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LM2931CT 데이터시트(PDF) 1 Page - Texas Instruments |
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LM2931CT 데이터시트(HTML) 1 Page - Texas Instruments |
1 / 19 page LM2931-N www.ti.com SNOSBE5G – MARCH 2000 – REVISED APRIL 2013 LM2931-N Series Low Dropout Regulators Check for Samples: LM2931-N 1 FEATURES DESCRIPTION The LM2931-N positive voltage regulator features a 2 • Very Low Quiescent Current very low quiescent current of 1mA or less when • Output Current in Excess of 100 mA supplying 10mA loads. This unique characteristic and • Input-output Differential Less than 0.6V the extremely low input-output differential required for proper regulation (0.2V for output currents of 10mA) • Reverse Battery Protection make the LM2931-N the ideal regulator for standby • 60V Load Dump Protection power systems. Applications include memory standby • −50V Reverse Transient Protection circuits, CMOS and other low power processor power supplies as well as systems demanding as much as • Short Circuit Protection 100mA of output current. • Internal Thermal Overload Protection Designed originally for automotive applications, the • Mirror-image Insertion Protection LM2931-N and all regulated circuitry are protected • Available in TO-220, TO-92, TO-263, or SOIC-8 from reverse battery installations or 2 battery jumps. Packages During line transients, such as a load dump (60V) • Available as Adjustable with TTL Compatible when the input voltage to the regulator can Switch momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both internal circuits and the load. The LM2931-N cannot be harmed by temporary mirror-image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided. The LM2931-N family includes a fixed 5V output (±3.8% tolerance for A grade) or an adjustable output with ON/OFF pin. Both versions are available in a TO-220 power package, DDPAK/TO-263 surface mount package, and an 8-lead SOIC package. The fixed output version is also available in the TO-92 plastic package. Connection Diagrams FIXED VOLTAGE OUTPUT Figure 1. TO-220 3-Lead Power Package Figure 2. DDPAK/TO-263 Surface-Mount Package Front View Top View Figure 3. Side View 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2000–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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