XC9128 Datasheet, PDF (5/14 Pages) Torex Semiconductor – 1A Driver Transistor Built-In, Step-Up DC/DC Converters

XC9128/XC9129
Series
˙ELECTRICAL CHARACTERISTICS
XC9128/XC9129 Series
PARAMETER
SYMBOL
CONDITIONS
Input Voltage
FB Voltage
Output Voltage Setting Range
Operation Start Voltage
Oscillation Start Voltage
Operation Hold Voltage
VIN
VFB
VOUTSET
VST1
VST2
VHLD
-
V_OUT=V_IN=3.3V, Vpull=3.3V, V_FO=0V
Voltage to start oscillation during
FB=0.46V → 0.44V
-
Connect to external components,
R_L =1kΩ
Connect to external components,
R_L =33Ω
Voltage to start oscillation during
V_IN=0V → 1V
Connect to external components, R_L=1kΩ
Supply Current 1
Supply Current 2
Input Pin Current
Stand-by Current
IDD1
IDD2
I_BAT
I_STB
V_IN = V_OUT =3.3V, FB=V_FB×0.9
V_IN = V_OUT =3.3V
FB=V_FB×1.1 (Oscillation stops),
MODE=0V
V_IN =3.3V, V_OUT =1.8V, EN=0V
V_IN = V_OUT =3.3V, EN=0V
Oscillation Frequency
f_OSC
V_IN = V_OUT =3.3V, V_FO=0V, FB=V_FB×0.9
Maximum Duty Cycle
MAXDTY V_IN = V_OUT =3.3V, V_FO=0V, FB=V_FB×0.9
Minimum Duty Cycle
PFM Switching Current
Efficiency ^(*2)
LX SW "Pch" ON Resistance
LX SW "Nch" ON Resistance
LX Leak Current
Current Limit ^(*5)
Integral Latch Time ^(*6)
Soft-Start Time 1
Soft-Start Time 2
Soft-Start Time 3
Thermal Shutdown
Temperature
Hysteresis Width
Output Voltage Drop
Protection ^(*6)
FO Output Current ^(*7)
FO Leak Current ^(*7)
MINDTY
IPFM
EFFI
RLxP
RLxN
ILXL
ILIM
TLAT
TSS1
TSS2
TSS3
TTSD
V_IN = V_OUT =3.3V, V_FO=0V, FB=V_FB×1.1
Connect to external components,
MODE=0V, I_OUT=10mA
Connect to external components,
I_OUT=100mA
V_IN=V_OUT+50mV,
FB=V_FB×1.1, MODE=0V ^(*3)
V_IN=3.3V, V_OUT=3.3V,Lx=50mV,
FB=V_FB×0.9 ^(*4)
V_OUT=VLx=V_IN=3.3V, EN=0V,
FB=0V, MODE=0V
V_OUT>2.5V
Time to stop oscillation during
RL=33Ω → 3.3Ω, V_FO=L → H
Time to start oscillation during V_EN=0V
→ V_IN at V_IN = V_OUT =3.3V, V_FO=0V,
FB=V_FB×0.95
V_IN = V_OUT =3.3V, V_FO=0V, FB> V_FB×0.95
Time to start oscillation during
V_AEN/=V_IN→0V.
V_IN = V_OUT =3.3V, V_FO=0V, FB<V_FB×0.8
Time to start oscillation during
V_AEN/=V_IN→0V
-
THYS
LVP
IFO_OUT
IFO_Leak
-
V_IN =3.3V
Voltage to stop oscillation during
V_OUT=1.56V→1.3V
V_IN =V_OUT=3.3V, V_FO=0.25V
V_IN = V_OUT =3.3V, EN=0V ,V_FO=1V
MIN.
-
0.44
1.8
-
-
-
-
-
-
-
-
1.02
85
-
-
-
-
-
-
1.2
-
1.7
-
1.7
-
-
1.3
1.3
-
TYP.
-
MAX.
6.0
Topr=25 ^oC
UNITS CIRCUIT
V
-
0.45 0.46
V
ᶆ
-
5.3
V
ᶃ
-
0.8
V
ᶃ
-
0.9 ^(*1)
V
ᶃ
0.8
-
V
ᶃ
0.7
-
V
ᶃ
3
6
mA
ᶄ
30
80 ЖA
ᶄ
2
10 ЖA
ᶅ
2
10 ЖA
ᶄ
1.20 1.38 MHz
ᶆ
92
96
%
ᶆ
-
0
%
ᶆ
250 400 mA
ᶃ
93
-
%
ᶃ
0.20 0.35 ^(*1) Ω
ᶇ
0.20 ^(*1) 0.35 ^(*1)
Ω
ᶉ
1
-
ЖA
ᶇ
1.5
2.0
A
ᶃ
3.5
-
ms
ᶃ
5.3 10.5 ms
ᶆ
0.02 0.04 ms
ᶆ
5.3 10.5 ms
ᶆ
150
-
o_C
-
20
-
o_C
-
1.48 1.56
V
ᶈ
1.7
2.2 mA
ᶆ
0
1
ЖA
ᶆ
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