L4959

® L4959 MULTIFUNCTION VOLTAGE REGULATOR FOR HOME AUDIO 4 OUTPUTS: 12V (1.3A); 12V (0.8A); 8.6V (0.6A); 5.6V (0.25A) STANDBY OUT1 12V(a), OUT2 12V(b) AND OUT3 8.6V WITH INDEPENDENT ENABLE CONTROL FOR STAND-BY MODE SHORT-CIRCUIT PROTECTION TO GROUND THERMAL SHUTDOWN DESCRIPTION The L4959 is a monolithic Multifunction Voltage Regulator, designed mainly for supplying Home Audio systems. The L4959 contains one unswitched linear 5.6V regulator for Micro, two switched regulators 8.6V and 12V, suitable to feed CD or CD players and LED, Signal Process. An additional 12V regulator for Solenoid Motor an CD_TRAY Driven is also available. Multiwatt 11 ORDERING NUMBER: L4959 BLOCK DIAGRAM 2/10 5.6V, 250mA REGULATOR 8.6V, 600mA REGULATOR SWITCHED EN 8V 8 12V, 800mA REGULATOR SWITCHED EN 12V(a) 7 12V, 1.3A REGULATOR SWITCHED EN 12V(b) 5 1 11 VS 3 OUT 5.6V REF GEN 9 OUT 8.6V OUT 12V(a) OUT 12V(b) 6 D97AU569C GND January 1999 1/6 L4959 ABSOLUTE MAXIMUM RATINGS Symbol VS IO Top Tstg DC Supply Voltage Output Current Operating Temperature Range Storage Temperature Parameter Value 35 internally limited 0 to +70 –40 to 150 °C °C Unit V PIN CONNECTION (Top view) 11 10 9 8 7 6 5 4 3 2 1 OUT 12V(a) VS OUT 8.6V EN 8.6V EN 12V(a) GND EN 12V(b) N.C. OUT 5.6V VS OUT 12V(b) TAB CONNECTED TO PIN 6 D97AU716A PIN DESCRIPTION Pin 1 2 3 4 5 6 7 8 9 10 11 Pins OUT 12V (b) VS OUT 5.6V N.C. EN 12V (b) GND EN 12V (a) EN 8.6V OUT 8.6 VS OUT 12V (a) Description 12V/1.3A SWITCHED OUTPUT VOLTAGE Supply Voltage 5.6V/250mA OUTPUT VOLTAGE not connected Enable 12V/1.3A SWITCHED OUTPUT VOLTAGE Ground Enable 12V/0.8A SWITCHED OUTPUT VOLTAGE Enable 8.6V/0.6A SWITCHED OUTPUT VOLTAGE 8.6V/0.6A SWITCHED OUTPUT VOLTAGE Supply Voltage 12V/0.8A SWITCHED OUTPUT VOLTAGE QUICK REFERENCE DATA Symbol Vout 5V Parameter 5V Output Voltage Test Condition IO = 125mA 14.4V < VS < 21.6V 5mA < I < 0.25A Vout 8V Vout 12Va 8.6V Output Voltage 12V Output Voltage IO = 300mA 14.4V < VS < 21.6V 5mA < I < 0.6A Iout = 400mA 14.4V < VS < 21.6V 5mA < I < 0.8A Vout 12Vb 12V Output Voltage Iout = 650mA 14.4V < VS < 21.6V 5mA < I < 1.3A Typ. 5.6 5.6 8.6 8.6 12 12 12 12 Unit V V V V V V V V 2/6 L4959 THERMAL DATA Symbol Rth j-case Parameter Thermal Resistance Junction-case Value 2 Unit °C/W ELECTRICAL CHARACTERISTICS (VS = 18V, Tcase = 25°C, unless otherwise specified.) Symbol VS En Iq Vout 5V Parameter Operating Supply Voltage Output Noise Voltage Quiescent Current Test Condition no load loaded (*) Any reg. supply, f = 100Hz to 20KHz Min. 15 14.4 Typ. 22 18 200 8 Max. 30 21.6 400 Unit V V µV mA 5.6V/250mA OUTPUT VOLTAGE 5V Output Voltage IO = 125mA 14.4V < VS < 21.6V 5mA < I < 0.25 14.4V < VS < 21.6V 5mA < Io < 250mA Iout = 250mA VS = 21.6V 5.45 5.40 5 50 2.05 325 5.9 6 50 150 2.7 V V mV mV V mA ∆Vline ∆Vload Vdropout Ilim Line Regulation Load Regulation Dropout Voltage Current Limit 250 8.6V/0.6A SWITCHED OUTPUT VOLTAGE Vout 8V ∆Vline ∆Vload Vdropout Ilim SWon SW off SW hyst 8.6V Output Voltage Line Regulation Load Regulation Dropout Voltage Current Limit Switch ON Switch OFF Switch Hysteresis IO = 300mA 14.4V < VS < 21.6V 5mA < I < 0.6A 14.4V < VS < 21.6V 5mA < Io < 0.6A Iout = 0.6A VS = 21.6V 0.6 1.5 8.4 8.3 5 50 2.05 0.8 2.31 2.11 200 9.1 9.2 50 350 2.7 3.5 V V mV mV V A V V mV 12V/0.8A SWITCHED OUTPUT VOLTAGE Vout12Va 12V Output Voltage Iout = 400mA 14.4V < VS < 21.6V 5mA < I < 0.8A 14.4V < Vs < 21.6V 5mA < Io < 0.8A Iout = 0.8A VS = 21.6V f = 100Hz f = 10KHz 0.8 55 40 1.5 11.7 11.6 10 100 2.13 1.1 75 2.31 2.11 200 3.5 12.7 12.8 50 350 2.7 V V mV mV V A dB V V mV ∆Vline ∆Vload Vdropout Ilim SVR SWon SW off SW hyst Line Regulation Load Regulation Dropout Voltage Current Limit Supply Voltage Rejection Switch ON Switch OFF Switch Hysteresis 12V/1.3A SWITCHED OUTPUT VOLTAGE Vout12Vb 12V Output Voltage Iout = 650mA 14.4V < VS < 21.6V 5mA < I < 1.3A 14.4V < Vs < 21.6V 5mA < Io < 1.3A Iout = 1.3A VS = 21.6V 1.3 11.6 11.5 10 200 2.15 1.7 12.6 12.7 50 450 2.7 V V mV mV V A 3/6 ∆Vline ∆Vload Vdropout Ilim Line Regulation Load Regulation Dropout Voltage Current Limit L4959 ELECTRICAL CHARACTERISTICS (continued) Symbol SVR SWon SW off SW hyst Parameter Supply Voltage Rejection Switch ON Switch OFF Switch Hysteresis Test Condition f = 100Hz f = 10KHz Min. 55 40 1.5 Typ. 75 2.31 2.11 200 Max. Unit dB V V mV 3.5 (*) The max value is limited by the power dissipation Figure 1: Application and Test Circuit. 5.6V 0.25A C3 0.1µF 2 C1 2200µF 35VL VCC C2 0.33µF G 10 3 11 C4 0.1µF 12Vb 1.3A µ-PROC 12Va 0.8A SIGNAL +VS GND L4959 6 8 7 5 1 C5 0.1µF 9 C6 0.1µF 8.6V 0.6A DECK CD +5V EN8.6V EN12Va EN12Vb C7 100µF 16VL C8 100µF 16VL C9 100µF 16VL C10 100µF 16VL D97AU802 Figure 2: PCB and Components layout of the Figure 1. 4/6 L4959 DIM. MIN. A B C D E F G G1 H1 H2 L L1 L2 L3 L4 L7 M M1 S S1 Dia1 21.9 21.7 17.4 17.25 10.3 2.65 4.25 4.73 1.9 1.9 3.65 4.55 5.08 17.5 10.7 22.2 22.1 0.49 0.88 1.45 16.75 19.6 20.2 22.5 22.5 18.1 17.75 10.9 2.9 4.85 5.43 2.6 2.6 3.85 0.862 0.854 0.685 0.679 0.406 0.104 0.167 0.186 0.075 0.075 0.144 0.179 0.200 0.689 0.421 0.874 0.87 1.7 17 1 0.55 0.95 1.95 17.25 0.019 0.035 0.057 0.659 0.772 0.795 0.886 0.886 0.713 0.699 0.429 0.114 0.191 0.214 0.102 0.102 0.152 0.067 0.669 mm TYP. MAX. 5 2.65 1.6 0.039 0.022 0.037 0.077 0.679 MIN. inch TYP. MAX. 0.197 0.104 0.063 OUTLINE AND MECHANICAL DATA Multiwatt11 V 5/6 L4959 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. 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