Data Sheet
THEORY OF OPERATION
ADP195
VIN
GND
EN
ADP195
REVERSE
POLARITY
PROTECTION
LEVEL SHIFT
AND SLEW
RATE CONTROL
VOUT
quiescent current device with a nominal 4 MΩ pull-down
resistor on its enable pin (EN).
The reverse current protection circuitry prevents current flow
backward through the ADP195 when the output voltage is greater
than the input voltage. A comparator senses the difference
between the input and output voltages. When the difference
between the input voltage and output voltage exceeds 75 mV,
the body of the pFET is switched to V OUT and is turned off or
Figure 21. Functional Block Diagram
The ADP195 is a high-side PMOS load switch. It is designed for
supply operation between 1.1 V to 3.6 V. The PMOS load switch
is designed for low on resistance, 65 mΩ at V IN = 1.8 V and
opened; that is, the gate is connected to V OUT .
The packaging is a space-saving 1.0 mm × 1.0 mm, 4-ball WLCSP.
The ADP195 is also available in a 2 mm × 2 mm × 0.55 mm,
0.65 mm pitch LFCSP.
supports greater than 1 A of continuous current. It is a low
Rev. C | Page 9 of 12
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