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LP8340 - Low Dropout/ Low IQ/ 1.0A CMOS Linear Regulator

General Description

The LP8340 low-dropout CMOS linear regulator is available in 5V, 3.3V, 2.5V, 1.8V and adjustable output versions.

Packaged in the 6ld LLP package and 3ld DPAK.

The LP8340 can deliver up to 1.0A output current.

Key Features

  • a PMOS output transistor which unlike PNP type low dropout regulators requires no base drive current. This allows the device ground current to remain less than 50µA over operating temperature, supply voltage and irrespective of the load current. Features n n n n n n n n n n ± 1.5% Typical VOUT tolerance 420mV Typical Dropout @ 1.0A (VO = 5V) Wide Operating Range 2.7V to 10V Internal 1.0A PMOS Output Transistor 19µA Typical Quiescent Current Thermal Overload Limiting Foldback Current Limiting Z.

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LP8340 Low Dropout, Low IQ, 1.0A CMOS Linear Regulator October 2003 LP8340 Low Dropout, Low IQ, 1.0A CMOS Linear Regulator General Description The LP8340 low-dropout CMOS linear regulator is available in 5V, 3.3V, 2.5V, 1.8V and adjustable output versions. Packaged in the 6ld LLP package and 3ld DPAK. The LP8340 can deliver up to 1.0A output current. Typical dropout voltage is 420mV at 1.0A for the 5.0V version, 540mV at 1.0A for the 3.3V version, 670mV at 1.0A for the 2.5V version and 680mV at 800mA for the 1.8V version. The LP8340 includes a zener trimmed bandgap voltage reference, foldback current limiting and thermal overload limiting. The LP8340 features a PMOS output transistor which unlike PNP type low dropout regulators requires no base drive current.