7915CV

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 TO-220 TO-220FP 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. D2PAK TO-3 Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. Schematic diagram www.DataSheet4U.com January 2007 Rev. 11 1/24 www.st.com 24 L7900 series Contents 1 2 3 4 5 6 7 8 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Test circuit ................................................ 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Application inf...