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News
40VIN, 2.1A Rail-to-Rail LDO+ Now Offered in High Temp, 150°C H-Grade in TSSOP Package
2016-09-22 | ReturnThe LT3086 features a 1.4V to 40V input voltage range. A single resistor programs output voltage from 0.4V to 32V and dropout voltage is only 330mV at 2.1A. The LT3086 achieves line and load regulation of 0.1%, independent of output voltage. The trimmed, precision 50µA current reference is ±1% accurate, providing ±2% output voltage tolerance over line, load and temperature. Output voltage regulation, bandwidth, transient response and noise (40µVRMS) remain independent of output voltage due to the device’s unity gain voltage follower architecture.
Unique internal circuitry allows paralleling of multiple LT3086s for higher load current and heat spreading without needing external ballast resistors. Programmable cable drop compensation cancels regulation errors caused by line drops to the load. Output current and temperature monitoring, in addition to a power good flag with programmable threshold, provide system monitoring and diagnostic/debug capability. Internal fault circuitry includes thermal shutdown and current limit with foldback. Thermal limit and current limit are externally programmable. The device’s reverse-battery and reverse-current protection add robustness to the end design.
The LT3086HFE adjustable output version is offered in the thermally enhanced TSSOP surface mount package, specified with an operating junction temperature range of –40°C to 150°C. Devices are available from stock and 1,000-piece pricing starts at $3.70 each. For more information, visit http://www.linear.com/product/LT3086
Summary of Features: LT3086
1. Operating Junction Temperature Range: –40°C to 150°C (H-Grade TSSOP Only)
2. Wide Input Voltage Range: 1.4V to 40V
3. 1 Resistor Sets Output Voltage: 0.4V to 32V
4. Output Current: 2.1A
5. ±2% Tolerance Over Line, Load & Temperature
6. Output Current Monitor: IMON = IOUT/1000
7. Temperature Monitor with Programmable Thermal Limit
8. Programmable Current Limit
9. Programmable Cable Drop Compensation
10. Parallel Multiple Devices for Higher Current
11. Dropout Voltage: 330mV
12. 1 Capacitor Soft-Starts Output & Decreases Noise
13. Low Output Noise: 40μVRMS (10Hz to 100kHz)
14. Precision, Programmable External Current Limit
15. Power Good Flag with Programmable Threshold
16. Ceramic Output Capacitors: 10μF Minimum
17. Quiescent Current in Shutdown: <1μA
18. Reverse-Battery, Reverse-Current Protection
19. Available in 4mm × 5mm 16-Lead DFN, 16-Lead TSSOP, 7-Lead DD-PAK & 7-Lead TO-220 Packages
The USA list pricing shown is for budgetary use only. International prices may differ due to local duties, taxes, fees and exchange rates.
Source:http://www.linear.com/