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TPS7A4901DGNR Fiches technique(PDF) 1 Page - Texas Instruments |
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TPS7A4901DGNR Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 23 page 2 1 3 4 7 8 6 5 FB NC GND OUT EN NR/SS DNC IN DGNPACKAGE 3mm 5mmMSOP-8PowerPAD (TOPVIEW) ´ TPS7A49 IN +18V OUT EN GND -18V TPS7A30 IN OUT EN GND EVM +15V -15V TPS7A49xx www.ti.com SBVS121B – AUGUST 2010 – REVISED JANUARY 2010 +36V, +150mA, Ultralow-Noise, Positive LINEAR REGULATOR 1 FEATURES DESCRIPTION 23 • Input Voltage Range: +3V to +36V The TPS7A49xx series of devices are positive, high-voltage (+36V), ultralow noise (15.4mVRMS, 72dB • Noise: PSRR) linear regulators capable of sourcing a load of – 12.7mVRMS (20Hz to 20kHz) 150mA. – 15.4mVRMS (10Hz to 100kHz) These linear regulators include a CMOS • Power-Supply Ripple Rejection: logic-level-compatible enable pin and – 72dB (120Hz) capacitor-programmable soft-start function that allows for customized power-management schemes. Other – ≥ 52dB (10Hz to 400kHz) features available include built-in current limit and • Adjustable Output: +1.194V to +33V thermal shutdown protection to safeguard the device • Output Current: 150mA and system during fault conditions. • Dropout Voltage: 260mV at 100mA The TPS7A49xx family is designed using bipolar • Stable with Ceramic Capacitors ≥ 2.2mF technology, and is ideal for high-accuracy, high-precision instrumentation applications where • CMOS Logic-Level-Compatible Enable Pin clean voltage rails are critical to maximize system • Built-In, Fixed, Current-Limit and Thermal performance. This design makes it an excellent Shutdown Protection choice to power operational amplifiers, • Available in High Thermal Performance analog-to-digital converters (ADCs), digital-to-analog MSOP-8 PowerPAD™ Package converters (DACs), and other high-performance analog circuitry. • Operating Tempature Range: –40°C to +125°C In addition, the TPS7A49xx family of linear regulators APPLICATIONS is suitable for post dc/dc converter regulation. By filtering out the output voltage ripple inherent to dc/dc • Supply Rails for Op Amps, DACs, ADCs, and switching conversion, maximum system performance Other High-Precision Analog Circuitry is provided in sensitive instrumentation, test and • Audio measurement, audio, and RF applications. • Post DC/DC Converter Regulation and Ripple Filtering For applications where both positive and negative high-performance rails are required, consider TI’s • Test and Measurement TPS7A30xx family of negative high-voltage, • RX, TX, and PA Circuitry ultralow-noise linear regulators as well. • Industrial Instrumention • Base Stations and Telecom Infrastrucure Typical Application Post DC/DC Converter Regulation for High-Performace Analog Circuitry 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 PowerPAD is a trademark of Texas Instruments. 3 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2010, 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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