LDFPUR STMicroelectronics

LDF 1 A very low drop voltage regulator Datasheet - production data Applications Computer and laptop Battery-powered equipments Industrial and medical equipment Consumer and set-top box Description The LDF is a fast, very low drop linear regulator which operates from an input supply voltage in the range of 2.6 V to 16 V. It is available in fixed and adjustable output voltage versions, from 0.8 V to 12 V. The LDF features are: high output precision, very low-dropout voltage, low noise, and low quiescent current, therefore suitable for low voltage microprocessors and memory Features applications. Input voltage from 2.6 to 16 V Enable logic control pin and power-good output Very low-dropout voltage (500 mV max. at are featured on PPAK/DFN packages. 1 A load) Current and thermal protection are provided. Low quiescent current (200 A typ. 1 A load) Available in 1% precision in PPAK and DFN6 packages, 2% in DPAK 1 A guaranteed output current Wide range of output voltages available on request: adjustable from 0.8 V, fixed up to 12 V in 100 mV steps Logic-controlled electronic shutdown Power Good (PPAK and DFN packages) Fast dynamic response to line and load changes Internal current and thermal protections Temperature range: -40 C to 125 C April 2017 DocID025502 Rev 2 1/33 www.st.com This is information on a product in full production. Contents LDF Contents 1 Block diagram .................................................................................. 3 2 Pin configuration ............................................................................. 4 3 Typical application .......................................................................... 5 4 Absolute maximum ratings ............................................................. 6 5 Electrical characteristics ................................................................ 7 6 Application information ................................................................ 11 6.1 External capacitors .......................................................................... 11 6.1.1 Input capacitor .................................................................................. 11 6.1.2 Output capacitor ............................................................................... 11 6.2 Output voltage setting for ADJ version ............................................ 11 6.3 Enable pin operation ....................................................................... 11 6.4 Power Good .................................................................................... 11 7 Typical characteristics .................................................................. 12 8 Package information ..................................................................... 16 8.1 DFN6 (3x3) package information .................................................... 16 8.2 DFN6 (3x3) packing information ...................................................... 18 8.3 DFN6 (2x2) package information .................................................... 20 8.4 DFN6 (2x2) packing information ...................................................... 23 8.5 PPAK package information ............................................................. 24 8.6 DPAK package information ............................................................. 26 8.7 PPAK and DPAK packing information ............................................. 29 9 Ordering information ..................................................................... 31 10 Revision history ............................................................................ 32 2/33 DocID025502 Rev 2