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LM2787 데이터시트(PDF) 1 Page - Texas Instruments |
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LM2787 데이터시트(HTML) 1 Page - Texas Instruments |
1 / 9 page LM2787 www.ti.com SNVS080F – JULY 2001 – REVISED MAY 2013 LM2787 Low Noise Regulated Switched Capacitor Voltage Inverter in DSBGA Check for Samples: LM2787 1 FEATURES DESCRIPTION The LM2787 CMOS Negative Regulated Switched 2 • Inverts and Regulates the Input Supply Capacitor Voltage Inverter delivers a very low noise Voltage adjustable output for an input voltage in the range of • Small 8-Bump DSBGA and Thin DSBGA +2.7V to +5.5V. Four low cost capacitors are used in Packages this circuit to provide up to 10mA of output current. The regulated output for the LM2787 is adjustable • 91% Typical Charge Pump Power Efficiency at between −1.5V and −5.2V. The LM2787 operates at 10mA 260 kHz (typical) switching frequency to reduce • Low Output Ripple output resistance and voltage ripple. With an • Shutdown Lowers Quiescent Current to 0.05 operating current of only 400 µA (charge pump power µA (Typical) efficiency greater than 90% with most loads) and 0.05 µA typical shutdown current, the LM2787 provides ideal performance for cellular phone power amplifier APPLICATIONS bias and other low current, low noise negative voltage • Wireless Communication Systems needs. The device comes in small 8-Bump DSBGA • Cellular Phone Power Amplifier Biasing and thin DSBGA packages. • Interface Power Supplies • Handheld Instrumentation • Laptop Computers and PDA's Typical Application Circuit and Connection Diagram 8-Bump DSBGA (Top 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 © 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. |
유사한 부품 번호 - LM2787_15 |
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유사한 설명 - LM2787_15 |
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