LD39300 Ultra low drop BICMOS voltage regulator Datasheet - production data Application Microprocessor power supply DSPs power supply Post regulators for switching power supplies High efficiency linear regulator PPAK DPAK Description The LD39300 is a fast ultra low drop linear regulator which operates from 2.5 V to 6 V input Features supply. A wide range of output options are available. The 3 A guaranteed output current low drop voltage, low noise, and ultra low Ultra low dropout voltage (200 mV typ. 3 A quiescent current make it suitable for low voltage load, 40 mV typ. 600 mA load) microprocessor and memory applications. The Very low quiescent current (1.2 mA typ. 3 A device is developed on a BiCMOS process which load, 1 A max 25 C in off mode) allows low quiescent current operation independently of output load current. Logic-controlled electronic shutdown Current and thermal internal limit 1.5% output voltage tolerance 25 C Fixed and ADJ output voltages: 1.22 V, 1.8 V, 2.5 V, 3.3 V, ADJ Temperature range: -40 to 125 C Fast dynamic response to line and load changes Stable with ceramic capacitor Available in PPAK and DPAK Table 1. Device summary Part numbers Output voltage DPAK PPAK LD39300DT12-R 1.22V (1) LD39300DT18-R LD39300PT18-R 1.8V (1) LD39300DT25-R LD39300PT25-R 2.5V (1) LD39300DT33-R LD39300PT33-R 3.3V LD39300PT-R ADJ from 1.22 to 5.0V 1. Available on request June 2014 DocID13160 Rev 2 1/23 This is information on a product in full production. www.st.comContents LD39300 Contents 1 Diagram . 3 2 Pin configuration . 4 3 Typical application circuits . 5 4 Maximum ratings 7 5 Electrical characteristics . 8 6 Typical performance characteristics . 10 7 Application notes 13 7.1 External capacitors 13 7.2 Input capacitor . 13 7.3 Output capacitor 13 7.4 Thermal note 13 7.5 Inhibit input operation 13 8 Package mechanical data 14 9 Packaging mechanical data 20 10 Revision history . 22 2/23 DocID13160 Rev 2