78L05

78L05 Description This series of fixed-voltage monolithic integrated-circuit voltage regulators is designed for a wide range of applications. These applications include on-card regulation for elimination of noise and distribution problems associated with single-point regulation. In addition, they can be used with power-pass elements to make high-current voltage regulators. Each of these regulators can deliver up to100 mA of output current. The internal limiting and termal shutdown features of these regulators make them essentially immune to overload. When used as a replacement for a Zener diode-resistor combination, an effective improvement in output impedance can be obtained together with lower-bias current. Features Output current in excess of 100 mA No external components required I nternal short circuit current limiting Internal thermal overload protection Available in either 5% selections Package TO-92 (top view Internal Block Digram Package OC I BEIJING ESTEK ELECTRONICS CO.,LTD 1 78L05 Absolute Maximum Ratings Maximum Input Voltage: 30V Operation Junction Temperature Range: -40 ℃ to 125 ℃ Electrical Characteristics (Vin = 10V, Io =40mA , Ci=0.33µ , Co=0.1µ ,Tj = +25°, unless otherwise noted) F F C Characteristics Symbol Test Condition min max Unit Output Voltage Line Regulation Load Regulation Vo ∆v V ∆i V 7.0V≤Vin≤20V; 1.0mA≤Io≤40mA 1.0mA≤Io≤70mA 7.0V≤Vin≤20V 8.0V≤Vin≤20V 1.0mA ≤Io≤100mA 1.0mA ≤Io≤40mA Quiescent Current Ib Quiescent Current Change ∆ Ib 8.0V≤Vin≤20V 1.0mA ≤Io≤40mA 4.85 5.15 4.85 5.15 - 135 90 54 27 5.8 1.4 0.09 V mV mV mA mA Typical Applications Circuit VI 0.33 μ F 78L05 VO 0.1 μ F Figure 1. Fixed-Output Regulator BEIJING ESTEK ELECTRONICS CO.,LTD 2 78L05 + VI – IN 78L05 C OM OUT G IL –O V Figure 2. Positive Regulator in Negative Configuration (VI Must Float) Input 78L05 R1 IO 0.33 μ F R2 Output 0.1 μ F Figure 3. Adjustable-Output Regulator Ordering Information O R DER I NG NU M B E R 78L05 P AC K AGE TO – 92 M AR K I NG ET78L05 Address : Postalcode:100039 Tel: 86-010-58895780 / 81 / 82 / 83 / 84 Http://www.estek.com.cn Email:sales@estek.com.cn 6A06--6A07 Rm 6A07,Changyin Office Building ,No.88,Yong Ding Road,Hai Dian District ,Beijing Fax : 010-58895793 REV No:01-060828 BEIJING ESTEK ELECTRONICS CO.,LTD 3