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L4931ABXX35 Datasheet(PDF) 1 Page - STMicroelectronics |
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L4931ABXX35 Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 36 page August 2008 Rev 17 1/36 36 L4931ABxx L4931Cxx Very low drop voltage regulators with inhibit Features ■ Very low dropout voltage (0.4 V) ■ Very low quiescent current ■ (Typ. 50 µA in off mode, 600 µA in on mode) ■ Output current up to 250 mA ■ Logic-controlled electronic shutdown ■ Output voltages of 2.7; 3.3; 3.5; 5; 8; 12 V ■ Automotive Grade product: 2.7 V, 3.3 V, 3.5 V VOUT only in SO-8 package ■ Internal current and thermal limit ■ Only 2.2 µF for stability ■ Available in ± 1 % (AB) or 2 % (C) selection at 25 °C ■ Supply voltage rejection: 70 dB typ. for 5 V version ■ Temperature range: -40 to 125 °C Description The L4931ABxx L4931Cxx are very Low Drop regulators available in TO-220, SO-8, DPAK, PPAK and TO-92 packages and in a wide range of output voltages. The very low drop voltage (0.4 V) and the very low quiescent current make them particularly suitable for low noise, low power applications and specially in battery powered systems. A TTL compatible shutdown logic control function is available in PPAK and SO-8 packages. This means that when the device is used as a local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. It requires only a 2.2 µF capacitor for stability allowing space and cost saving. The L4931 is available as Automotive Grade in SO-8 package only, for the options of output voltages whose commercial Part Numbers are shown in the Table 19 on page 34 (order codes). These devices are qualified according to the specification AEC-Q100 of the Automotive market, in the temperature range -40 °C to 125 °C, and the statistical tests PAT, SYL, SBL are performed. TO-92 DPAK TO-220 PPAK SO-8 Table 1. Device summary Part numbers L4931ABXX27 L4931CXX33 L4931ABXX50 L4931CXX80 L4931CXX27 L4931ABXX35 L4931CXX50 L4931ABXX120 L4931ABXX33 L4931CXX35 L4931ABXX80 L4931CXX120 www.st.com |
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