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-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, decreasing the total power consumption. In the Features three terminal configuration, the device has the same electrical performance, but it is fixed in ON Very low-dropout voltage (0.45 V) state. It requires a capacitor of only 2.2 F for Very low quiescent current (typ. 50 A in stability, saving board space and costs. The OFF mode, 500 A in ON mode) LFXX is available as automotive grade in DPAK Output current up to 500 mA and PPAK packages, for the options of output Logic-controlled electronic shutdown voltages whose commercial part numbers are Output voltages of 1.5 1.8 2.5 3.3 4.7 5 shown in the order codes. These devices are 6 8 8.5 9 12 V qualified according to the specification Automotive grade product: 1.8 V, 2.5 V, AEC-Q100 of the automotive market, in the 3.3 V, 5.0 V, 8.0 V, 8.5 V V in DPAK and OUT temperature range -40 C to 125 C, and the PPAK packages statistical tests PAT, SYL, SBL are performed. Internal current and thermal limit Only 2.2 F for stability Available in 1% (AB), 1.5% (AC) or 2% (C) selection at 25 C Supply voltage rejection: 80 db (typ.) Temperature range: from -40 to 125 C May 2017 DocID2574 Rev 31 1/53 www.st.com This is information on a product in full production. Contents LFXX Contents 1 Diagram ............................................................................................ 3 2 Pin configuration ............................................................................. 4 3 Maximum ratings ............................................................................. 5 4 Electrical characteristics ................................................................ 6 5 Typical performance characteristics ........................................... 33 6 Package information ..................................................................... 38 6.1 TO-220 (dual gauge) package information ...................................... 38 6.2 TO-220 (single gauge) package information ................................... 40 6.3 TO-220FP package information ...................................................... 42 6.4 TO-220 packing information ............................................................ 44 6.5 DPAK package information ............................................................. 45 6.6 PPAK package information ............................................................. 47 6.7 PPAK and DPAK packing information ............................................. 49 7 Ordering information ..................................................................... 51 8 Revision history ............................................................................ 52 2/53 DocID2574 Rev 31