LM7924

LM79XX 3-Terminal Negative voltage Regulators DESCRIPTION These voltage regulators are designed as fixed negative voltage regulators for a wide variety of applications including local, on-card regulation. Although designed primarily as a fixed voltage regulator, these devices can be used with external components to obtain adjustable voltages and currents. FEATURES ■ Output current in excess of 1.0A ■ No external components required ■ Output Voltages (-5V, -6V, -8V, -9V, -10V, -12V, -15V, -18V) ■ Internal Thermal shutdown and SOA protection ■ Output voltage offered in 4% Tolerance ■ Pb-Free Packages are available ■ High ESD Level (HBM>8000V, MM>800V) TYPICAL APPLICATION The input voltage must remain typically 2.0V above the output voltage even during the low point on the ripple voltage. * CI is required if regulator is located an appreciable Distance from power filter. * CO improves transient response. Values of ≤ 1.0 µF could cause instability. Input 2 Output 3 1 CI CO 2.2uF 1.0uF 1.0A ,Negative voltage Regulators www.apsemi.com REV. 03 1 LM79XX Maximum Ratings (TA=25 °C, unless otherwise noted) Rating Symbol Value Unit TO-220F TO-220 TO-252 Input Voltage -5V ~ -18V VI -35 V -24V -40 Power Dissipation Thermal Resistance of Junction to Ambient Thermal Resistance of Junction to Case Storage Temperature Junction Temperature Operating Temperature PD RθJA RθJC TSTG TJ TOPR 22 65 65 55 -55 ~ 125 + 150 -40 ~ 125 1.3 92 5 W °C/W °C/W °C °C °C Stresses ex...