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L00075B データシート - Texas Instruments

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L00075B 800-mA Ultra-Low-Noise, High-PSRR LDO TI
Texas Instruments TI
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L00075B データシート PDF : L00075B pdf   
LP38798 image

Description
The LP38798-ADJ is a high-performance, low-noise LDO that can supply up to 800 mA output current. Designed to meet the requirements of sensitive RF/Analog circuitry, the LP38798-ADJ implements a novel linear topology on an advanced CMOS process to deliver ultra-low output noise and high PSRR at switching power supply frequencies. The LP38798SD-ADJ is stable with both ceramic and tantalum output capacitors and requires a minimum output capacitance of only 1 µF for stability.

Features
• Wide Operating Input Voltage Range: 3 V to 20 V
• Ultra-Low Output Noise: 5 µVRMS (10 Hz to 100 kHz)
• High PSRR: 90 dB at 10 kHz, 60 dB at 100 kHz
• ±1% Output Voltage Initial Accuracy (TJ = 25°C)
• Very Low Dropout: 200 mV (Typical) at 800 mA
• Stable with Ceramic or Tantalum Output Capacitors
• Excellent Line and Load Transient Response
• Current Limit and Overtemperature Protection
• Create a Custom Design Using the LP38798 With the WEBENCH® Power Designer

Applications
• RF Power Supplies: PLLs, VCOs, Mixers, LNAs
• Telecom Infrastructure
• Wireless Infrastructure
• Very Low-Noise Instrumentation
• Precision Power Supplies
• High-Speed, High-Precision Data Converters

 

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