The LP3995 linear regulator is designed to meet the requirements of portable
battery-powered applications, providing an accurate output voltage with low noise and low quiescent
current. Ideally suited for powering RF and analog devices, this device can also be used to meet
more general circuit needs in which a fast turnoff is essential.
For battery-powered applications the low dropout and low ground current provided by the
device allows the lifetime of the battery to be maximized. The Enable(/Disable) control function
allows the system to further extend the battery lifetime by reducing the power consumption to
virtually zero. This function also incorporates an active discharge circuit on the output for
faster device shutdown. Where the fast turnoff is not required the LP3999 linear regulator is
recommended. The LP3995 also features internal protection against short-circuit currents and
The LP3995 is designed to be stable with small 1-µF ceramic capacitors. The small outline
of the LP3995 DSBGA package with the required ceramic capacitors can realize a system application
within minimal board area. Performance is specified for a −40°C to +125°C temperature range.
The LP3995 is available in fixed output voltages from 1.5 V to 3.3 V, in DSBGA or WSON
packages. For other package options or output-voltage options, contact your local TI sales office.
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