IL79LXX THREE-TERMINAL LOW CURRENT POSITIVE VOLTAGE REGULATORS The IL79LXX, A Series negative voltage regulators are inexpensive, easy-to-use devices suitable for numerous applications requiring up to 100 mA. This series features thermal shutdown and current limiting, making them remarkably rugged. In most applications, no external components are required for operation. The IL79LXX devices are useful for on-card regulation or any other application where a regulated negative voltage at a modest current level is needed. These regulators offer substantial advantage over the common resistor/zener diode approach. FEATURES TO-226AA / TO-92 Pin 1. Output 2.Ground 3.Input Standard application No External Components Required * Internal Short Circuit Current Limiting * Internal Thermal Overload Protection * Low Cost * Complementary Positive Regulators Offered (IL78LXX Series) * Available in Either 5% (AC) or10% (C) Selections Vin Vout I L 79L XX N o** 0.1F N in* 0.33F A common ground is required between the input and the output voltages. The input voltage must remaintypically 2.0 V above the output voltage even during the low point on the input ripple voltage. *C in is required if regulator is located an *appreciable distance from power supply filter. **C O is not needed for stability; however, it does *improve transient response. ABSOLUTE MAXIMUM RATINGS Rating Symbol Vl Input Voltage (-5.0 V) (-12, -15, -18V) (-24V) Storage Temperature Range Operating Junction Temperature Range Tstg TJ 1 Value -30 -35 -40 -65 to +150 +150 Unit Vdc C C IL79LXX IL79L05 ELECTRICAL CHARACTERISTICS (Vl=-10 V, Io= 40 mA, Cl = 0.33 F, Co = 0.1 F, -40C < TJ < +125C unless otherwise noted.) Characteristics Symbol Min Typ Max Unit -4.8 VO Output Voltage (TJ=+25C) Line Regulation Regline (TJ = +25C) -7.0 Vdc Vi 20 Vdc -8.0 Vdc Vi 20 Vdc Load Regulation Pegload TJ = +25C, 1.0 mA IO 100 mA) 1.0 mA Io 40 mA) Output Voltage -7.0 Vdc Vi -20Vdc, (Vi=-10 V, 1.0 mAIo70 mA) Input Bias Current (TJ = +25C) (TJ =+125C) Input Bias Current Change -8.8 Vdc Vi -20 Vdc) 1.0 mA Io 40 mA Output Noise Voltage (TA=+25C, 10 Hzf100 kHz) Ripple Rejection (-8.0 Vdc Vi -18 V, f= 120 Hz, TJ= +25C) Dropout Voltage (IO=40 mA, TJ = +25C) -5.0 -5.2 Vdc mV - - 150 100 - - 60 30 -4.75 -4.75 - -5.25 -5.25 - - 6.0 5.5 - - 1.5 0.1 Vn - 40 - V RR 41 49 - dB Vi-Vo - 1.7 - Vdc mV VO Vdc IIB mA IIB mA IL79L12 ELECTRICAL CHARACTERISTICS (Vi =-19 V, Io =40 mA, Ci = 0.33 F, Co = 0.1 F, -40C < TJ < +125C, unless otherwise noted.) Characteristics Symbol Min Typ Max Unit Output Voltage (TJ = +25C) Line Regulation (TJ = +25C) -14.5Vdc Vi 27Vdc -16 Vdc Vi 27 Vdc Load Regulation TJ = +25C, 1.0 mA Io 100 mA 1.0 mA Io 40 mA Output Voltage -14.5Vdc Vi -27Vdc, 1.0mAIo 40mA) Vi = 19V, 1.0mA Io 70mA) Input Bias Current (TJ = +25C) (TJ = +125C) Input Bias Current Change -16Vdc Vi -27Vdc 1.0 mA Io 40 mA Output Noise Voltage (TA = +25C, 10Hz f 100 kHz) Ripple Rejection -15V Vi -25V, f= 120 Hz, TJ=+25C) Dropout Voltage (IO= 40 mA, TJ = +25C) Vo -11.1 -12 -12.9 Vdc mV Regline - - 250 200 - - 100 50 Pegload mV Vo Vdc -10.8 -- 10.8 - -13.2 -13.2 - - 6.5 6.0 - - 1.5 0.2 Vn - 80 - V RR 36 42 - dB Vi-Vo " 1.7 - Vdc mA IIB IIB mA 2 IL79LXX IL79L15 ELECTRICAL CHARACTERISTICS (Vi = -23 V, Io = 40 mA, Ci = 0.33 F, Co= 0.1 F, -40C < TJ < +125C), unless otherwise noted.) Characteristics Symbol Min Typ Max Unit Output Voltage (TJ = +25C) Line Regulation (TJ = +25C, Io = 40mA) -30Vdc Vi -17.5Vdc -30Vdc Vi -20Vdc Load Regulation (TJ = +25C, 1.0 mA Io 100 mA) (TJ = +25C, 1.0 mA Io < 40 mA) Output Voltage (17.5VdcVi 30Vdc, 1.0 mAIo 40 mA) (Vi = 23V, 1.0mA Io 70 mA) Input Bias Current (TJ = +25C) (TJ = +125C) Input Bias Current Change (20Vdc Vi 30Vdc) (1.0mA Io 40 mA) Output Noise Voltage (TA = +25C, 10Hz f 100 kHz) Ripple Rejection (IO = 40 mA, f =120 Hz, 18.5V Vi 28.5V, TJ = +25C) Dropout Voltage (TJ = +25C) Vo -13.8 -15 -16.2 Vdc mV Regline - - 300 250 - - 150 75 -13.5 -13.5 - -16.5 -16.5 - - 6.5 6.0 - - 1.5 0.2 Vn - 90 - nV RR 33 39 - dB Vi-Vo - 1.7 - Vdc mV Pegload Vo Vdc IIB mA IIB mA IL79L18 ELECTRICAL CHARACTERISTICS (Vi = 27 V, Io = 40 mA, Ci = 0.33 F, Co = 0.1 F, 40C < TJ < +125C, unless otherwise noted.) Characteristics Symbol Min Typ Max Unit Output Voltage (TJ = +25C) Line Regulation (TJ = +25C, Io= 40 mA) -33 Vdc Vi -20.7Vdc -33 Vdc Vi -22 Vdc Load Regulation (TJ = +25C, 1.0 mA Io 100 mA) (TJ = +25C, 1.0 mA Io 40 mA) Output Voltage (-33Vdc Vi-21.4Vdc, 1.0 mA Io 40 mA) (Vi = -27 V, 1.0mA Io 70 mA) Input Bias Current (TJ = +25C) (TJ = +125C) Input Bias Current Change (-33Vdc Vi -22Vdc) (1.0mA Io 40 mA) Output Noise Voltage (T=+25C,10Hz Io 100kHz) Ripple Rejection (f = 120 Hz, -33 V Vi -23 V, TJ = +25C) Dropout Voltage (TJ = +25C) -16.6 VO -18 -19.4 Vdc mV Regline - - 325 275 - - 170 85 -16.2 -16.2 - -19.8 -19.8 - - 6.5 6.0 - - 1.5 0.2 Vn - 150 - nV RR 32 46 - dB Vi-Vo - 1.7 - Vdc Pegload mV Vo Vdc mA IIB IIB mA 3 IL79LXX IL79L24 ELECTRICAL CHARACTERISTICS (Vi = 33 V, Io = 40 mA, Ci = 0.33 F. Co = 0.1 F, 0C < TJ < +125C, unless otherwise noted.) Characteristics Output Voltage (TJ = +25C) Line Regulation (TJ = +25C, Io = 40 mA) 38 Vdc Vi 27.5 Vdc 38 Vdc Vi 28 Vdc Load Regulation (TJ = +25C, 1.0 mA Io 100 mA) (TJ = +25C, 1.0 mA Io 40 mA) Output Voltage -38VdcVi -28Vdc, 1.0 mA Io 40 mA Vi= -33Vdc, 1.0 mA Io 70 mA Input Bias Current (TJ = +25C) (TJ = +125C) Input Bias Current Change (-38 Vdc Vi -28 Vdc) (1.0 mA Io 40 mA) Output Noise Voltage (T = +25C, 10Hz f 100 kHz) Ripple Rejection (IO = 40 mA, f= 120 Hz, 35V Vi -29V, TJ = +25C) Dropout Voltage (TJ = +25C) Symbol Min -22.1 VO Typ -24 Max -25.9 Unit Vdc mV Regline - 35 30 350 300 - 40 20 200 100 -21.6 -21.6 - -26.4 -26.4 - - 6.5 6.0 - - 1.5 0.2 Vn - 200 - nV RR 30 43 - dB Vi-Vo - 1.7 - Vdc mV Regload Vdc VO mA IIB IIB rnA 4