
484
Efficiency
XC6381E501MR
PARAMETER
Ta=25
°
C
UNITS
V
OUT
=5.0V
Output Voltage
Maximum Input Voltage
SYMBOL
L,SD,C
L
etc. connected
CONDITIONS
Oscillation Start-up Voltage
I
OUT
=1mA
Oscillation Hold Voltage
I
OUT
=1mA
No-Load Input Current
I
OUT
=0mA,(Note1)
Supply Current 1 (Note 2)
V
IN
=V
OUT
0.95
Supply Current 2
V
IN
=V
OUT
+0.5V
Lx Switch-On Resistance
Same as I
DD
1. VL
X
=0.4V.
Lx Leakage Current
No external components. V
OUT
=VL
X
=10V.
Duty Ratio
Same as I
1.
Measuring of L
X
waveform.
Maximum Oscillation Frequency
Same as I
DD
1. 58% duty.
Same as I
DD
1. F
OSC
>MAXF
OSC
2
Lx Limit Voltage
L,SD,C
L
etc. connected
Measuring conditions: Unless otherwise specified, connect V
DD
to V
OUT
, V
IN
=V
OUT
0.6, I
OUT
=50mA. See Typical Application Circuits, Fig.3.
1. The Schottky diode (SD) must be type MA735, with reverse current (I
R
)<1.0
μ
A at reverse voltage (V
R
)=10.0V.
2. "Supply Current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates
which results in less average power consumption. The current actually provided by an external V
IN
source is represented by "No-Load Input
Current (I
IN
)".
When the V
DD
and V
OUT
pins are independently used, the voltage range at the V
DD
pin should be 2.2V to 10V.
The IC operates from V
DD
=0.8V. However, output voltage and oscillator frequency are properly stabilized when V
DD
=2.2V or higher.
Note
:
V
OUT
V
IN
MIN
4.875
10
V
ST
V
HLD
0.70
I
IN
I
DD
1
I
DD
2
R
SWON
I
LXL
DTY
53
MAXF
OSC
131.75
VLxLMT
0.7
MAX
5.125
0.90
10.6
95.7
48
4.3
1.0
178.25
1.1
EFFI
TYP
5.000
0.80
5.3
47.8
2.4
2.8
58
155
85
V
V
V
μ
A
μ
A
μ
A
μ
A
%
kHz
V
%
V
Efficiency
XC6381E301MR
PARAMETER
Ta=25
°
C
UNITS
V
OUT
=3.0V
Output Voltage
Maximum Input Voltage
SYMBOL
L,SD,C
L
etc. connected
CONDITIONS
Oscillation Start-up Voltage
I
OUT
=1mA.
Oscillation Hold Voltage
I
OUT
=1mA.
No-Load Input Current
I
OUT
=0mA(Note1)
Supply Current 1 (Note 2)
V
IN
=V
OUT
0.95
Supply Current 2
V
IN
=V
OUT
+0.5V
Lx Switch-On Resistance
Same as I
DD
1. VL
X
=0.4V
Lx Leakage Current
No external components. V
OUT
=VL
X
=10V
Duty Ratio
Same as I
1
Measuring of L
X
waveform.
Maximum Oscillation Frequency
Same as I
DD
1. 58% duty.
Same as I
DD
1. F
OSC
>MAXF
OSC
2
Lx Limit Voltage
L,SD,C
L
etc. connected
Measuring conditions: Unless otherwise specified, connect V
DD
to V
OUT
, V
IN
=V
OUT
0.6, I
OUT
=30mA. See Typical Application Circuits, Fig.3.
1. The Schottky diode (SD) must be type MA735, with reverse current (I
R
)<1.0
μ
A at reverse voltage (V
R
)=10.0V.
2. "Supply Current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates
which results in less average power consumption. The current actually provided by an external V
IN
source is represented by "No-Load Input
Current (I
IN
)".
When the V
DD
and V
OUT
pins are independently used, the voltage range at the V
DD
pin should be 2.2V to 10V.
The IC operates from V
DD
=0.8V. However, output voltage and oscillator frequency are properly stabilized when V
DD
=2.2V or higher.
Note
:
V
OUT
V
IN
MIN
2.925
10
V
ST
V
HLD
0.70
I
IN
I
DD
1
I
DD
2
R
SWON
I
LXL
DTY
53
MAXF
OSC
131.75
VLxLMT
0.7
MAX
3.075
0.90
9.3
58.7
4.2
7.9
1.0
63
178.25
1.1
EFFI
TYP
3.000
0.80
4.6
29.3
2.1
5.2
58
155
80
V
V
V
μ
A
μ
A
μ
A
μ
A
%
kHz
V
%
V