XC9236 Torex Semiconductor, XC9236 Datasheet - Page 13

• Manufacturer Part Number: XC9236
• Description: 600mA Driver Tr. Built-In, Synchronous Step-Down DC/DC Converters
• Manufacturer: Torex Semiconductor

■OPERATIONAL DESCRIPTION (Continued)
＜Soft Start＞
■FUNCTION CHART
The XC9235A/XC9236A/XC9237A/XC9235C/XC9236C/XC9237C series provide 1.0ms (TYP). The XC9225B/XC9236B/XC9237B series
provide 0.25ms (TYP). Soft start time is defined as the time to reach 90% of the output setting voltage when the CE pin is turned on.
Soft start time is available in two options via product selection.
Note on CE/MODE pin voltage level range
(*1) H level: 0.65V < H level < V
(*2) M level: 0.65V < M level < V
(*3) L level: 0V < L level < 0.25V
VOLTAGE LEVEL
H level: V
M Level
CE/MODE
H Level
L Level
(*3)
(*1)
(*2)
IN
– 0.25V < H level < V
PWM Fixed Control
Synchronous
Stand-by
XC9235
IN
━
IN
V (for XC9235/XC9236)
- 1.0V (for XC9237)
IN
(for XC9237)
OPERATIONAL STATES
Automatic Switching
Synchronous
PWM/PFM
Stand-by
XC9236
━
Automatic Switching
PWM Fixed Control
Synchronous
Synchronous
PWM/PFM
Stand-by
XC9237
XC9235/XC9236/XC9237
90% of setting voltage
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Series