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LD2979XX50 Datasheet(PDF) 1 Page - STMicroelectronics |
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LD2979XX50 Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 15 page April 2008 Rev 14 1/15 15 LD2979xx Very low drop voltage regulators with inhibit Features ■ Very low dropout voltage (0.2 V typ. at 50 mA load) ■ Very low quiescent current (typ. 500 µA at 50 mA load) ■ Output current up to 50 mA ■ Logic-controlled electronic shutdown ■ Output voltages of 3.0; 3.3; 3.8; 5.0 V ■ Internal current and thermal limit ■ Supply voltage rejection: 63 dB (typ) ■ Only 1 µF for stability ■ Selection at 25 °C ■ Temperature range: -25 °C to 125 °C ■ Package available: SOT23-5L Description The LD2979 series are very low drop regulators available in SOT23-5L. The very low drop-voltage and the very low quiescent current make them particularly suitable for low noise, low power applications and in battery powered systems. Shutdown logic control function is available on five pin version (TTL compatible). This means that when the device is used as local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. SOT23-5L Table 1. Device summary Part numbers Order codes Output voltages LD2979XX30 LD2979M30TR 3.0 V LD2979XX33 LD2979M33TR 3.3 V LD2979XX38 LD2979M38TR 3.8 V LD2979XX50 LD2979M50TR 5.0 V www.st.com |
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