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LP3981ILDX-2.8 Datasheet(PDF) 1 Page - Texas Instruments |
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LP3981ILDX-2.8 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 21 page LP3981 www.ti.com SNVS159G – OCTOBER 2001 – REVISED MAY 2013 LP3981 Micropower, 300mA Ultra Low-Dropout CMOS Voltage Regulator Check for Samples: LP3981 1 FEATURES APPLICATIONS 2 • Small, Space Saving VSSOP-8 • CDMA Cellular Handsets • Low Thermal Resistance in WSON-6 Package • Wideband CDMA Cellular Handsets Gives Excellent Power Capability • GSM Cellular Handsets • Logic Controlled Enable • Portable Information Appliances • Stable with Ceramic and High Quality • Tiny 3.3V ± 5% to 2.5V, 300mA Converter Tantalum Capacitors • Fast Turn-On DESCRIPTION The LP3981's performance is optimized for battery • Thermal Shutdown and Short-Circuit Current powered systems to deliver ultra low noise, extremely Limit low dropout voltage and low quiescent current. Regulator ground current increases only slightly in KEY SPECIFICATIONS dropout, further prolonging the battery life. • 2.5 to 6.0V Input Range Power supply rejection is better than 60 dB at low • 300mA Output frequencies. This high power supply rejection is • 60dB PSRR at 1kHz maintained down to lower input voltage levels common to battery operated circuits. • ≤1μA Quiescent Current when Shut Down • Fast Turn-On Time: 120 μs (Typ.) with CBYPASS The device is ideal for mobile phone and similar battery powered wireless applications. It provides up = 0.01uF to 300 mA, from a 2.5V to 6V input, consuming less • 132mV Typ Dropout with 300mA Load than 1µA in disable mode. • 35 μVrms Output Noise over 10Hz to 100kHz The LP3981 is available in VSSOP-8 package. For • −40 to +125°C Junction Temperature Range for LP3981 in WSON-6 package, contact TI sales offices. Operation Performance is specified for −40°C to +125°C • 2.5V, 2.7V, 2.8V, 2.83V, 3.0V, 3.03V, and 3.3V temperature range. The device available in the Outputs Standard following output voltages; 2.5V, 2.7V, 2.8V, 2.83V, 3.0V, 3.03V and 3.3V as standard. Other output options can be made available, please contact your local TI sales office. Typical Application Circuit Note: Pin Numbers in parenthesis indicate WSON-6 package. 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 © 2001–2013, 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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