LD39050PUR STMicroelectronics

LD39050 500 mA low quiescent current and low noise voltage regulator Datasheet - production data Description The LD39050 provides 500 mA maximum current with an input voltage range from 1.5 V to 5.5 V and a typical dropout voltage of 200 mV. Stability is given by ceramic capacitors. The ultra low drop voltage, low quiescent current and low noise )1 PP )1 PP features make it suitable for low power battery- powered applications. Power supply rejection is 65 dB at low frequencies and starts to roll off at 10 kHz. The enable logic control function puts the LD39050 in shutdown mode allowing a total Features current consumption lower than 1 A. The device Input voltage from 1.5 to 5.5 V also includes short-circuit constant current limiting and thermal protection. Typical applications are Ultra low-dropout voltage (200 mV typ. at 500 mobile phones, hard disks and battery-powered mA load) systems. Very low quiescent current (20 A typ. at no load, 100 A typ. at 500 mA load, 1 A max. in OFF mode) Very low noise without bypass capacitor Output voltage tolerance: 2.0% 25 C 500 mA guaranteed output current Wide range of output voltages available on request: 0.8 V to 4.5 V with 100 mV step and adjustable from 0.8 V Logic-controlled electronic shutdown Compatible with ceramic capacitor C = 1 F OUT Internal current and thermal limit Package DFN6 (3x3 mm) and DFN6 (2x2 mm) Temperature range: from -40 C to 125 C December 2019 DocID15470 Rev 5 1/28 This is information on a product in full production. www.st.comContents LD39050 Contents 1 Diagrams 3 2 Pin configuration 4 3 Maximum ratings 6 4 Electrical characteristics . 7 5 Typical performance characteristics . 11 6 Application information . 16 6.1 Power dissipation . 17 6.2 Enable function 18 6.3 Power Good function 18 7 Package information 19 7.1 DFN6 (3x3 mm) package information . 20 7.2 DFN6 (3x3 mm) packing information 22 7.3 DFN6 (2x2 mm) package information . 24 8 Ordering information . 26 9 Revision history . 27 2/28 DocID15470 Rev 5