Analog Devices LT3041
The LT3041 is a high-performance, low-dropout linear regulator featuring Analog Devices, Inc., ultra-low noise and ultra-high power supply rejection ratio (PSRR) architecture for powering noise-sensitive applications. Designed as a precision-current reference followed by a high-performance voltage buffer, the LT3041 can be easily paralleled to further reduce noise, increase output current, and spread heat on the printed circuit board (PCB). The LT3041 supplies 1 A at a typical 310 mV dropout voltage.
| Part No. |
LT3041 |
| Datasheet |
LT3041
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| Manufacturer |
 Analog Devices |
| Description |
20V 1A Ultra-Low Noise Ultra-High PSRR Linear Regulator |
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FEATURES
► Ultra-low output RMS noise: 1.0 μV rms (10 Hz to 100 kHz) ► Ultra-low output noise spectral density: 3 nV/√Hz at 10 kHz ► Ultra-low 1/f noise: 8 µV p-p (0.1 Hz to 10 Hz) ► Ultra-high PSRR: 80 dB at 1 MHz ► Output current: 1 A ► Wide input voltage range: 2.2 V to 20 V ► Single capacitor improves noise and PSRR ► SET pin current: 100 µA, ±0.5% initial accuracy ► VIOC pin to manage power dissipation ► Single resistor programs output voltage ► Programmable current limit ► Low-dropout voltage: 310 mV ► Output voltage range: 0.2 V to 19 V ► 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: 2 parallel 10 µF ceramic ► Compact, low profile, 14-lead, 4 mm × 3 mm, DFN package APPLICATIONS
► RF power supplies: phase-locked loops, voltage-controlled oscillators, mixers, low-noise amplifiers, and power amplifiers ► Low-noise instrumentation ► High-s...
