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LD39100PU33R Arkusz danych(PDF) 1 Page - STMicroelectronics |
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LD39100PU33R Arkusz danych(HTML) 1 Page - STMicroelectronics |
1 / 24 page Preliminary data This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. April 2010 Doc ID 15676 Rev 2 1/24 24 LD39100XX LD39100XX12, LD39100XX25 1 A, low quiescent current, low noise voltage regulator Features ■ Input voltage from 1.5 to 5.5 V ■ Ultra low dropout voltage (200 mV typ. at 1 A load) ■ Very low quiescent current (20 µA typ. at no load, 200 µA typ. at 1 A load, 1 µA max in off mode) ■ Very low noise with no bypass capacitor (30 µVRMS at VOUT = 0.8 V) ■ Output voltage tolerance: ± 2.0 % @ 25 °C ■ 1 A 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 ■ Stabilized with ceramic capacitors COUT = 1 µF ■ Internal current and thermal limit ■ DFN6 (3 x 3 mm) package ■ Temperature range: - 40 °C to 125 °C Description The LD39100xx provides 1 A maximum current from an input voltage ranging from 1.5 V to 5.5 V with a typical dropout voltage of 200 mV. The deveice is stable due to the use of ceramic capacitors on the input and output. The ultra low drop-voltage, low quiescent current and low noise 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. An enable logic control function puts the LD39100xx in shutdown mode, allowing a total current consumption lower than 1 µA. The device also includes short-circuit constant current limiting and thermal protection. Typical applications are printers, personal digital assistants (PDAs), cordless phones and consumer applications. DFN6 (3 x 3 mm) Table 1. Device summary Part numbers Order codes Output voltages LD39100XX LD39100PUR Adj. from 0.8 V LD39100XX12 LD39100PU12R 1.2 V LD39100XX25 LD39100PU25R 2.5 V www.st.com |
Podobny numer części - LD39100PU33R |
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Podobny opis - LD39100PU33R |
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