=0mA
Oscillation Start-up Voltage 1
Oscillation Start-up Voltage 2
Oscillation Hold Voltage
V
ST
1
V
ST
2
V
HLD
V
V
V
0.9
0.8
0.7
-
-
-
-
-
-
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
msec
Supply Current 1
Supply Current 2
I
DD
1
I
DD
2
-
-
130
20
μ
A
μ
A
200
35
%
92
78
85
Oscillator Frequency
Maximum Duty Ratio
F
OSC
MAXDTY
kHz
345
300
255
Stand-by Current
I
STB
μ
A
-
0.5
-
V
OUT
=set-up output voltage x 0.95, CE=0V
Same as I
DD
1
SYMBOL
CONDITIONS
MAX
MIN
TYP
Unless otherwise specified, connect V
DD
to V
OUT
; V
IN
=set-up output voltage x 0.6, I
OUT
=130mA
Measuring conditions:
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 1:
EFFI = {[(output voltage) x (output current)]
÷
[(input voltage) x (input current)} x 100
Note 2:
Applies to the XC6368 series only (duty ratio when control changes to PFM).
Note 3:
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