AIC1733_15 Datasheet, PDF (9/13 Pages) Analog Intergrations Corporation – 500mA, Low Dropout Linear Regulator with Shutdown

AIC1733
BLOCK DIAGRAM
VIN
BP
SHDN
GND
V_REF
1.23V
Power
Shutdown
Current
Limiting
- _Error
Amp.
+
Thermal
Limiting
VOUT
PIN DESCRIPTIONS
PIN 1 : VIN - Power supply input pin. Bypass
with a 1µF capacitor to GND
PIN 2 : GND - Ground pin.
PIN 3 : SHDN - Active-Low shutdown input pin.
PIN 4 : BP - Noise bypass pin. An external
bypass capacitor connected to
BP pin reduces noises at the
output.
PIN 5 : VOUT - Output pin. Sources up to 500
mA.
DETAILED DESCRIPTIONS OF TECHNICAL TERMS
DROPOUT VOLTAGE (V_DROP)
The dropout voltage is defined as the difference
as the input voltage changes from V_IN = V_OUT +
1V to V_IN = 7V and I_OUT = 1mA.
between the input voltage and output voltage at
which the output voltage drops 100mV. Below
this value, the output voltage will fall as the input
voltage reduces. It depends on the load current
and junction temperature.
LINE REGULATION
Line regulation is the ability of the regulator to
maintain a constant output voltage as the input
LOAD REGULATION
Load regulation is the ability of the regulator to
maintain a constant output voltage as the load
current changes. A pulsed measurement with an
input voltage set to V_IN = V_OUT + V_DROP can
minimize temperature effects. The load regulation
is specified by the output current ranging from
0.1mA to 500mA.
voltage changes. The line regulation is specified
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