XC6215 TOREX [Torex Semiconductor], XC6215 Datasheet - Page 13

• Manufacturer Part Number: XC6215
• Description: 0.8uA Low Power Consumption Voltage Regulator with ON/OFF Switch
• Manufacturer: TOREX [Torex Semiconductor]

■NOTES ON USE
■OPERATIONAL EXPLANATION
1. Please use this IC within the stated absolute maximum ratings. The IC is liable to malfunction should the ratings be exceeded.
2. Where wiring impedance is high, operations may become unstable due to noise and/or phase lag depending on output
3. As for the XC6215 series, internally achieved phase compensation makes a stable operation of the IC possible even when
●XC6215B Series (As for the XC6215P Series, with no CE pin)
<Short Protection Circuit>
The XC6215 series’ regulator offers circuit protection by means of a built-in foldback circuit. When the load current reaches the
current limit level, the fixed current limiter circuit operates and output voltage drops. As a result of this drop in output voltage,
the foldback circuit operates, the output voltage drops further and output current decreases. When the output pin is shorted, a
current of about 50mA flows.
<CE Pin>
The IC's internal circuitry can be operated or shutdown via the signal from the CE pin with the XC6215B series. In shutdown
mode, output at the V
Active/No Pull-Down”, operations will become unstable with the CE pin open. We suggest that you use this IC with either a V
voltage or a V
fixed and the IC will operate normally. However, supply current may increase as a result of through current in the IC's internal
circuitry.
<Output Voltage Control>
The voltage divided by resistors R1 & R2 is compared with the internal reference voltage by the error amplifier. The P-channel
MOSFET, which is connected to the V
is controlled and stabilized by a system of negative feedback. The current limit circuit and short protect circuit operate in relation
to the level of output current. Further, the IC's internal circuitry can be operated or shutdown via the CE pin's signal.
current.
there is no output capacitor (C
about 0.1 to 1.0μF be connected between the V
an undershoot or overshoot, we recommend that the output capacitor (C
V
possible.
OUT
pin and the V
SS
voltage input at the CE pin. If this IC is used with the correct specifications for the CE pin, the operational logic is
SS
OUT
pin. However, please wire the input capacitor (C
pin will be pulled down to the V
CE
L
). In order to stabilize the V
OUT
pin, is then driven by the subsequent output signal. The output voltage at the V
ON/OFF
Control
-
+
Error
Amp
IN
Reference
pin and the V
Voltage
each circuit
SS
Current
Limit
level via R1 & R2. Note that the XC6215 series’ regulator is “High
IN
’s voltage level, we recommend that an input capacitor (C
SS
R1
R2
pin. Moreover, during transient response, so as to prevent
IN
L
) and the output capacitor (C
) of about 0.1 to1.0μF be connected between the
V
V
V
SS
IN
OUT
L
) as close to the IC as
XC6215
13/31
Series
OUT
IN
) of
pin
IN