LP8340 Datasheet | National Semiconductor

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 420m V at 1.0A for the 5.0V version, 540m V at 1.0A for the 3.3V version, 670m V at 1.0A for the 2.5V version and 680m V at 800m A 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. 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 420m V 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 Zener Trimmed Bandgap Reference Space saving LLP package Temperature Range - LP8340C 0˚C to 125˚C - LP8340I - 40˚C to 125˚C Applications n n n n Hard Disk Drives Notebook puters Battery Powered Electronics Portable Instrumentation Typical Applications Fixed VOUT Adjustable VOUT © 2003 National Semiconductor Corporation DS200609 .national. Ordering Information Package 6-Pin LLP Part Number LP8340CLD-ADJ LP8340CLDX-ADJ LP8340CLD-1.8 LP8340CLDX-1.8 LP8340CLD-2.5 LP8340CLDX-2.5 LP8340CLD-3.3 LP8340CLDX-3.3 LP8340CLD-5.0 LP8340CLDX-5.0 LP8340ILD-ADJ LP8340ILDX-ADJ LP8340ILD-1.8 LP8340ILDX-1.8 LP8340ILD-2.5 LP8340ILDX-2.5 LP8340ILD-3.3 LP8340ILDX-3.3 LP8340ILD-5.0 LP8340ILDX-5.0 3-Pin DPAK LP8340CDT-1.8 LP8340CDTX-1.8 LP8340CDT-2.5 LP8340CDTX-2.5 LP8340CDT-3.3 LP8340CDTX-3.3 LP8340CDT-5.0 LP8340CDTX-5.0 LP8340IDT-1.8 LP8340IDTX-1.8 LP8340IDT-2.5 LP8340IDTX-2.5 LP8340IDT-3.3 LP8340IDTX-3.3 LP8340IDT-5.0 LP8340IDTX-5.0...