L4940D2T12-TR STMicroelectronics

L4940 1.5 A very low drop voltage regulator IC Datasheet - production data Table 1. Device summary Order code Output voltages TO-220 DPAK L4940V5 L4940D2T5-TR 5 V L4940V85 8.5 V L4940D2T12-TR 12 V TO-220 DPAK Features Precise 5, 8.5, 12 V outputs Low dropout voltage (450 mV typ. at 1 A) Very low quiescent current Thermal shutdown Short-circuit protection Reverse polarity protection Description The L4940 series of three-terminal positive regulators is available in TO-220 and DPAK packages and with several fixed output voltages, making it useful in a wide range of industrial and consumer applications. Thanks to their very low input/output voltage drop, these devices are particularly suitable for battery-powered equipment, reducing consumption and prolonging battery-life. Each type employs internal current limiting, anti-saturation circuit, thermal shutdown and safe area protection. April 2015 DocID2141 Rev 14 1/25 This is information on a product in full production. www.st.comContents L4940 Contents 1 Block diagram 3 2 Pin configuration . 4 3 Maximum ratings 5 4 Test circuits . 6 5 Electrical characteristics . 7 6 Performance characteristics 9 7 Application circuits . 13 8 Package information 15 8.1 TO-220 (dual gauge) package information 16 8.2 TO-220 (dual gauge) packing information 18 8.3 DPAK package information . 19 8.4 DPAK packing information . 22 9 Revision history . 24 2/25 DocID2141 Rev 14