![](http://datasheet.mmic.net.cn/290000/XC9103_datasheet_16184671/XC9103_5.png)
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ELECTRICAL CHARACTERISTICS (Continued)
XC9103B093MR, XC9104B093MR, XC9105B093MR
XC9103D093MR, XC9104D093MR, XC9105D093MR
PARAMETER
(FOSC=300 (kHz)
Ta=25
O
C
UNITS
CIRCUIT
*1
*1
*3
*2
*2
Test Conditions: Unless otherwise stated, CL: ceramic, recommended MOS FET should be connected.
VOUT=3.30 (V), VIN=2.00 (V), IOUT=170 (mA)
"
NOTES
*1
*2
*3
-
-0.1
μ
A
5
FB "Low" Current
IFBL
Same as IDD2, FB=0V
-
-
0.1
μ
A
5
FB "High" Current
IFBH
Same as IDD2, FB=VDD
-
0.1
-0.1
μ
A
μ
A
5
5
Same as IDD2, CE=0V
-
-
Same as IDD2, CE=VDD
36
24
4
4
Same as IDD1, VEXT=0.4V
-
-
16
-
24
-
V
V
1
1
IOUT=1.0mA (XC9105B/D)
Same as IDD1, VEXT=VOUT-0.4V
-
-
-
VDD - 1.0
IOUT=1.0mA (XC9105B/D)
V
V
5
5
Same as IDD1
-
-
-
0.20
-
-
%
mS
1
1
5.0
0.65
10.0
20.0
Recommended Circuit using XP161A1355
380
mV
6
EXT = Low level voltage
(XC9103B, 9104B, 9105B)
4
1
PWM Duty Ratio
PFMDTY
No Load (XC9104B/D, 9105B/D)
Step input to FB ( Pulse width:2.0
μ
S or more)
24
32
40
%
Same as IDD1
1.0
345
87
μ
A
5
4
Same as IDD1
255
75
300
81
kHz
%
88
22
μ
A
μ
A
4
4
Same as IDD1, FB=1.2V
Same as IDD1, CE=0V
16
Same as VST2, VDD=3.300V
0.7
V
3
IOUT=1.0mA
0.9
V
3
IOUT=1.0mA
No external connections
CE connected to VDD, Voltage applied, FB=0V
-
V
V
4
-
1.8
-
10
0.882
0.900
0.918
V
1
Output Voltage Range
VOUTSET
VIN=VOUTSET
×
0.6, VDD=3.3V
1.5
30.0
V
2
IOUT=10mA, Using 2SD1628
3.234
3.300
3.366
CONDITIONS
MIN.
TYP.
MAX.
Although the IC starts step-up operations from a VDD of 0.8V, the output voltage and oscillation frequency are stabilized at
VDD
≥
1.8V. Therefore, a VDD of more than 1.8V is recommended when VDD is supplied from VIN or other power sources.
With the XC9105 series, the CE pin also serves as a PWM/PFM switching pin. In operation, PWM control is selected when the voltage at the CE pin is
more than VDD -0.2V. On the other hand, PWM/PFM automatic switching control at a duty = 25% is selected when the voltage at the CE pin is less than
VDD -1.0V and more than VCEH.
The overcurrent limit circuit of this IC is designed to monitor the ripple voltage so please select your external components carefully to prevent VLMT
being reached under low temperature conditions as well as normal operating conditions. Following current limiter circuit operations, which in turn causes
the IC's operations to stop, the operations of the IC can be returned to normal with a toggle of the CE pin or by turning the power supply back on.
CE "Low" Current
ICEL
CE "High" Current
ICEH
EXT "Low" ON Resistance
REXTL
EXT "High" ON Resistance
REXTH
PWM "Low" Voltage
VPWML
PWM "High" Voltage
VPWMH
VDD - 0.2
CE "Low" Voltage
VCEL
CE "High" Voltage
VCEH
Same as IDD1
Soft-start Time
TSS
Efficiency
EFFI
-
85
Overcurrent SENSE Voltage
VLMT
220
300
Maximum Duty Ratio
MAXDTY
Oscillation Frequency
FOSC
Stand-by Current
ISTB
Supply Current 2
IDD2
Supply Current 1
IDD1
62
Operation Holding Voltage
VHLD
Recommended Circuit using 2SD1628,
-
-
4
Oscillation Start Voltage
VST2
-
-
0.8
V
Operation Start Voltage
VST1
Recommended Circuit using 2SD1628,
-
SYMBOL
VOUT
Power Supply Voltage Range
VDD
FB Control Voltage
VFB
Output Voltage
XC9103/04/05 Series
Ceramic Cap. Compatible
Step-Up DC/DC Converters
-
Semiconductor Ltd.
5