LFXX Very low drop voltage regulator with inhibit function Datasheet - production data Description The LFXX is a very low drop regulator available in TO-220, TO-220FP, DPAK and PPAK packages and in a wide range of output voltages. The low drop voltage (0.45 V) and low quiescent current make it particularly suitable for low-noise, low- TO-220FP TO-220 power applications and especially in battery- powered systems. In the 5 pin configuration (PPAK) a shutdown logic control function is available (pin 2, TTL compatible). This means that when the device is used as a local regulator, a part of the board can be put in standby, PPAK DPAK decreasing the total power consumption. In the three terminal configuration, the device has the same electrical performance, but it is fixed in ON state. It requires a capacitor of only 2.2 F for stability, saving board space and costs. The LFXX Features is available as automotive grade in DPAK and Very low-dropout voltage (0.45 V) PPAK packages, for the options of output voltages whose commercial part numbers are Very low quiescent current (typ. 50 A in OFF shown in the order codes. These devices are mode, 500 A in ON mode) qualified according to the specification AEC-Q100 Output current up to 500 mA of the automotive market, in the temperature Logic-controlled electronic shutdown range - 40 C to 125 C, and the statistical tests PAT, SYL, SBL are performed. Output voltages of 1.5 1.8 2.5 3.3 4.7 5 6 8 8.5 9 12 V Automotive grade product: 1.8 V, 2.5 V, 3.3 V, 5.0 V, 8.0 V, 8.5 V V in DPAK and PPAK OUT packages 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: 80 db (typ.) Temperature range: from -40 to 125 C February 2014 DocID2574 Rev 27 1/53 This is information on a product in full production. www.st.comContents LFXX Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 6 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 7 Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 8 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 2/53 DocID2574 Rev 27