Advanced Monolithic Systems, Inc.

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AMS1505V

ELECTRICAL CHARACTERISTICS

Parameter

Device

Conditions

Min

Typ

Max

Units

Dropout Voltage

Note 2

Control Dropout

AMS1505V/-1.5/-2.5/

-2.85/-3.0/-3.3/-3.5/-5.0

1.00

1.15

1.20

1.30

V

V

Power Dropout

AMS1505V/-1.5/-2.5/

-2.85/-3.0/-3.3/-3.5/-5.0

175

300

200

350

mV

mV

Parameters identified with boldface type apply over the full operating temperature range.

Electrical Characteristics

minimum input/output voltage required to maintain within 1% regulation.

divider used to set the output voltage is selected to meet the minimum load current requirement.

minimum value is equal to the quiescent current of the device.

PIN FUNCTIONS

Sense (Pin 1): This pin is the positive side of the reference

voltage for the device. With this pin it is possible to Kelvin

sense the output voltage at the load.

Adjust/Ground (Pin 2): This pin is the negative side of

the reference voltage for the device. Adding a small

bypass capacitor from the Adjust pin to ground improves

the transient response.

Output (Pin 3): This is the power output of the device.

control circuitry of the device. The current flow into

this pin will be about 1% of the output current. The

voltage at this pin must be 1.3V or greater than the

output voltage for the device to regulate.

device of the AMS1505V. The output load current is

supplied through this pin. The voltage at this pin must

be between 0.1V and 0.35V greater than the output

voltage for the device to regulate.