XC6371/6372/6373
Series
■ELECTRICAL CHARACTERISTICS (Continued)
VOUT=5.0V, FOSC=100kHz
Ta=25℃
XC6371/72E501PR
PARAMETER
SYMBOL
VOUT
CONDITIONS
MIN.
4.875
10
TYP.
5.000
-
-
MAX.
5.125
-
UNITS
Output Voltage
V
V
V
Maximum Input Voltage
Operation Start Voltage
VIN
VST1
External Components Connected, IOUT=1mA
No external components,
Apply voltage to VOUT, Lx:10kΩpull-up to 5V
VIN=VOUT×0.8, IOUT=0mA(*1)
Same as VST2,
-
0.90
Oscillation Start Voltage
No Load Input Voltage
Supply Current 1
VST2
IIN
-
-
-
-
0.80
25.7
V
12.8
80.2
μA
μA
IDD1
133.8
Apply output voltage×0.95 to VOUT
Same as VST2,
Apply output voltage×1.1 to VOUT
Supply Current 2
IDD2
-
-
8.2
1.4
16.5
2.4
μA
Lx Switch-On
Resistance
RSWON
Same as IDD1, VLX=0.4V
Ω
Lx Leak Current
ILXL
FOSC
MAXDTY
PFMDTY
No external components, VOUT =VLX=10V
Same as IDD1, Measuring of Lx waveform
Same as IDD1, Measuring of Lx waveform
Same as IDD1, Measuring of Lx waveform
Same as IDD1, Apply output voltage to Lx,
Voltage required to produce FOSC×2
-
-
1.0
115
92
μA
kHZ
%
Oscillation Frequency
Maximum Duty Ratio
PFM Duty Ratio (*4)
85
80
10
100
87
17
25
%
Lx Limit Voltage
VLxLMT
0.7
-
1.3
V
Efficiency
Slow-Start Time
EFFI
TSS
-
85
10.0
-
%
ms
4.0
20.0
NOTE: Unless otherwise stated, connect VDD to VOUT, VIN=VOUT×0.6, IOUT=50mA. See Typical Application Circuits, Circuit 3.
*1: The Schottky diode (SD) must be type MA2Q735, with reverse current (IR)<1.0μA at reverse voltage (VR)=10.0V.(XC6372E)
*2: "Supply current 1" is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically
operates which results in less average power consumption. The current actually provided by external VIN source is represented by "No
Load Input Current (IIN)".
*3: When PWM operates at PWM Mode.
*4: When PFM operates at PFM Mode.(XC6372E)
*5: When the VDD and VOUT pins are independently used, the voltage range at the VDD pin should be 2.2V to 10V. The IC operates from
VDD=0.8V. However, output voltage and oscillation frequency are properly stabilized when VDD=2.2V or higher.
591
TOREX [ Torex Semiconductor ]
