xc6221 TOREX SEMICONDUCTOR LTD., xc6221 Datasheet - Page 9

• Manufacturer Part Number: xc6221
• Description: Xc6221 Low Esr Caps Compatible Highe Speed Ldo Voltage Regulators With On/off Switch
• Manufacturer: TOREX SEMICONDUCTOR LTD.

■NOTES ON USE
■OPERATIONAL EXPLANATION (Continued)
<Current Limiter, Short-Circuit Protection>
<CE Pin>
1
2. Where wiring impedance is high, operations may become unstable due to noise and/or phase lag depending on output
.
The XC6221 series’ foldback circuit operates as an output current limiter and a short protection of the output pin. When
the load current reaches the current limit level, the fixed current limiter circuit operates and output voltage drops. When
the output pin is shorted to the V
The IC's internal circuitry can be shutdown via the signal from the CE pin with the XC6221 series. In shutdown mode,
output at the V
auto-discharge resistor is connected in parallel to R1 and R2 while the power supply is applied to the V
Therefore, time until the V
the CE pin is open. If this IC is used with the correct output voltage for the CE pin, the logic is fixed and the IC will
operate normally. However, supply current may increase as a result of through current in the IC's internal circuitry when
medium voltage is input.
Please use this IC within the stated absolute maximum ratings. The IC is liable to malfunction should the ratings be
exceeded.
current. Please wire the input capacitor (C
OUT
pin will be pulled down to the V
OUT
pin reaches the V
SS
level, a current of about 30mA flows.
IN
) and the output capacitor (C
SS
level becomes short. The output voltage becomes unstable, when
SS
level via R1 & R2. However, as for the XC6221B series, the C
L
) as close to the IC as possible.
XC6221
Series
IN
9/23
pin.
L