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78M20C Dataheets PDF



Part Number 78M20C
Manufacturers STMicroelectronics
Logo STMicroelectronics
Description POSITIVE VOLTAGE REGULATORS
Datasheet 78M20C Datasheet78M20C Datasheet (PDF)

L78M TO-220 TO-220FP DPAK IPAK Features • Output current to 0.5 A • Output voltages of 5; 6; 8; 9; 10; 12; 15; 24 V • Thermal overload protection • Short circuit protection • Output transition SOA protection • Output voltage tolerance: 2% (AB and AC versions) or 4% (C version) • Guaranteed in extended temperature range Precision 500 mA regulators Datasheet - production data Description The L78M series of three-terminal positive regulators is available in TO-220, TO-220FP, DPAK and IPAK pac.

  78M20C   78M20C



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L78M TO-220 TO-220FP DPAK IPAK Features • Output current to 0.5 A • Output voltages of 5; 6; 8; 9; 10; 12; 15; 24 V • Thermal overload protection • Short circuit protection • Output transition SOA protection • Output voltage tolerance: 2% (AB and AC versions) or 4% (C version) • Guaranteed in extended temperature range Precision 500 mA regulators Datasheet - production data Description The L78M series of three-terminal positive regulators is available in TO-220, TO-220FP, DPAK and IPAK 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 shutdown and safe area protection, resulting it essentially indestructible. If adequate heat sinking is provided, they can deliver over 0.5 A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltage and currents. June 2014 This is information on a product in full production. DocID2146 Rev 20 1/46 www.st.com Contents Contents L78M 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 7 Applications information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 7.1 Design considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 9 Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 10 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 11 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 2/46 DocID2146 Rev 20 L78M 1 Diagram Figure 1. Block diagram Diagram DocID2146 Rev 20 3/46 46 Pin configuration 2 Pin configuration Figure 2. Pin connections (top view) L78M TO-220 TO220FP DPAK Figure 3. Schematic diagram IPAK 4/46 DocID2146 Rev 20 L78M 3 Maximum ratings Maximum ratings Table 1. Absolute maximum ratings Symbol Parameter VI IO PD TSTG TOP DC input voltage Output current for VO = 5 to 18 V for VO = 20, 24 V Power dissipation Storage temperature range for.


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