The MAX8516/MAX8517/MAX8518 low-dropout linear
regulators operate from input voltages as low as 1.425V
and are able to deliver up to 1A of continuous output
current with a maximum dropout voltage of only 200mV.
The output voltage can be set from 0.5V to (VIN - 0.2V)
and is 1.4% accurate over load and line variations, from
0°C to +85°C.
These regulators use small, 1µF ceramic input capacitors
and 4.7µF ceramic output capacitors to deliver 1A
output current. High bandwidth provides excellent transient
response and limits the output voltage deviation to
45mV for a 20mA to 1A load step, with only a 4.7µF
ceramic output capacitor, and the voltage deviations can
be reduced further by increasing the output capacitor.
Designed with an internal p-channel MOSFET pass
transistor, the MAX8516/MAX8517/MAX8518 feature
low 340µA (typ) supply current during dropout conditions.
Soft-start reduces inrush current. Other features
include a logic-controlled shutdown mode, short-circuit
protection, and thermal-overload protection.
The MAX8517 features a power-OK (POK) output that
transitions high when the regulator output is within
±10% of its nominal output voltage. The MAX8518
features a 150ms power-on reset output.
The parts are packaged in a 10-pin µMAX® package that
includes an exposed pad for optimal power dispation.
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