XC9140 Series
■ ELECTRICAL CHARACTERISTICS (Continued)
XC9140Axxx types (types other than XC9140Axx1), XC9140Bxxx types (types other than XC9140Bxx1)
Ta=25˚C
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
V
CIRCUIT
Input Voltage
VBAT
-
-
-
5.5
VPULL=1.5V, Voltage to start oscillation
while VOUT is decreasing
(*2)
Output Voltage
Operation Start Voltage
Operation Hold Voltage
Supply Current2
VOUT(E)
E1
-
V
V
①
②
②
③
VRELEASE(E)
VST1
VHLD
Iq
IOUT=1mA
-
(*7)
VDETECT(E)
RL=1kΩ
-
-
V
(*8)
Oscillation stops,
E4
μA
VOUT=VOUT(T)+0.5V (*1)
VOUT=VOUT(T)+0.5V (*1)
VBAT=VLX=VOUT(T) (*1), VOUT=VCE=0V
VBAT=VLX=VOUT(T) (*1), VOUT=VCE=0V
IOUT=3mA
Input Pin Current2
Stand-by Current
IBAT
ISTB
ILXL
IPFM
E5
0.1
0.1
350
μA
μA
μA
mA
③
④
⑤
②
-
-
1.0
1.0
405
LX Leak Current
PFM Switching Current
295
VPULL= VRELEASE(T)+0.1V (*6)
VOUT=VOUT(T)×0.98 (*1)
,
Maximum ON Time
tONMAX
3.1
4.6
6.0
μs
①
Efficiency (*3)
Efficiency (*3)
Efficiency (*3)
EFFI
EFFI
EFFI
VOUT(T) (*1)=2.5V, IOUT=30mA
VOUT(T) (*1)=3.3V, IOUT=30mA
VOUT(T) (*1)=5.0V, IOUT=30mA
VBAT=VLX=VCE=VOUT(T)+0.5V (*1)
IOUT=200mA
-
-
-
81
85
86
-
-
-
%
%
%
②
②
②
LX SW “Pch” ON
Resistance (*4)
LX SW “Nch” ON
Resistance (*5)
,
RLXP
E3
Ω
Ω
⑦
⑧
RLXN
VBAT=VCE=3.3V, VOUT=1.7V
-
0.6
-
VBAT=VPULL= VRELEASE(T)+0.1V (*6)
VOUT=VOUT(T)×0.98 (*1)
,
,
CE “H” Voltage
CE “L” Voltage
VCEH
0.75
-
-
5.5
V
V
①
①
While VCE=0.3→0.75V,
Voltage to start oscillation
VBAT=VPULL= VRELEASE(T)+0.1V (*6)
VOUT=VOUT(T)×0.98(*1)
VCEL
GND
0.3
While VCE=0.75→0.3V,
Voltage to stop oscillation
CE “H” Current
CE “L” Current
ICEH
ICEL
VBAT=VCE=VLX=VOUT=5.5V
-0.1
-0.1
-
-
0.1
0.1
μA
μA
①
①
VBAT=VLX=VOUT=5.5V, VCE=0V
VBAT= VCE= VDETECT(E) - 0.1V (*8)
,
UVLO Current
IDQ
E6
μA
②
IOUT=0mA
VPULL= VOUT= VOUT(T)×0.98(*1),VBAT= VCE
Voltage to start oscillation while
VBAT is increasing
VRELEASE(E)
UVLO Release Voltage
E7
V
①
(*7)
VPULL= VOUT= VOUT(T)×0.98(*1),VBAT= VCE
VRELEASE(E) - Voltage to stop oscillation
while VBAT is decreasing(*7)
UVLO Hysteresis
Voltage
(*9)
VHYS(E)
0.1
0.15
0.2
V
①
Unless otherwise stated, VBAT=VCE=VRELEASE(T)+0.1V (*6)
(*1)
V
V
= Nominal Output Voltage
OUT(T)
(*2)
= Effective Output Voltage
OUT(E)
The actual output voltage value VOUT(E) is the PFM comparator threshold voltage in the IC. Therefore, the DC/DC circuit output voltage, including
the peripheral components, is boosted by the ripple voltage average value. Please refer to the characteristic example.
(*3) EFFI=[{ (Output Voltage)×(Output Current)] / [(Input Voltage)×(Input Current)}]×100
(*4) LX SW “Pch” ON resistance=(VLX-VOUT pin measurement voltage) / 200mA
(*5) The LX SW “Nch” ON resistance measurement method is shown in the measurement circuit diagram.
(*6)
V
V
V
V
= Nominal UVLO release voltage
RELEASE(T)
(*7)
(*8)
(*9)
= Actual UVLO release voltage
RELEASE(E)
=VRELEASE(E) -VHYS(E)= Actual UVLO detect voltage
DETECT(E)
= Actual UVLO hysteresis voltage
HYS(E)
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