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XC9261B13CER-G Datasheet(PDF) 6 Page - Torex Semiconductor

Part # XC9261B13CER-G
Description  COT Control, 1.5A Synchronous Step-Down DC/DC Converters
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Manufacturer  TOREX [Torex Semiconductor]
Direct Link  http://www.torex.co.jp
Logo TOREX - Torex Semiconductor

XC9261B13CER-G Datasheet(HTML) 6 Page - Torex Semiconductor

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XC9260/XC9261Series
ELECTRICAL CHARACTERISTICS
XC9260/XC9261 Series
Ta=25℃
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
CIRCUIT
Output Voltage
VOUT
When connected to external components,
IOUT=30mA
<E-1>
<E-2>
<E-3>
V
Operating Voltage Range
VIN
-
2.7
-
5.5
V
Maximum Output Current
IOUTMAX
When connected to external components
(*1),
VIN =<C -1>
1500
-
-
mA
UVLO Voltage
(*2)
VUVLO
VOUT=0.6V,Voltage which Lx pin holding “L” level
(*6)
1.35
2.0
2.68
V
fOSC=1.2MHz
-
15.0
25.0
Quiescent Current
(XC9261)
Iq
VOUT =VOUT(T) × 1.1V
fOSC=3.0MHz
-
25.0
40.0
μ
A
fOSC=1.2MHz
-
250
450
Quiescent Current
(XC9260)
Iq
VOUT =VOUT(T) × 1.1V
fOSC=3.0MHz
-
400
825
μ
A
Stand-by Current
ISTB
VCE=0.0V
-
0.0
1.0
μ
A
Minimum ON time
tONmin
When connected to external components,
VIN = <C-1>, IOUT = 1mA
<E-5>
<E-6>
<E-7>
ns
Thermal shutdown
TTSD
-
-
150
-
Thermal shutdown
hysteresis
THYS
-
-
30
-
Lx SW ”H” ON Resistance
RLXH
VOUT=0.6V, ILX=100mA
(*3)
-
0.14
0.28
Lx SW ”L” ON
Resistance
(*4)
RLXL
VOUT=VOUT(T) V × 1.1, ILX=100mA
(*3)
-
0.10
0.20
Lx SW ”H” Leakage Current
ILeakH
VIN=5.5V, VCE=0V, VOUT=0V, VLX=0.0V
-
0.0
1.0
μ
A
Lx SW ”L” Leakage Current
IleakL
VIN=5.5V, VCE=0V, VOUT=0V, VLX=5.5V
-
0.0
30.0
μ
A
Current Limit
(*5)
ILIMH
VOUT=0.6V, ILx until Lx pin oscillates
2.5
3.0
4.5
A
Output Voltage
Temperature
Characteristics
∆VOUT/
(VOUT・∆Topr)
IOUT=30mA, -40℃≦Topr≦105℃
-
±100
-
ppm/℃
CE ”H” Voltage
VCEH
VOUT=0.6V, Applied voltage to VCE,
Voltage changes Lx to “H” level
(*6)
1.40
-
VIN
V
CE ”L” Voltage
VCEL
VOUT=0.6V, Applied voltage to VCE,
Voltage changes Lx to “L” level
(*6)
VSS
(*7)
-
0.30
V
CE ”H” Current
ICEH
VIN=5.5V, VCE=5.5V, VOUT=0.0V
-0.1
-
0.1
μ
A
CE ”L” Current
ICEL
VIN=5.5V, VCE=0.0V, VOUT=0.0V
-0.1
-
0.1
μ
A
Soft-start Time
tSS
VCE=0.0V → 5.0V VOUT=VOUT(T)V × 0.9
After "H" is fed to CE, the time by when clocks are
generated at Lx pin.
0.10
0.30
0.50
ms
Short Protection
Threshold
Voltage (Type B)
VSHORT
Sweeping VOUT, VOUT voltage which Lx becomes “L”
level
(*6)
0.17
0.27
0.37
V
CL Discharge (Type B)
RDCHG
VCE=0V, VOUT=4.0V
50
210
300
Unless otherwise stated, VIN=5V, VCE=5V, VOUT(T)=Nominal Value,
NOTE:
(*1) When the difference between the input and the output is small, 100% duty might come up and internal control circuits keep P-ch driver turning
on even though the output current is not so large.
If current is further pulled from this state, output voltage will decrease because of P-ch driver ON resistance.
(*2) Including UVLO detect voltage, hysteresis operating voltage range for UVLO release voltage.
(*3) RLXH= (VIN - Lx pin measurement voltage) / 100mA, RLXL= Lx pin measurement voltage / 100mA
(*4) Design value for the XC9261 series.
(*5) Current limit denotes the level of detection at peak of coil current.
(*6) "H"=VIN ~ VIN - 1.2V, "L"=- 0.1V ~ + 0.1V
(*7) AGND in the case of USP-6C.


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