L7900_07 Datasheet, PDF (1/24 Pages) STMicroelectronics – Negative voltage regulators

L7900 series
Negative voltage regulators
Feature summary
■ Output current up to 1.5A
■ Output voltages of -5; -6; -8; -12; -15; -18; -20;
-24V
■ Thermal overload protection
■ Short circuit protection
■ Output transition SOA protection
Description
The L7900 series of three-terminal negative
regulators is available in TO-220, TO-220FP, TO-3
and D²PAK packages and several fixed output
voltages, making it useful in a wide range of
applications. These regulators can provide local
on-card regulation, eliminating the distribution
problems associated with single point regulation;
furthermore, having the same voltage option as
the L7800 positive standard series, they are
particularly suited for split power supplies. If
adequate heat sinking is provided, they can
deliver over 1.5A output current.
Schematic diagram
TO-220
TO-220FP
D²PAK
TO-3
Although designed primarily as fixed voltage
regulators, these devices can be used with
external components to obtain adjustable
voltages and currents.
January 2007
Rev. 11
1/24
www.st.com
24