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LD39150DT33-R Scheda tecnica(PDF) 1 Page - STMicroelectronics |
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LD39150DT33-R Scheda tecnica(HTML) 1 Page - STMicroelectronics |
1 / 19 page January 2009 Rev 2 1/19 19 LD39150xx Ultra low drop BiCMOS voltage regulator Features ■ 1.5 A guaranteed output current ■ Ultra low dropout voltage (200 mV typ. @ 1.5 A load, 40 mV typ. @ 300 mA load) ■ Very low quiescent current (1 mA typ. @ 1.5 A load, 1 µA max @ 25 °C in off mode) ■ 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. (see Table 1) ■ Temperature range: -40 to 125 °C ■ Fast dynamic response to line and load changes ■ Stable with ceramic capacitor (see Section 7.1, Section 7.2 and Section 7.3) ■ Available in PPAK, DPAK and DFN6 (3x3 mm) Typical application ■ Microprocessor power supply ■ DSPs power supply ■ Post regulators for switching suppliers ■ High efficiency linear regulator Description The LD39150xx is a fast ultra low drop linear regulator which operates from 2.5 V to 6 V input supply. A wide range of output options are available. The low drop voltage, low noise, and ultra low quiescent current make it suitable for low voltage microprocessor and memory applications. The device is developed on a BiCMOS process which allows low quiescent current operation independently of output load current. DFN6 (3x3 mm) PPAK DPAK Table 1. Device summary Part numbers Order codes Output voltages DPAK (T&R) PPAK (T&R) DFN (1) LD39150XX12 LD39150DT12-R LD39150PU12R 1.22 V LD39150XX18 LD39150DT18-R LD39150PT18-R LD39150PU18R 1.8 V LD39150XX25 LD39150DT25-R LD39150PT25-R LD39150PU25R 2.5 V LD39150XX33 LD39150DT33-R LD39150PT33-R LD39150PU33R 3.3 V LD39150XX LD39150PT-R LD39150PU-R ADJ from 1.22 to 5.0 V 1. Available on request. www.st.com |
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