TS79L00 series 3-Terminal Low Current Negative Voltage Regulator Voltage Range - 5V to - 24V Output Current up to 100mA General Description The TS79L00 Series of negative voltage regulators are inexpensive, easy-to-use devices suitable for a multitude of applications that require a regulated supply of up to 100mA. Like their higher power TS7800 and TS78M00 Series cousins, these regulators feature internal current limiting and thermal shutdown making them remarkably rugged. No external components are required with the TS79L00 devices in many applications. These devices offer a substantial performance advantage over the traditional zener diode-resistor combination, as output impedance and quiescent current are substantially reduced. This series is offered in 3-pin TO-92, SOT-89 and 8-pin SOP-8 package. Features Standard Application Output current up to 100mA No external components required Internal thermal overload protection Internal short-circuit current limiting Output transistor safe-area compensation Output voltage offered in 4% tolerance Ordering Information Part No. Operating Temp. Package A common ground is required between the input and the output voltages. The input voltage must remain typically TS79LxxCT TO-92 2.0V above the output voltage even during the low point TS79LxxCY SOT-89 o on the Input ripple voltage. -20 ~ +125 C TS79LxxCS SOP-8 XX = these two digits of the type number indicate voltage. * = Cin is required if regulator is located an appreciable Note: Where xx denotes voltage option. distance from power supply filter. ** = Co is not needed for stability however, it does improve transient response. Pin Assignment Pin No. Pin Description TS79L00CT TS79L00CY TS79L00CS 3 3 1 Output 2 2 2, 3, 6, 7 Input 1 1 5 Ground 4, 8 Non connected TS79L00 series 1-8 2003/12 rev. B Absolute Maximum Rating Input Voltage Vin * - 35 V Input Voltage Vin ** - 40 V Power Dissipation TO-92 0.625 TO-89 Pd 0.5 W SOP-8 0.5 o Operating Junction Temperature Range T 0 ~ +125 C J o Storage Temperature Range T -65 ~ +150 C STG Note : * TS79L05 to TS79L18 ** TS79L24 TS79L05 Electrical Characteristics o o (Vin= -10V, Iout=40mA, 0 CTj125 C, Cin=0.33uF, Cout=0.1uF unless otherwise specified.) Parameter Symbol Test Conditions Min Typ Max Unit o Tj=25 C - 4.80 - 5 - 5.20 Output voltage Vout V -7.5VVin -20V, - 4.75 - 5 - 5.25 5mAIout 100mA -7.5VVin -20V, o Line Regulation REGline Tj=25 C -- 50 150 Io=40mA mV 5mAIout 100mA -- 20 60 o Load Regulation REGload Tj=25 C 5mAIout 40mA -- 10 30 o Quiescent Current Iq Iout=0, Tj=25C -- 3 6 -8VVin -20V -- -- 1.5 mA Quiescent Current Change Iq 1mAIout 40mA -- -- 0.1 o Output Noise Voltage Vn 10Hzf 100KHz, Tj=25C -- 40 -- uV Ripple Rejection Ratio RR f=120Hz, -8VVin -18V 41 49 -- dB o Voltage Drop Vdrop Tj=25C -- 1.7 -- V o Peak Output Current Io peak Tj=25C -- 0.15 -- A z Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible, and thermal effects must be taken into account separately. z This specification applies only for DC power dissipation permitted by absolute maximum ratings. TS79L00 series 2-8 2003/12 rev. B