LD1086 1.5 A adjustable and fixed low drop positive voltage regulator Datasheet - production data Description The LD1086 is a low drop voltage regulator capable of providing up to 1.5 A of output current. Dropout is guaranteed at a maximum of 1.2 V at the maximum output current, decreasing at lower loads. The LD1086 is pin-to-pin compatible with older 3-terminal adjustable regulators, but has DPAK better performance in terms of drop and output TO-220 tolerance. Unlike PNP regulators, where a part of the output current is wasted as quiescent current, the LD1086 quiescent current flows into the load, increasing efficiency. Only a 10 F (minimum) capacitor is needed for stability. The device is available in a TO-220, DPAK, DPAK/A, DPAK or DFN8 (4x4) package. On-chip trimming allows the DPAK/A DPAK DFN8 (4x4) regulator to reach a very tight output voltage tolerance within 1% at 25 C. The LD1086 is available as automotive grade for adjustable output voltages in the TO-220 and DPAK Features packages. The PAT, SYL, SBL statistical tests Typical dropout: 1.3 V at 1.5 A have been performed, and the devices are qualified according to the AEC-Q100 specification Three-terminal adjustable or fixed output for the automotive market in the temperature voltage: 1.8 V, 2.5 V, 3.3 V, 5 V, 12 V range of - 40 C to 125 C. Automotive grade (adjustable V in TO-220 OUT and DPAK packages only) Output current guaranteed up to 1.5 A Output tolerance: 1% at 25 C and 2% in full temperature range Internal power and thermal limit Wide operating temperature range - 40 C to 125 C Package available: TO-220, DPAK, DPAK/A, DPAK and DFN8 (4x4) Pinout compatibility with standard adjustable voltage regulators December 2017 DocID6739 Rev 36 1/42 This is information on a product in full production. www.st.comContents LD1086 Contents 1 Diagram . 5 2 Pin configuration 6 3 Maximum ratings 7 4 Schematic application . 8 5 Electrical characteristics . 9 6 Typical application . 17 7 Package information 22 7.1 TO-220 (STD-ST dual gauge) type A package information . 23 7.2 DPAK package information . 25 7.3 DPAK (SMD 2L STD-ST) type A package information 28 7.4 DPAK (SMD 3L STD-ST) type A package information 30 7.5 DPAK and DPAK packing information . 33 7.6 DFN8 (4x4) package information . 35 7.7 DFN8 (4x4) packing information 37 8 Ordering information . 39 9 Revision history . 40 2/42 DocID6739 Rev 36
