XC9260/XC9261
Series
■ELECTRICAL
CHARACTERISTICS
XC9260/XC9261 Series
PARAMETER
Output Voltage
Operating Voltage Range
Maximum Output Current
UVLO Voltage
(*2)
SYMBOL
V
OUT
V
IN
I
OUTMAX
V
UVLO
CONDITIONS
When connected to external components,
I
OUT
=30mA
-
When connected to external components
V
IN
=<C -1>
(*1),
MIN.
<E-1>
2.7
1500
(*6)
TYP.
<E-2>
-
-
2.0
15.0
25.0
250
400
0.0
<E-6>
150
30
0.14
0.10
0.0
0.0
3.0
±100
-
-
-
-
0.30
MAX.
<E-3>
5.5
-
2.68
25.0
40.0
450
825
1.0
<E-7>
-
-
0.28
0.20
1.0
30.0
4.5
-
V
IN
0.30
0.1
0.1
0.50
UNITS
V
V
mA
V
Ta=25℃
CIRCUIT
①
①
①
③
V
OUT
=0.6V,Voltage which Lx pin holding “L” level
1.35
-
-
-
-
-
<E-5>
-
-
Quiescent Current
(XC9261)
Quiescent Current
(XC9260)
Stand-by Current
Minimum ON time
Thermal shutdown
Thermal shutdown
hysteresis
Lx SW ”H” ON Resistance
Lx SW ”L” ON
(*4)
Resistance
Lx SW ”H” Leakage Current
Lx SW ”L” Leakage Current
Current Limit
(*5)
Iq
V
OUT
=V
OUT(T)
× 1.1V
f
OSC
=1.2MHz
f
OSC
=3.0MHz
f
OSC
=1.2MHz
f
OSC
=3.0MHz
μA
②
Iq
I
STB
t
ONmin
T
TSD
T
HYS
R
LXH
R
LXL
I
LeakH
I
leakL
I
LIMH
∆V
OUT
/
(V
OUT
・∆Topr)
V
CEH
V
CEL
I
CEH
I
CEL
t
SS
V
OUT
=V
OUT(T)
× 1.1V
V
CE
=0.0V
μA
μA
ns
℃
℃
Ω
Ω
μA
μA
A
ppm/℃
V
V
μA
μA
ms
②
②
①
①
①
④
④
⑤
⑤
⑥
①
When connected to external components,
V
IN
= <C-1>, I
OUT
= 1mA
-
-
V
OUT
=0.6V, I
LX
=100mA
(*3)
-
(*3)
V
OUT
=V
OUT(T)
V × 1.1, I
LX
=100mA
-
-
-
2.5
-
1.40
V
SS
(*7)
V
IN
=5.5V, V
CE
=0V, V
OUT
=0V, V
LX
=0.0V
V
IN
=5.5V, V
CE
=0V, V
OUT
=0V, V
LX
=5.5V
V
OUT
=0.6V, I
Lx
until Lx pin oscillates
I
OUT
=30mA, -40℃≦Topr≦105℃
V
OUT
=0.6V, Applied voltage to V
CE
,
(*6)
Voltage changes Lx to “H” level
V
OUT
=0.6V, Applied voltage to V
CE
,
(*6)
Voltage changes Lx to “L” level
V
IN
=5.5V, V
CE
=5.5V, V
OUT
=0.0V
V
IN
=5.5V, V
CE
=0.0V, V
OUT
=0.0V
V
CE
=0.0V
→
5.0V V
OUT
=V
OUT(T)
V × 0.9
After "H" is fed to CE, the time by when clocks are
generated at Lx pin.
Sweeping V
OUT
, V
OUT
voltage which Lx becomes “L”
(*6)
level
V
CE
=0V, V
OUT
=4.0V
Output Voltage
Temperature
Characteristics
CE ”H” Voltage
CE ”L” Voltage
CE ”H” Current
CE ”L” Current
Soft-start Time
Short Protection
Threshold
Voltage (Type B)
C
L
Discharge (Type B)
NOTE:
(*1)
③
③
⑤
⑤
③
-0.1
-0.1
0.10
V
SHORT
R
DCHG
0.17
50
0.27
210
0.37
300
V
Ω
③
⑦
Unless otherwise stated, V
IN
=5V, V
CE
=5V, V
OUT(T)
=Nominal Value,
When the difference between the input and the output is small, 100% duty might come up and internal control circuits keep P-ch driver turning
on even though the output current is not so large.
If current is further pulled from this state, output voltage will decrease because of P-ch driver ON resistance.
(*2)
(*3)
(*4)
(*5)
(*6)
(*7)
Including UVLO detect voltage, hysteresis operating voltage range for UVLO release voltage.
R
LXH
= (V
IN
- Lx pin measurement voltage) / 100mA, R
LXL
= Lx pin measurement voltage / 100mA
Design value for the XC9261 series.
Current limit denotes the level of detection at peak of coil current.
"H"=V
IN
~ V
IN
- 1.2V, "L"=- 0.1V ~ + 0.1V
AGND in the case of USP-6C.
6/28
TOREX [ TOREX SEMICONDUCTOR ]
