3A FlexCap low dropout linear regulation

• FlexCap: Stable with ceramic, tantalum, aluminum capacitors
• 10μF input/output capacitance stability
• Adjustable output voltage from 0.6V to 5V
• Low ground pin current
• 25 nA quiescent current in shutdown mode
• The guaranteed output current is 3A
• Available in TO-263 and TO-263 low-profile packages
• Guarantee V ADJ. Accuracy± 1.5% @ 25°C (Class A)
• Guarantee V ADJ. Accuracy± 3.5% @ 25°C (STDs)
• Overheat and overcurrent protection
• Operating T J range from -40°C to +125°C
• Enable Pin (LP38501)

illustrate

The unique feature compensation of the National FlexCap LDO allows the use of any type of output capacitor with no minimum or maximum ESR restrictions. The LP38501/3 series low-dropout linear regulators operate from a +2.7 V to +5.5 V input supply. These ultra-low dropout linear regulators respond very quickly to one-step loads, which makes them suitable for use in variations in low-voltage microprocessor applications. Developed using CMOS process (utilizing PMOS bypass transistors), LP38501/3 has low quiescent current and little change in load current.

Ground Pin Current: The load current at 3A is typically 2 mA.

Ban Mode: Typically 25 NA quiescent current when the enabling pin is pulled down.

Simplified Compensation: With any type, regardless of the output capacitance of the ESR.

Precision Output: "One" can be used with 1.5% V ADJ. Tolerance (25°C) and more than 3% line, load and temperature class versions.

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• Power supply for ASIC:

• Printer, graphics card, DVD player

• Set-top boxes, copiers, routers
• Power supplies for DSPs and FPGAs
• Switching power supply regulator
• Conversion from a 3.3V or 5V supply