LDS3985PU28R STMicroelectronics

LDS3985 Very low drop and low noise BiCMOS 300 mA voltage regulator Datasheet - production data Logic-controlled electronic shutdown Internal current and thermal limit Low output voltage noise: 30 VRMS over 10 Hz to 100 kHz SVR of 55 dB at 1 kHz, 50 dB at 10 kHz Temperature range: - 40 C to 125 C Automotive grade product available in DFN6 package, temperature range: - 40 C to 85 C Features Description Input voltage from 2.5 V to 6 V The LDS3985 provides up to 300 mA, from 2.5 V Stable with low ESR ceramic capacitors to 6 V input voltage. It is stable with ceramic and Very low dropout voltage (150 mV typ. at high quality tantalum capacitor. The ultra low 300 mA load, 0.4 mV typ. at 1 mA load) drop voltage, low quiescent current and low noise Very low quiescent current (85 A typ. at no make it suitable for low power applications and load, 200 A typ. at 300 mA load max. battery-powered systems. Shutdown logic control 1.5 A in OFF mode) function is available, this means that when the Guaranteed output current up to 300 mA device is used as local regulator, it is possible to Wide range of output voltages available on put a part of the board in standby, decreasing the request: fixed from 1.25 V to 5 V with total power consumption. Typical applications are 100 mV step mobile phones and similar battery-powered Fast turn-on time: typ. 240 s wireless systems, portable information C = 2.2 F, C = 33 nF and O BYP appliances. IO = 1 mA Table 1: Device summary Packages Output voltage (V) DFN6 (3 x 3 mm) SOT23-5L DFN6 (3 x 3 mm) automotive-grade LDS3985M15R LDS3985PU15R 1.5 (1) LDS3985M18R LDS3985PU18RY 1.8 LDS3985M25R 2.5 LDS3985M28R LDS3985PU28R 2.8 LDS3985M30R 3.0 (1) LDS3985PU33RY LDS3985M33R LDS3985PU33R 3.3 LDS3985M50R 5.0 Notes: (1) Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 and Q002 or equivalent. May 2017 DocID11039 Rev 10 1/21 www.st.com This is information on a product in full production. Contents LDS3985 Contents 1 Diagram ............................................................................................ 3 2 Pin configuration ............................................................................. 4 3 Maximum ratings ............................................................................. 5 4 Electrical characteristics ................................................................ 6 5 Typical performance characteristics ........................................... 10 6 Package information ..................................................................... 13 6.1 SOT23-5L package information ...................................................... 13 6.2 SOT23-5L packing information ........................................................ 15 6.3 DFN6 (3 x 3 mm) package information ........................................... 16 6.4 DFN6 (3 x 3 mm) packing information ............................................. 18 7 Revision history ............................................................................ 20 2/21 DocID11039 Rev 10