LP8345

Features:

` ±1.5% Typical V<sub>OUT</sub> tolerance
` 210mV Typical Dropout @ 500mA (V_O = 5V)
` Wide Operating Range 2.7V to 10V
` Internal 500mA PMOS Output Transistor
` 19A Typical Quiescent Current
` Thermal Overload Limiting
` Foldback Current Limiting
` Zener Trimmed Bandgap Reference
` Space saving LLP package
` Temperature Range
- LP8345C 0 to 125
- LP8345I −40 to 125




Application

· Hard Disk Drives
· Notebook Computers
· Battery Powered Electronics
· Portable Instrumentation




Specifications

Output Current	500 mA
Output Min	1.8, 2.5, 3.3 Volt
Input Min Voltage	2.7 Volt
Input Max Voltage	10 Volt
Dropout Voltage	0.27, 0.335, Undefined Volt
Adjustable Output	No
Quiescent Current	0.019 mA
On/Off Pin	No
Error Flag	No
RegType	LDO
Temperature Min	0 deg C
Temperature Max	125 deg C
Output Voltage	1.8, 2.5, 3.3 Volt
Output Max	1.8, 2.5, 3.3 Volt
View Using Catalog

V_IN, V_OUT, V_OUT Sense, ADJ −0.3V to 12V
Storage Temperature Range −65 to 160
Junction Temperature (T_J) 150
Power Dissipation (Note 3)
ESD Rating
Human Body Model (Note 6) 2kV
Machine Model 200V




Description

`The LP8345 low-dropout CMOS linear regulator are available in 5V, 3.3V, 2.5V, 1.8V or adjustable output versions.

Packaged in our 6ld LLP package and 3ld DPAK they can deliver up to 500mA output current.

`Typical dropout voltage @ 500mA is 210mV for the 5.0V version, 270mV for the 3.3V version and 335mV for the 2.5V version.

`The devices include a zener trimmed bandgap voltage reference, foldback current limiting and thermal overload limiting.

`The LP8345 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 50A over operating temperature, supply voltage and irrespective of the load current.