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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, F type)

provide 0.32ms (TYP) however, when VOUT 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.

■FUNCTION CHART

CE/MODE

VOLTAGE

LEVEL

OPERATIONAL STATES

XCL205

XCL206

XCL207

H Level (*1)

Synchronous

PWM Fixed

Control

Synchronous

PWM/PFM

Automatic Switching

Synchronous

PWM/PFM

Automatic Switching

M Level (*2)

━

━

Synchronous

PWM Fixed Control

L Level (*2)

Stand-by

Stand-by

Stand-by

tSS

VCEH

0V

0V

VOUT

90% of setting voltage

Note on CE/MODE pin voltage level range

(*1) H level: 0.65V < H level < 6V (for XCL205/XCL206)

H level: VIN – 0.25V < H level < VIN (for XCL207)

(*2) M level: 0.65V < M level < VIN - 1.0V (for XCL207)

(*3) L level: 0V < L level < 0.25V