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XC9501 Datasheet(PDF) 7 Page - Torex Semiconductor

Part # XC9501
Description  2ch. Step-up DC/DC Controller ICs.
PDF  24 Pages
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Manufacturer  TOREX [Torex Semiconductor]
Direct Link  http://www.torex.co.jp
Logo TOREX - Torex Semiconductor

XC9501 Datasheet(HTML) 7 Page - Torex Semiconductor

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Notes
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! Typical Application Circuit
1 VDD connected to VOUT1
2 VDD connected to VIN
EFFI={ [ (Output voltage) x (Output current) ] / [ (Input voltage) x (Input Current) ] } x 100
Although the IC's step-up operations start from a V DD of 0.8V, the output voltage and switching frequency are stabilized
at VDD
≥ 2.0V. Therefore, a VDD of more than 2.0V is recommended when VDD is supplied from VIN or oTher power
sources.
Please be careful not to exceed the breakdown voltage level of the peripheral parts.
Although the IC's switching operations start from a V IN of 0.9V, the IC's power supply pin (VDD) and output voltage
monitor pin (FB2) should be connected to V OUT2. With operations from V IN=0.9V, the 1st channel's (output 1) E N1 pin
should be set to disable. Once ouput voltage V OUT2 is more than 2.0V, the EN1 pin should be set to enable.
Although the IC's switching operations start from a V IN of 0.9V, the IC's power supply pin (VDD) and output voltage
monitor pin (FB1) should be connected to V OUT1. With operations from V IN=0.9V, the 2nd channel's (output 2) E N2 pin
should be set to disable. Once ouput voltage V OUT1 is more than 2.0V, the EN2 pin should be set to enable.
XC9501 Series
2ch. Step-up DC/DC Controller ICs.
Tr2
CIN
Tr1
L2
RFB12
CFB1
L1
VIN
1 EXT1
2 VDD
3 FB1
FB2 8
GND 9
EXT2 10
4 PWM1
PWM2 7
5 EN1
EN2 6
RFB21
RFB22
CFB2
+
VOUT2
SD2
CL2
RFB11
SD1
VPWM2
VEN2
VEN1
VPWM1
CL1
+
VOUT1
L1
VIN
1 EXT1
2 VDD
3 FB1
FB2 8
GND 9
EXT2 10
4 PWM1
PWM2 7
5 EN1
EN2 6
RFB21
RFB22
CFB2
+
VOUT2
SD2
CL2
RFB11
SD1
VPWM2
VEN2
VEN1
VPWM1
CL1
+
VOUT1
Tr2
CIN
Tr1
L2
RFB12
CFB1
L1
VIN
1 EXT1
2 VDD
3 FB1
FB2 8
GND 9
EXT2 10
4 PWM1
PWM2 7
5 EN1
EN2 6
RFB21
RFB22
CFB2
+
VOUT2
SD2
CL2
RFB11
SD1
VPWM
VEN2
VEN1
VPWM1
CL1
+
VOUT1
L1
VIN
1 EXT1
2 VDD
3 FB1
FB2 8
GND 9
EXT2 10
4 PWM1
PWM2 7
5 EN1
EN2 6
RFB21
RFB22
CFB2
+
VOUT2
SD2
CL2
RFB11
SD1
VPWM2
VEN2
VEN1
VPWM1
CL1
+
VOUT1
CDD
7



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