LT3042 Datasheet
20V, 200mA, Ultralow Noise, Ultrahigh PSRR RF Linear Regulator
20V, 200mA, Ultralow Noise, Ultrahigh PSRR RF Linear Regulator
| Part No. | In Stock | Price | Packaging | SPQ | Marking | MSL | Pins | Temp Range | Package Description |
| LT3042EDD#PBF | 0 | $3.06 | Tube | 121 | LGSJ | 1 | 10 | -40°C ~ 125°C | 10-Lead DFN |
| LT3042EDD#TRPBF | 5000pcs | $3.06 | Reel | 2500 | LGSJ | 1 | 10 | -40°C ~ 125°C | 10-Lead DFN |
| LT3042EMSE#PBF | 0 | $3.06 | Tube | 50 | LTGSH | 1 | 10 | -40°C ~ 125°C | 10-Lead MSOP-EP |
| LT3042EMSE#TRPBF | 17500pcs | $3.06 | Reel | 2500 | LTGSH | 1 | 10 | -40°C ~ 125°C | 10-Lead MSOP-EP |
| LT3042HDD#PBF | 0 | $3.789 | Tube | 121 | LGSJ | 1 | 10 | -40°C ~ 150°C | 10-Lead DFN |
| LT3042HDD#TRPBF | 1800pcs | $3.789 | Reel | 2500 | LGSJ | 1 | 10 | -40°C ~ 150°C | 10-Lead DFN |
| LT3042HMSE#PBF | 0 | $3.789 | Tube | 50 | LTGSH | 1 | 10 | -40°C ~ 150°C | 10-Lead MSOP-EP |
| LT3042HMSE#TRPBF | 2500pcs | $3.789 | Reel | 2500 | LTGSH | 1 | 10 | -40°C ~ 150°C | 10-Lead MSOP-EP |
| LT3042IDD#PBF | 0 | $3.393 | Tube | 121 | LGSJ | 1 | 10 | -40°C ~ 125°C | 10-Lead DFN |
| LT3042IDD#TRPBF | 5000pcs | $3.402 | Reel | 2500 | LGSJ | 1 | 10 | -40°C ~ 125°C | 10-Lead DFN |
| LT3042IMSE#PBF | 0 | $3.402 | Tube | 50 | LTGSH | 1 | 10 | -40°C ~ 125°C | 10-Lead MSOP-EP |
| LT3042IMSE#TRPBF | 7500pcs | $3.402 | Reel | 2500 | LTGSH | 1 | 10 | -40°C ~ 125°C | 10-Lead MSOP-EP |
| LT3042MPDD#PBF | 0 | $7.758 | Tube | 121 | LGSJ | 1 | 10 | -55°C ~ 150°C | 10-Lead DFN |
| LT3042MPDD#TRPBF | 0 | $7.767 | Reel | 2500 | LGSJ | 1 | 10 | -55°C ~ 150°C | 10-Lead DFN |
| LT3042MPMSE#PBF | 0 | $7.767 | Tube | 50 | LTGSH | 1 | 10 | -55°C ~ 150°C | 10-Lead MSOP-EP |
| LT3042MPMSE#TRPBF | 0 | $7.767 | Reel | 2500 | LTGSH | 1 | 10 | -55°C ~ 150°C | 10-Lead MSOP-EP |
The LT3042 is a high performance low dropout linear regulator featuring LTC’s ultralow noise and ultrahigh PSRR architecture for powering noise sensitive RF applications. Designed as a precision current reference followed by a high performance voltage buffer, the LT3042 can be easily paralleled to further reduce noise, increase output current and spread heat on the PCB.
The device supplies 200mA at a typical 350mV dropout voltage. Operating quiescent current is nominally 2mA and drops to <<1μA in shutdown. The LT3042’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 LT3042 is stable with a minimum 4.7μF ceramic output capacitor. Built-in protection includes reverse battery protection, reverse current protection, internal current limit with foldback and thermal limit with hysteresis. The LT3042 is available in thermally enhanced 10-Lead MSOP and 3mm × 3mm DFN packages.