LP38693-ADJ

Features:

`Output voltage range of 1.25V - 9V
`2.0% adjust pin voltage accuracy (25)
`Low dropout voltage: 250mV @ 500mA (typ, 5V out)
`Wide input voltage range (2.7V to 10V)
`Precision (trimmed) bandgap reference
`Guaranteed specs for -40 to +125
`1µA off-state quiescent current
`Thermal overload protection
`Foldback current limiting
`SOT-223 and 6-Lead LLP packages
`Enable pin (LP38693-ADJ)


Application

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


Pinout

Specifications

Storage Temperature Range                −65 to +150
Lead Temp. (Soldering, 5 seconds)                       260
ESD Rating (Note 3)                                                2 kV
Power Dissipation (Note 2)                 Internally Limited
V(max) All pins (with respect to GND)         -0.3V to 12V
I_OUT                                                    Internally Limited
Junction Temperature                           −40 to +150


Description

The LP38693-ADJ low dropout CMOS linear regulators provide 2.0% precision reference voltage, extremely low dropout voltage (250mV @ 500mA load current, V_OUT = 5V) and excellent AC performance utilizing ultra low ESR ceramic output capacitors.

The low thermal resistance of the LLP and SOT-223 packages allow the full operating current to be used even in high ambient temperature environments.

The use of a PMOS power transistor means that no DC base drive current is required to bias it allowing ground pin current to remain below 100 µA regardless of load current, input voltage, or operating temperature.

Dropout Voltage: 250 mV (typ) @ 500mA (typ. 5V out).
Ground Pin Current: 55 µA (typ) at full load.
Adjust Pin Voltage: 2.0% (25) accuracy.