L4993D STMicroelectronics

L4993 Automotive low drop voltage regulator Datasheet - production data Description The L4993 is a monolithic integrated 5 V Voltage regulator with a low drop voltage at currents up to 150 mA.The output voltage regulating element consists in a p-channel MOS and the regulation is * 3*&)7 * 3*&)7 performed regardless of input voltage transients SO-8 SO-20 up to 40 V. The high precision of the output voltage is obtained with a pre-trimmed reference voltage. The L4993 is protected against short circuit and an over-temperature protection Features switches off the device in case of extremely high Max DC supply voltage V 40 V power dissipation. The L4993 watchdog is active S when the Enable is high. State of the art features Max output voltage tolerance V +/-2% 0 like reset and watchdog make this device Max dropout voltage V 400 mV dp particularly suitable to supply microprocessor Output current I 150 mA 0 systems in automotive applications. (1) Quiescent current I 79 A qn 1. Typical value with watchdog disabled. AEC-Q100 qualified Operating DC supply voltage range 5.6 V to 31 V Reset circuit sensing the output voltage down to 1 V Programmable reset pulse delay with external capacitor Watchdog Programmable watchdog timer with external Enable input for enabling/disabling the watchdog functionality Thermal shutdown and short circuit protection Wide temperature range (Tj = -40C to 150C) Table 1. Device summary Order codes Package Tube Tape & reel SO-8 L4993DTR SO-20 (16+2+2) L4993MD L4993MDTR September 2018 DS5285 Rev 10 1/31 This is information on a product in full production. www.st.comContents L4993 Contents 1 Block diagram and pins description 5 2 Electrical specifications 7 2.1 Absolute maximum ratings . 7 2.2 Thermal data . 7 2.3 Electrical characteristics . 8 2.4 Electrical characteristics curves .11 2.5 Test circuit and waveforms plot 14 2.5.1 Load regulation . 14 3 Application information . 16 3.1 Voltage regulator . 16 3.2 Reset 17 3.3 Watchdog . 18 4 Package and PCB thermal data . 19 4.1 SO-8 thermal data 19 4.2 SO-20 thermal data . 22 5 Package and packing information . 25 5.1 ECOPACK . 25 5.2 SO-8 package information 25 5.3 SO-20 package information . 27 5.4 SO-8 packing information . 28 5.5 SO-20 packing information 29 6 Revision history . 30 2/31 DS5285 Rev 10