资料介绍
The MAX8556/MAX8557 low-dropout linear regulators
operate from input voltages as low as 1.425V and are
able to deliver up to 4A of continuous output current
with a typical dropout voltage of only 100mV. The output
voltage is adjustable from 0.5V to VIN - 0.2V.
Designed with an internal p-channel MOSFET pass transistor,
the MAX8556/MAX8557 maintain a low 800μA typical
supply current, independent of the load current and
dropout voltage. Using a p-channel MOSFET eliminates
the need for an additional external supply or a noisy internal
charge pump. Other features include a logic-controlled
shutdown mode, built-in soft-start, short-circuit
protection with foldback current limit, and thermal-overload
protection. The MAX8556 features a POK output that
transitions high when the regulator output is within ±10%
of its nominal output voltage. The MAX8557 offers a
power-on reset output that transitions high 140ms after the
output has achieved 90% of its nominal output voltage.
The MAX8556/MAX8557 are available in a 16-pin thin
QFN 5mm x 5mm package with exposed paddle.
Applications
Servers and Storage Devices
Networking
Base Stations
Optical Modules
Point-of-Load Supplies
ATE
operate from input voltages as low as 1.425V and are
able to deliver up to 4A of continuous output current
with a typical dropout voltage of only 100mV. The output
voltage is adjustable from 0.5V to VIN - 0.2V.
Designed with an internal p-channel MOSFET pass transistor,
the MAX8556/MAX8557 maintain a low 800μA typical
supply current, independent of the load current and
dropout voltage. Using a p-channel MOSFET eliminates
the need for an additional external supply or a noisy internal
charge pump. Other features include a logic-controlled
shutdown mode, built-in soft-start, short-circuit
protection with foldback current limit, and thermal-overload
protection. The MAX8556 features a POK output that
transitions high when the regulator output is within ±10%
of its nominal output voltage. The MAX8557 offers a
power-on reset output that transitions high 140ms after the
output has achieved 90% of its nominal output voltage.
The MAX8556/MAX8557 are available in a 16-pin thin
QFN 5mm x 5mm package with exposed paddle.
Applications
Servers and Storage Devices
Networking
Base Stations
Optical Modules
Point-of-Load Supplies
ATE
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