Part # MAX8556-MAX8557 datasheet

Part Manufacturer: Maxim


Part Description: MAX8556 57 DS

Part Details:

19-3257; Rev 1; 8/08 EVALUATION KIT AVAILABLE 4A Ultra-Low-Input-Voltage LDO Regulators MAX8556/MAX8557 General Description Features The MAX8556/MAX8557 low-dropout linear regulators o 1.425V to 3.6V Input Voltage Range operate from input voltages as low as 1.425V and are o Guaranteed 4A Output Current able to deliver up to 4A of continuous output currentwith a typical dropout voltage of only 100mV. The out- o ±1% Output Accuracy Over Load/Line/ put voltage is adjustable from 0.5V to V Temperature IN - 0.2V. Designed with an internal p-channel MOSFET pass tran- o 100mV Dropout at 4A Load (typ) sistor, the MAX8556/MAX8557 maintain a low 800µA typi- o Built-In Soft-Start cal supply current, independent of the load current and o 800µA (typ) Operating Supply Current dropout voltage. Using a p-channel MOSFET eliminatesthe need for an additional external supply or a noisy inter- o 150µA (max) Shutdown Supply Current nal charge pump. Other features include a logic-con- o Short-Circuit Current Foldback Protection trolled shutdown mode, built-in soft-start, short-circuit o Thermal-Overload Protection protection with foldback current limit, and thermal-over-load protection. The MAX8556 features a POK output that o ±10% Power-OK (MAX8556) transitions high when the regulator output is within ±10% o 140ms Power-On Reset Output (MAX8557) of its nominal output voltage. The MAX8557 offers a o Fast Transient Response power-on reset output that transitions high 140ms after theoutput has achieved 90% of its nominal output voltage. o 16-Pin Thin QFN (5mm x 5mm) Package The MAX8556/MAX8557 are available in a 16-pin thinQFN 5mm x 5mm package with exposed paddle. Applications Ordering Information Servers and Storage Devices PIN- Networking PART TEMP RANGE FEATURE PACKAGE Base Stations 16 Thin QFN MAX8556ETE+ -40°C to +85°C POK 5mm x 5mm Optical Modules 16 Thin QFN

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MAX8556-MAX8557.pdf Datasheet