The LT3083ET is a 3A low dropout linear regulator that can be paralleled to increase output current or spread heat on surface mounted boards. Architected as a precision current source and voltage follower, this new regulator finds use in many applications requiring high current, adjustability to zero, and no heat sink. The device also brings out the collector of the pass transistor to allow low dropout operation—down to 310mV—when used with multiple supplies.
A key feature of the LT3083ET is the capability to supply a wide output voltage range. By using a reference current through a single resistor, the output voltage is programmed to any level between zero and 23V (DD-PAK and TO-220 packages). The LT3083ET is stable with 10μF of capacitance on the output, and the IC is stable with small ceramic capacitors that do not require additional ESR as is common with other regulators.
Internal protection circuitry includes current limiting and thermal limiting. The LT3083ET is offered in the 16-lead TSSOP (with an exposed pad for better thermal characteristics), 12-lead 4mm × 4mm DFN (also with an exposed pad), 5-lead TO-220, and 5-lead surface mount DD-PAK packages.
TYPE | DESCRIPTION | Select all |
---|---|---|
Current - Quiescent (Iq) | 50.5 µA | |
Package | Tube | |
PSRR | 85dB ~ 20dB (120Hz ~ 1MHz) | |
Product Status | Active | |
Output Configuration | Positive | |
Protection Features | Over Current, Over Temperature, Short Circuit | |
Output Type | Adjustable | |
Operating Temperature | -40°C ~ 125°C | |
Number of Regulators | 1 | |
Mounting Type | Through Hole | |
Voltage - Input (Max) | 23V | |
Package / Case | TO-220-5 | |
Voltage - Output (Min/Fixed) | 0V | |
Supplier Device Package | TO-220-5 | |
Voltage - Output (Max) | 23V | |
Voltage Dropout (Max) | 0.51V @ 3A | |
Current - Output | 3A | |
Current - Supply (Max) | 1 mA |
Analog Devices Inc.
Analog Devices (NASDAQ: ADI) leads in crafting high-performance analog, mixed-signal, and digital signal processing integrated circuits. For decades, they've tackled signal processing challenges across global electronics. With over 100,000 clients, their products convert real-world phenomena into electrical signals. Merged with Maxim Integrated, they offer top-tier mixed-signal and power management technologies, solving complex problems from DC to 100 GHz and sensor to cloud.
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