Analog Devices Inc. LT3090 and LT3091 Negative Linear Regulators
Analog Devices Inc. LT3090 and LT3091 Negative Linear Regulators increase output current or spread heat on surface-mounted boards. The LT3090 and LT3091 are designed with a precision current reference followed by a high-performance rail-to-rail voltage buffer. The regulators are used in applications requiring precision output, high current with no heat sink, output adjustability to zero, and low dropout voltage. The Analog Devices LT3090 and LT3091 Negative Linear Regulators can also be configured as a 3-terminal floating regulator.
Features
- Single resistor sets output voltage
- ±1% initial accuracy 50μA SET pin current
- Programmable current limit
- Positive or negative output current monitor
- Parallelable for higher current and heat spreading
- 300mV low dropout voltage
- 18μVRMS (10Hz to 100kHz) low output noise
- Configurable as 3-terminal floating regulator
- 0V to -32V rail-to-rail output voltage range
- Positive/negative shutdown logic or UVLO
- -1.5V to -36V wide input voltage range
- Programmable cable drop compensation
- 1.2mV (1mA to 600mA) load regulation
- Stable with 4.7μF minimum output capacitor
- Stable with ceramic or tantalum capacitors
Applications
- Post regulator for switching supplies
- Low noise instrumentation and RF supplies
- Rugged industrial supplies
- Precision power supplies
Typical Applications
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Publicado: 2017-05-19
| Atualizado: 2022-04-08