XCL205/XCL206/XCL207 Series
■ OPERATIONAL DESCRIPTION (Continued)
< Soft Start >
The XCL205/XCL206/XCL207 series (A, C type) provide 0.9ms (TYP). The XCL205/XCL206/XCL207 series (B, G type)
provide 0.32ms (TYP) however, when V OUT is less than 1.8V, provide 0.25ms (TYP.). Soft start time is defined as the time to
reach 90% of the output nominal voltage when the CE pin is turned on.
t SS
V CEH
0V
V OUT
0V
■ FUNCTION CHART
CE/MODE
OPERATIONAL STATES
90% of setting voltage
VOLTAGE
LEVEL
XCL205
Synchronous
XCL206
Synchronous
XCL207
Synchronous
H Level
M Level
L Level
(*1)
(*2)
(*2)
PWM Fixed
Control
Stand-by
PWM/PFM
Automatic Switching
Stand-by
PWM/PFM
Automatic Switching
Synchronous
PWM Fixed Control
Stand-by
Note on CE/MODE pin voltage level range
(*1) H level: 0.65V < H level < 6V (for XCL205/XCL206)
H level: V IN – 0.25V < H level < V IN (for XCL207)
(*2) M level: 0.65V < M level < V IN - 1.0V (for XCL207)
(*3) L level: 0V < L level < 0.25V
14/25
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