L79L05ABD STMicroelectronics

L79LxxAB L79LxxAC - L79LxxC Negative voltage regulators Features Output current up to 100 mA Output voltages of -5 -6 -8 -9 -12 -15 V Thermal overload protection Short circuit protection TO-92 No external components are required Available in either 5% (AC) or 10% (C) selection Description SO-8 SOT-89 The L79Lxx series of three-terminal negative regulators employ internal current limiting and power pass elements to make high-current thermal shutdown, making them essentially voltage regulators. indestructible. If adequate heat-sink is provided, The L79Lxx series used as Zener diode/resistor they can deliver up to 100 mA output current. combination replacement, offers an effective They are intended as fixed voltage regulators in a output impedance improvement of typically two wide range of applications including local or on- orders of magnitude, along with lower quiescent card regulation for elimination of noise and current and lower noise. distribution problems associated with single-point regulation. In addition, they can be used with Table 1. Device summary Part numbers L79L05AC L79L09AC L79L05AB L79L09AB L79L06C L79L12C L79L06AC L79L12AC L79L06AB L79L12AB L79L08C L79L15C L79L08AC L79L15AC L79L08AB L79L15AB L79L09C July 2009 Doc ID 2511 Rev 16 1/27 www.st.com 27 L79LxxAB, L79LxxAC, L79LxxC Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 6 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 2/27 Doc ID 2511 Rev 16