LM78S40CN/NOPB National Semiconductor, LM78S40CN/NOPB Datasheet
LM78S40CN/NOPB
Specifications of LM78S40CN/NOPB
*LM78S40CN/NOPB
78S40
LM78S40CN
Related parts for LM78S40CN/NOPB
LM78S40CN/NOPB Summary of contents
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... It is useful for any stand-alone, low part count switching system and works extremely well in battery operated systems. Block and Connection Diagrams © 1998 National Semiconductor Corporation DS010057 Features n Step-up, step-down or inverting switching regulators n Output adjustable from 1.25V to 40V n Peak currents to 1 ...
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Ordering Information Part Number NS Package LM78S40J/883 J16A Ceramic DIP LM78S40N N16E Molded DIP LM78S40CN N16E Molded DIP www.national.com Temperature Range −55˚C to +125˚C −40˚C to +125˚C 0˚C to +70˚C 2 ...
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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Storage Temperature Range Ceramic DIP Molded DIP Operating Temperature Range Extended (LM78S40J) Industrial (LM78S40N) Commercial (LM78S40CN) Lead Temperature Ceramic DIP (Soldering, 60 sec.) Molded DIP (Soldering, 10 sec ...
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LM78S40 Electrical Characteristics = Operating temperature range 5.0V Symbol Parameter OUTPUT SWITCH SECTION h Output Transistor Current FE Gain I Output Leakage Current L POWER DIODE V Forward Voltage Drop FD I Diode Leakage ...
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Typical Performance Characteristics C vs OFF Time T DS010057-6 Discharge Current vs Input Voltage DS010057-8 Design Formulas Characteristic Step-Down ( Max on off − Max ...
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Functional Description SWITCHING FREQUENCY CONTROL The LM78S40 is a variable frequency, variable duty cycle device. The initial switching frequency is set by the timing capacitor. (Oscillator frequency is set by a single external capacitor and may be varied over a ...
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Typical Applications (Continued) FIGURE 2. Typical Step-Up Regulator and = 25˚C) Operational Performance (T A Characteristic Condition = 50 mA Output Voltage I O Line Regulation 5.0V V 15V I Load Regulation 5 100 mA O ...
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Typical Applications (Continued) FIGURE 4. Pulse Width Modulated Step-Down Regulator (f www.national.com DS010057- kHz) OSC 8 ...
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Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Ceramic Dual-In-Line Package (J) 16-Lead Molded Dual-In-Line Package (N) Order Number LM78S40N or LM78S40CN Order Number LM78S40J/883 NS Package Number J16A NS Package Number N16A 9 www.national.com ...
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... National Semiconductor Asia Pacific Customer Fax: +49 (0) 1 80-530 85 86 Response Group Email: europe.support@nsc.com Tel: 65-2544466 Fax: 65-2504466 Tel: +49 (0) 1 80-532 78 32 Email: sea.support@nsc.com Tel: +49 (0) 1 80-534 16 80 National Semiconductor Japan Ltd. Tel: 81-3-5620-6175 Fax: 81-3-5620-6179 ...