XC9223/9224 Series
1A Driver Transistor Built-In Step-Down DC/DC Converters
Preliminary
ELECTRICIAL CHARACTERISTICS
XC9223B081xx
PARAMETER
Input Voltage
FB Voltage
Output Voltage Range
Maximum Output Current (*1)
U.V.L.O. Voltage (*2)
Supply Current 1
Supply Current 2
Stand-by Current
Oscillation Frequency
External Clock Signal
Synchronized Frequency
External Clock Signal Duty
Maximum Duty Ratio
Minimum Duty Ratio
PFM Switch Current
Efficiency (*3)
Lx SW “H” On Resistance (*4)
Lx SW “L” On Resistance (*4)
Current Limit 1
Current Limit 2
Integral Latch Time (*5, *6)
Short Detect Voltage
Soft-Start Time
Thermal Shutdown Temperature
Hysteresis Temperature
CE “H” Voltage
CE “L” Voltage
MODE/SYNC “H” Voltage
MODE/SYNC “L” Voltage
LIM “H” Voltage
LIM “L” Voltage
CE “H” Current
CE “L” Current
MODE/SYNC “H” Current
MODE/SYNC “L” Current
LIM “H” Current
LIM “L” Current
FB “H” Current
FB “L” Current
Lx SW “H” Leak Current
Lx SW “L” Leak Current (*7)
Data Sheet
Topr=25
O
C
SYMBOL
V
IN
V
FB
V
OUTSET
I
OUTMAX
V
UVLO
I
DD1
I
DD2
ISTB
FOSC
FB=VFB x 0.9, Voltage which Lx pin voltage
holding “L” level
FB=VFB x 0.9
FB=VFB x 1.1 (Oscillation stops)
CE=0V
Connected to external components,
IOUT=10mA
Connected external components,
SYNCOSC
SYNCDTY
MAXDTY
MINDTY
I
PFM
EFFI
R
LxH
R
LxL
I
LIM1
I
LIM2
T
LAT
V
SHORT
T
SS
T
TSD
T
HYS
V
CEH
V
CEL
V
MODE/SYNCH
V
MODE/SYNCL
V
LIMH
V
LIML
I
CEH
I
CEL
I
MODE/SYNCH
I
MODE/SYNCL
I
LIMH
I
LIML
I
FBH
I
FBL
I
LxH
I
LxL
VIN=CE=6.0V
VIN=6.0V, CE=0V
VIN=CE=MODE/SYNC=6.0V
VIN=CE=6.0V, MODE/SYNC=0V
VIN=CE=LIM=6.0V
VIN=CE=6.0V, LIM=0V
VIN=CE=FB=6.0V
VIN=CE=6.0V, FB=0V
VIN=LX=6.0V, VCE=0V
VIN=6.0V, LX=CE=0V
5
FB=VFB x 0.9, Voltage which Lx becomes “H”
when voltage applied to CE
FB=VFB x 0.9, Voltage which Lx becomes “L”
when voltage applied to CE
LIM=0V, FB=VFB x 0.9
Current which Lx starts oscillation
LIM=VIN, FB=VFB x 0.9
Current which Lx starts oscillation
FB=VFB x 0.9, Short Lx by 1Ω resistance
FB Voltage which Lx becomes “L”
Connected to external components,
CE=0V VIN, IOUT=1mA
FB=VFB x 0.9
FB=VFB x 1.1
Connected to external components,
MODE/SYNC=0V, IOUT=0.1mA
Connected to external components,
CE=VIN=5.0V, VOUT=3.3V, IOUT=200mA
FB=VFB x 0.9, ILx=100mA
IOUT=10mA, apply an external clock signal to
the MODE/SYNC
25
100
-
-
-
-
-
0.5
1.5
-
-
-
-
-
1.2
-
1.2
-
1.2
-
-
-0.1
-
-0.1
-
-0.1
-
-0.1
-
-1.0
-
-
-
150
94
0.23
0.25
-
-
6
0.4
3
150
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
75
-
0
-
-
-
-
-
-
-
-
-
-
-
-
0.4
-
0.4
-
0.4
0.1
-
0.1
-
0.1
-
0.1
-
1.0
-
%
%
%
mA
%
Ω
Ω
A
A
ms
V
ms
O
O
CONDITIONS
MIN.
2.2
0.784
0.8
1.0
-
-
-
-
0.85
TYP.
-
0.800
-
-
1.8
380
30
-
1.00
MAX.
6.0
0.816
VIN
-
-
-
-
1.0
1.15
UNIT
V
V
V
A
V
µA
µA
µA
MHz
CIRCUIT
-
-
-
-
-
-
-
-
-
0.75
-
1.25
MHz
--
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
DC000019
C
C
V
V
V
V
V
V
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
TOREX [ TOREX SEMICONDUCTOR ]
