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XC9511 Datasheet(PDF) 4 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) 4 Page - Torex Semiconductor

 
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Synchronous Step-Down DC/DC Converter with built-in LDO Regulator in parallel plus Voltage Detector
Preliminary
! ELECTRICAL CHARACTERISTICS
XC9511xxxCSx
# Common Characteristics
# DC/DC Converter (1.5V product)
# Regulator (3.3V product)
%
ppm/
OC
mS
mS
UNITS
V
MHz
%
±100
-2
ppm /
OC
Output Voltage
! VROUT
IROUT=30mA
-40
OC<Topr<85OC
-
Temperature Characteristics
(
!Topr"VROUT)
60
-
12
dB
Ripple Rejection Rate
PSRR
VIN={VOUT(T) + 1.0} VDC + 0.5Vp-pAC
IROUT=30mA, f=1kHz
-
30
-
7
mA
Short-Circuit Current
ISHORT
VROUT=VSS
-
600
-
7
mA
Current Limit
ILIM2
VROUT=VROUT(E) x 0.9
480
0.05
0.25
2
%/V
Line Regulation
! VROUT
IROUT=30mA
-
(
!VIN"VROUT)
VROUT(T)+1V<VIN<6V
100
200
2
mV
Dropout Voltage 2
Vdif 2
IROUT=200mA
-
50
110
2
mV
Dropout Voltage 1 (note 5)
Vdif 1
IROUT=100mA
-
15
50
2
mV
Load Regulation
! VROUT
1mA<IROUT<100mA
-
--
2
mA
Maximum Output Current
IMAX2
400
3.300
3.366
2
V
Output Voltage
VROUT(E)
IROUT=30mA
3.234
Topr=25
OC
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
TEST
CIRCUIT
UNITS
3
Soft Start Time
TSS
Connected to the external components,
CE=0V
"VIN, IDOUT=1mA
25
10
3
Temperature Characteristics
(
!Topr"DCOUT)
IDOUT=30mA
-40
OC<Topr<85OC
-
±100
-
6
Efficiency (note 3)
EFFI
Connected to the external components,
IDOUT=100mA
-90-
3
1.0
--
3
mA
Maximum Output Current
IMAX1
Connected to the external components
800
0.05
1.00
11
µA
LX SW 'Low' Leak Current
(note 11)
IleakL
VIN=6.0V, LX=CE=0V
-
0.05
1.00
11
µA
LX SW 'High' Leak Current
(note 11)
IleakH
VIN=LX=6.0V, CE=0V
-
0.5
0.9
3
LX SW 'Low' ON Resistance
RLXL
Connected to the external components,
VIN=5.0V
-
1.40
1.78
3
V
4
PFM Duty Ratio
*XC9511D/E/F
PFMDUTY
Connected to the external components,
No Load
21
30
38
3
%
--
0
3
Maximum Duty Ratio
MAXDUTY
DCOUT=0V
100
-
-
4
TEST
CIRCUIT
6.0
3
Output Voltage
DCOUT(E)
Connected to the external components,
IDOUT=30mA
1.470
1.500
1.530
V
%
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
1.02
1.20
1.38
-
Input Voltage Range
VIN
2.4
Supply Current 2
IDD2
VIN=CE=5.0V, DCOUT=0V
-
TEST
CIRCUIT
1
310
1
300
360
UNITS
µΑ
µΑ
CONDITIONS
MIN.
TYP.
MAX.
Topr=25
OC
VIN=CE=DCOUT=5.0V
-
250
-
Current Limit (note 8)
ILIM1
Output Voltage
! DCOUT
10
Latch Time (note 4, 9)
Tlat
Connected to the external components,
VIN=CE=5.0V,
Short DCOUT by 1
Ω resistor
-8
25
Oscillation Frequency
FOSC
Connected to the external components,
IDOUT=10mA
Minimum Duty Ratio
MINDUTY
DCOUT=VIN
U.V.L.O Voltage (note 1)
VUVLO
Connected to the external components
1.00
LX SW 'High' ON Resistance
(note 2)
RLXH
5
DCOUT=0V, LX=VIN-0.05V
-
0.5
1.0
A
1.1
-
XC9511 Series
Supply Current 1
IDD1
PARAMETER
SYMBOL
Semiconductor Ltd.
Data Sheet
4


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