HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.2.2_01
S-1135 Series
4. Discharge shunt function (S-1135 Series A / B / E / F type)
The S-1135 Series A / B / E / F type has a built-in discharge shunt circuit to discharge the output capacitance.
When the ON / OFF pin is set to OFF level, turns the output transistor off, and turns the discharge shunt circuit on so
that the output capacitor discharges. These types allow the VOUT pin to reach the VSS level faster than the S-1135
Series C / D / G / H type that does not have a discharge shunt circuit.
S-1135 Series
Output transistor : OFF
*1
VOUT
VIN
Discharge shunt circuit
: ON
Output
capacitor
*1
(CL)
ON / OFF
ON / OFF circuit
ON / OFF pin : OFF
Current flow
GND
VSS
*1. Parasitic diode
Figure 23
22
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