參數(shù)資料
型號(hào): XC9105
廠(chǎng)商: TOREX SEMICONDUCTOR LTD.
英文描述: Step-Up DC/DC Converters
中文描述: 升壓型DC / DC轉(zhuǎn)換器
文件頁(yè)數(shù): 4/19頁(yè)
文件大?。?/td> 205K
代理商: XC9105
"
ELECTRICAL CHARACTERISTICS
XC9103B092MR, XC9104B092MR, XC9105B092MR
XC9103D092MR, XC9104D092MR, XC9105D092MR
PARAMETER
Output Voltage
(FOSC=180 (kHz)
Ta=25
O
C
UNITS
V
*1
*1
*3
*2
*2
Test Conditions: Unless otherwise stated, CL: ceramic capacitor, recommended MOS FET should be connected.
VOUT=3.30 (V), VIN=2.00 (V), IOUT=170 (mA)
"
NOTES
*1
*2
*3
5
5
-0.1
Same as IDD2, FB=VDD
Same as IDD2, FB=0V
4
4
5
5
5
5
1
1
1
6
1
1
4
5
4
4
-
3
4
3
μ
A
μ
A
μ
A
μ
A
V
V
V
V
%
mV
%
mS
Same as IDD1, VEXT=0.4V
Same as IDD2, CE=VDD
Same as IDD2, CE=0V
V
V
V
V
V
μ
A
μ
A
μ
A
Operation Start Voltage
VST1
-
Recommended Circuit using XP161A1355
Same as IDD1
Same as IDD1
Same as IDD1, VEXT=VOUT-0.4V
Output Voltage Range
VOUTSET
1.5
30.0
-
0.9
-
-
0.7
0.8
VHLD
Operation Holding Voltage
Recommended Circuit using 2SD1628,
IOUT=1.0mA
Same as VST2, VDD=3.300V
Same as IDD1, FB=1.2V
Same as IDD1, CE=0V
Same as IDD1
Same as IDD1
No Load (XC9104B/D, 9105B/D)
Step input to FB ( Pulse width:2.0
μ
S or more)
0.882
1.8
CIRCUIT
1
2
4
VLMT
Overcurrent SENSE Voltage
170
250
330
MAX.
3.366
CONDITIONS
FB Control Voltage
Power Supply Voltage Range
MIN.
3.234
TYP.
3.300
VIN=VOUTSET
×
0.6, VDD=3.3V
IOUT=10mA, Using 2SD1628
Oscillation Start Voltage
VST2
-
-
-
-
Supply Current 1
Supply Current 2
17
-
180
81
28
-
Stand-by Current
Oscillation Frequency
V
0.900
-
0.918
10
XC9103/04/05 Series
Ceramic Cap. Compatible
Step-Up DC/DC Converters
45
64
24
4
1.0
207
87
36
153
75
kHz
%
20
85
10.0
-
-
-
Recommended Circuit using 2SD1628,
IOUT=1.0mA
No external connections
CE connected to VDD, Voltage applied, FB=0V
Maximum Duty Ratio
PWM Duty Ratio
FOSC
MAXDTY
PFMDTY
VFB
VDD
ISTB
IDD1
IDD2
20.0
-
5.0
0.65
EXT = Low level voltage
(XC9103B, 9104B, 9105B)
Soft-start Time
CE "High" Voltage
TSS
VCEH
Efficiency
EFFI
CE "Low" Voltage
PWM "High" Voltage
VCEL
VPWMH
-
0.20
PWM "Low" Voltage
EXT "High" ON Resistance
VPWML
REXTH
36
24
0.1
-0.1
0.1
VDD - 1.0
IOUT=1.0mA (XC9105B/D)
IOUT=1.0mA (XC9105B/D)
-
-
VDD - 0.2
EXT "Low" ON Resistance
CE "High" Current
REXTL
ICEH
-
-
16
-
-
-
-
24
-
-
CE "Low" Current
FB "High" Current
FB "Low" Current
ICEL
IFBH
IFBL
-
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.
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.
-
SYMBOL
VOUT
Semiconductor Ltd.
4
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XC9105B091MR 制造商:TOREX 制造商全稱(chēng):Torex Semiconductor 功能描述:Ceramic Capacitor Compatible, Step-up DC/DC Controllers
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