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TPS7A4515KTTR Datasheet(PDF) 1 Page - Texas Instruments |
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TPS7A4515KTTR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 25 page 1 FEATURES DESCRIPTION APPLICATIONS 1 3 2 GND IN SHDN SENSE/ADJ OUT 5 4 KTT PACKAGE (TOP VIEW) TPS7A45xx www.ti.com ........................................................................................................................................................ SLVS720A – JUNE 2008 – REVISED AUGUST 2008 LOW-NOISE FAST-TRANSIENT-RESPONSE 1.5-A LDO VOLTAGE REGULATORS 2 • Optimized for Fast Transient Response • Output Current: 1.5 A The TPS7A45xx devices are low-dropout (LDO) regulators optimized for fast transient response. The • High Output Voltage Accuracy : 1% at 25°C device can supply 1.5 A of output current with a • Dropout Voltage: 300 mV dropout voltage of 300 mV. Operating quiescent • Low Noise: 35 µV RMS (10 Hz to 100 kHz) current is 1 mA, dropping to less than 1 µA in shutdown. Quiescent current is well controlled; it does • High Ripple Rejection: 68 dB not rise in dropout, as with many other regulators. In • 1-mA Quiescent Current addition to fast transient response, the TPS7A45xx • No Protection Diodes Needed regulators have very low output noise, which makes them ideal for sensitive RF supply applications. • Controlled Quiescent Current in Dropout • Fixed Output Voltages: 1.5 V, 1.8 V, 2.5 V, 3.3 V Output voltage range is from 1.21 V to 20 V. The TPS7A45xx regulators are stable with output • Adjustable Output from 1.21 V to 20 V capacitors as low as 10 µF. Small ceramic capacitors • Less Than 1-µA Quiescent Current in can be used without the necessary addition of ESR, Shutdown as is common with other regulators. Internal • Stable with 10-µF Output Capacitor protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and • Stable with Ceramic Capacitors reverse-current protection. The devices are available • Reverse-Battery Protection in fixed output voltages of 1.5 V, 1.8 V, 2.5 V, 3.3 V, • No Reverse Current and as an adjustable device with a 1.21-V reference voltage. The TPS7A45xx regulators are available in • Thermal Limiting the 5-pin TO-263 (KTT) package. • 3.3-V to 2.5-V Logic Power Supplies • Post Regulator for Switching Supplies • Wireless Infrastructure • Radio-Frequency Systems 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, PowerFLEX are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2008, 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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