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Now downloading free:SGS-Thomson L78S00

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File name:L78S00series.pdf
[preview L78S00]
Size:285 kB
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Mfg:SGS-Thomson
Model:L78S00 🔎
Original:L78S00 🔎
Descr:2A Positive voltage regulators L78S00 Series
Group:Electronics > Components > Integrated circuits
Uploaded:09-03-2004
User:plamensl
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File name L78S00series.pdf

L78S00 SERIES 2A POSITIVE VOLTAGE REGULATORS . . . . . OUTPUT CURRENT TO 2A OUTPUT VOLTAGES OF 5 ; 7.5 ; 9 ; 10 ; 12 ; 15 ; 18 ; 24V THERMAL OVERLOAD PROTECTION SHORT CIRCUIT PROTECTION OUTPUT TRANSISTOR SOA PROTECTION DESCRIPTION The L78S00 series of three-terminal positive regulators is available in TO-220 and TO-3 packages and with several fixed output voltages, making it useful in a wide range of applications. These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation. Each type employs internal current limiting, thermal shut-down and safe area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 2A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. BLOCK DIAGRAM TO-3 TO-220 January 1993 1/21 L78S00 SERIES ABSOLUTE MAXIMUM RATINGS Symbol Vi Io Pt o t T stg To p Parameter DC Input Voltage (for V o = 5 to 18V) (for V o = 24V) Output Current Power Dissipation Storage Temperature Operating Junction Temperature (for L78S00 ) (for L78S00C ) Value 35 40 Internally limited Internally limited ­ 65 to + 150 ­ 55 to + 150 0 to + 150 °C °C °C Unit V V THERMAL DATA TO-220 R t h j- cas e Thermal Resistance Junction-case R t h j -amb Thermal Resistance Junction-ambient Max Max 3 50 TO-3 4 35 °C/W °C/W CONNECTION DIAGRAMS AND ORDERING NUMBERS (top views) Type L78S05 L78S05C L78S75 L78S75C L78S09 L78S09C L78S10 L78S10C L78S12 L78S12C L78S15 L78S15C L78S18 L78S18C L78S24 L78S24C T O- 22 0 L78S05CV L78S75CV L78S09CV L78S10CV L78S12CV L78S15CV L78S18CV L78S24CV TO-3 L78S05T L78S05CT L78S75T L78S75CT L78S09T L78S09CT L78S10T L78S10CT L78S12T L78S12CT L78S15T L78S15CT L78S18T L78S18CT L78S24T L78S24CT Output Voltage 5V 5V 7.5V 7.5V 9V 9V 10V 10V 12V 12V 15V 15V 18V 18V 24V 24V 2/21 L78S00 SERIES APPLICATION CIRCUIT SCHEMATIC DIAGRAM 3/21 L78S00 SERIES TEST CIRCUITS Figure 1 : DC Parameters. Figure 2 : Load Regulation. Figure 3 : Ripple Rejection. 4/21 L78S00 SERIES ELECTRICAL CHARACTERISTICS FOR L78S05 (refer to the test circuits, Tj = 25 oC, Vi = 10V, Io = 500 mA unless otherwise specified) Symbol Vo Vo Vo Vo Id Id Id Vo T eN SVR Vi Ro Isc Iscp Parameter Output Voltage Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Quiescent Current Change Output Voltage Drift Output Noise Voltage Supply Voltage Rejection Operating Input Voltage Output Resistance Short Circuit Current Short Circuit Peack Current Io = 20 mA to 1A Io = 20 mA Vi = 7 to 25 V Io = 5 mA Tj = -55 to 150 oC -1.1 40 60 8 17 500 3 o Test Conditions Io = 1 A Vi = 7 to 25 V Vi = 8 to 25 V Io = 20 mA to 2 A Vi = 7 V Min. 4.8 4.75 Typ. 5 5 Max. 5.2 5.25 100 50 100 8 0.5 1.3 Unit V V mV mV mV mA mA mA mV/oC µV dB V m mA A B = 10Hz to 100KHz f = 120 Hz Io 1.5 A f = 1KHz Vi = 27 V ELECTRICAL CHARAC

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