XC9206/XC9207/XC9208
Series
■
ELECTRICAL CHARACTERISTICS
XC9206A18CMR, XC9207A18CMR, XC9208A18CMR
PARAMETER
Output Voltage
Operating Voltage Range
Maximum Output Current
U.V.L.O. Voltage
Supply Current 1
Supply Current 2
Stand-by Current
Oscillation Frequency
PFM Pulse Width Rate
Maximum Duty Cycle
Minimum Duty Cycle
Efficiency
(*2)
Lx SW ON Resistance
Current Limit
CE "H" Voltage
SYMBOL
V
OUT
V
IN
I
OUTMAX
V
UVLO
I
DD1
I
DD2
I
STB
FOSC
PFMDTY
MAXDTY
MINDTY
EFFI
R
Lx
I
LIM
V
CEH
CONDITIONS
V
OUT
=1.8V, FOSC=1.2MHz, Ta=25℃
MIN.
TYP.
MAX. UNIT
V
V
mA
V
μA
μA
μA
CIRCUIT
When connected to ext. components
1.764 1.800 1.836
CE=V
IN
, I
OUT
=30mA
(XC9206, 9207) 1.8
-
6.0
(XC9208)
When connected to ext. components
CE=V
IN
, V
OUT
=0V,
Voltage which Lx pin voltage holding "L"
level
(*1)
CE=V
IN
, V
OUT
=fixed voltage x 0.9V
CE=V
IN
, V
OUT
=fixed voltage x 1.1V
CE=V
SS
, V
OUT
=fixed voltage x 1.1V
When connected to ext. components
CE=V
IN
, I
OUT
=30mA
When connected to ext. components
(XC9207, XC9208 only), CE=V
IN
,
I
OUT
=1mA
CE=V
IN
, V
OUT
=0V
CE=V
OUT
=V
IN
When connected to ext. components,
CE=V
IN
, I
OUT
=100mA
CE=V
IN
, V
OUT
=0V, I
Lx
=400mA
(*3)
V
IN
=CE=5.0V, V
OUT
=0V
V
OUT
=0V, When CE
voltage is applied Lx
determine "H"
(XC9206, 9207)
(XC9208)
2.0
500
1.00
-
-
-
-
-
1.40
255
98
0
6.0
-
1.78
413
158
1
①
①
①
②
③
③
③
①
①
②
②
①
④
④
⑤
1.020 1.200 1.380 MHz
24
100
-
-
-
-
1.2
0.9
V
SS
V
IN
-0.3
-
-0.1
-0.1
0.8
-
30
-
-
86
0.4
600
-
-
-
-
-
-
-
-
-
0.9
-
V
IN
V
V
IN
0.3
-
V
IN
-1.0
0.1
0.1
6.0
12.0
V
V
V
μA
μA
ms
ms
0
36
%
%
%
%
Ω
mA
CE "L" Voltage
PWM "H" Voltage
PWM "L" Voltage
CE "H" Current
CE "L" Current
Soft-Start Time
Latch Time
V
CEL
V
PWMH
V
PWML
I
CEH
I
CEL
T
SS
Tlat
V
OUT
=0V, When CE voltage is applied Lx
determine "L"
When connected to ext. components
(XC9208 only), I
OUT
=1mA
(*4)
When connected to ext. components
(XC9208 only), I
OUT
=1mA
(*4)
CE=V
IN
=5.5V, V
OUT
=0V
CE=0V, V
IN
=5.5V, V
OUT
=0V
When connected to ext. components
CE=0V
→
V
IN
, I
OUT
=1mA
When connected to ext. components
V
IN
=CE=5.0V, short V
OUT
by 1Ω
(*5)
resistance
⑤
①
①
⑤
⑤
①
⑥
Test condition: Unless otherwise stated, V
IN
= 3.6V
NOTE:
*1: Including hysteresis operating voltage range.
*2: EFFI = [ (output voltage x output current) / (input voltage x input current) ] x 100
*3: On resistance = V
Lx
(measurement voltage) / 0.4
*4: The CE/MODE pin of the XC9208A series works also as an external PWM control and PWM/PFM control switching pin. When the
IC is in the operation, control is switched to the PWM mode when the CE/MODE pin voltage is equal to or greater than V
IN
minus 0.3
V, and to the automatic PWM/PFM switching mode when the CE/MODE pin voltage is equal to or lower than V
IN
minus 1.0 V and
equal to or greater than V
CEH
.
*5: Time until it short-circuits V
OUT
with GND through 1Ωof resistance from a state of operation and is set to V
OUT
=0V from current limit
pulse generating.
4/16
TOREX [ TOREX SEMICONDUCTOR ]
