LT3045-EP 20V, 500mA, Ultralow Noise, Ultrahigh PSRR Linear Regulator
●Ultralow RMS Noise: 0.8μVRMS (10Hz to 100kHz)
●Ultralow Spot Noise: 2nV/√Hz at 10kHz
●Ultrahigh PSRR: 76dB at 1MHz
●Output Current: 500mA
●Wide Input Voltage Range: 1.8V to 20V
●Single Capacitor Improves Noise and PSRR
●100μA SET Pin Current: ±1% Initial Accuracy
●Single Resistor Programs Output Voltage
●High Bandwidth: 1MHznProgrammable Current Limit
●Low Dropout Voltage: 260mV
●Output Voltage Range: 0V to 15V
●Programmable Power Good
●Fast Start-Up Capability
●Precision Enable/UVLO
●Parallelable for Lower Noise and Higher Current
●Internal Current Limit with Foldback
●Minimum Output Capacitor: 10μF Ceramic
●Reverse-Battery and Reverse-Current Protection
●12-Lead MSOP Package
■ENHANCED PRODUCT FEATURES
●Supports Defense and Aerospace Applications (AQEC Standard)
●Military Temperature Range (–55°C to 150°C)
●Controlled Manufacturing Baseline
●One Assembly/Test Site
●One Fabrication Site
●Product Change Notification
●Qualification Data Available on Request
■DESCRIPTION
●The LT®3045-EP is a high performance low dropout linear regulator featuring LTC’s ultralow noise and ultrahigh PSRR architecture for powering noise sensitive applications. Designed as a precision current reference followed by a high performance voltage buffer, the LT3045-EP can be easily paralleled to further reduce noise, increase output current and spread heat on the PCB.
●The device supplies 500mA at a typical 260mV dropout voltage. Operating quiescent current is nominally 2.2mA and drops to <<1μA in shutdown. The LT3045-EP’s wide output voltage range (0V to 15V) while maintaining unity-gain operation provides virtually constant output noise, PSRR, bandwidth and load regulation, independent of the programmed output voltage. Additionally, the regulator features programmable current limit, fast start-up capability and programmable power good to indicate output voltage regulation.
●The LT3045-EP is stable with a minimum 10μF ceramic output capacitor. Built-in protection includes reverse-battery protection, reverse-current protection, internal current limit with foldback and thermal limit with hysteresis. The LT3045-EP is available in thermally enhanced 12-Lead MSOP package. Additional application and technical information can be found in LT3045 data sheet.
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Datasheet |
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Please see the document for details |
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MSOP;MSE |
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English Chinese Chinese and English Japanese |
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01/22 |
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Rev. A |
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218 KB |
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