L4931 Very low drop voltage regulators with inhibit Datasheet - production data Description The L4931 is a very low drop regulator available in SO-8, DPAK, PPAK and TO-92 packages and in a wide range of output voltages. The very low drop voltage (0.4 V) and the very PPAK low quiescent current make it particularly suitable TO-92 for low noise, low power applications and especially in battery-powered systems. A TTL compatible shutdown logic control function is available in PPAK and SO-8 packages. This SO-8 means that when the device is used as a local DPAK regulator, a part of the board can be put in standby mode, decreasing the total power consumption. It requires only a 2.2 F capacitor Features for stability allowing space and cost saving. Very low dropout voltage (0.4 V) The L4931 is available as automotive-grade in Very low quiescent current SO-8 package only. This device is qualified according to the specification AEC-Q100 of the Typ. 50 A in OFF mode, 600 A in ON mode automotive market, in the temperature range from Output current up to 250 mA 40 C to 125 C, and the statistical tests: PAT, Logic controlled electronic shutdown SYL, SBL are performed. Output voltages: 2.7 3.3 3.5 5 8 12 V in Automotive-grade product: 2.7 V, 3.3 V V OUT SO-8 package only Internal current and thermal limit Only 2.2 F for stability Available in 1% (AB) or 2% (C) selection at 25 C Supply voltage rejection: 70 dB typ. for 5 V version Temperature range: from -40 to 125 C October 2013 DocID4340 Rev 18 1/38 This is information on a product in full production. www.st.com 38Contents L4931 Contents 1 Diagram . 5 2 Pin configuration . 6 3 Maximum ratings 7 4 Application circuit 8 5 Electrical characteristics . 9 6 Typical application . 22 7 Package mechanical data 23 8 Packaging mechanical data 31 9 Ordering information . 36 10 Revision history . 37 2/38 DocID4340 Rev 18