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XC9511 Datasheet(PDF) 6 Page - Torex Semiconductor

Part No. XC9511
Description  Synchronous Step-Down DC/DC Converter with built-in LDO Regulator in parallel plus Voltage Detector
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Maker  TOREX [Torex Semiconductor]
Homepage  http://www.torex.co.jp
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XC9511 Datasheet(HTML) 6 Page - Torex Semiconductor

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Synchronous Step-Down DC/DC Converter with built-in LDO Regulator in parallel plus Voltage Detector
Preliminary
! TEST CIRCUITS
Circuit
1
Supply Current
Circuit
2
Output Voltage (VR), Load Regulation, Dropout Voltage,
Maximum Output Current
Circuit
3
Output Voltage (DC/DC), Oscillation Frequency,
Circuit
4
Minimum Duty Cycle, Maximum Duty Cycle
U.V.L.O. Voltage, Soft start Time
Maximum Output Current, Efficiency,
(PFM Duty Cycle)
Circuit
5
Lx ON Resistance
Circuit
6
Current Limit 1 (DC/DC)
XC9511 Series
Semiconductor Ltd.
CIN : 1.0uF
(ceramic)
A
1
2
3
4
8
7
5
6
AVDD
PVDD
AGND
LX
DCOUT
VROUT
VDOUT
PGND
DCOUT : VIN or GND
V
IROUT
V
CIN :
4.7uF
(ceramic)
CL:1.0uF(ceramic,
VROUT≧ 1.5V)
2.2uF(ceramic,
VROUT<1.5V)
1
2
3
4
8
7
5
6
AVDD
PVDD
AGND
LX
DCOUT
VROUT
VDOUT
PGND
CIN 1 2: 4.7uF
(ceramic)
V
CL:10uF
(ceramic)
V
L
IDOUT
1
2
3
4
8
7
5
6
AVDD
PVDD
AGND
LX
DCOUT
VROUT
VDOUT
PGND
Fosc
300kHz
600kHz
1.2MHz
L
22uH(CDRH6D38,
SUMIDA)
10uH(CDRH5D28,
SUMIDA)
4.7uH(CDRH4D28C,
SUMIDA)
Probe
A
V
200
CIN : 1.0uF
(ceramic)
1
2
3
4
8
7
5
6
AVDD
PVDD
AGND
LX
DCOUT
VROUT
VDOUT
PGND
Probe
V
A
CIN : 1.0uF
(ceramic)
1
2
3
4
8
7
5
6
AVDD
PVDD
AGND
LX
DCOUT
VROUT
VDOUT
PGND
CIN : 4.7uF
(ceramic)
ILX
1
2
3
4
8
7
5
6
AVDD
PVDD
AGND
LX
DCOUT
VROUT
VDOUT
PGND
Probe
A
Data Sheet
6


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