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LT3991EDD Analog Devices Inc.
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.
View All Product from Analog Devices Inc.The LT3991EDD is an adjustable frequency monolithic buck switching regulator that accepts a wide input voltage range up to 55V. Low quiescent current design consumes only 2.8μA of supply current while regulating with no load. Low ripple Burst Mode operation maintains high efficiency at low output currents while keeping the output ripple below 15mV in a typical application. An internally compensated current mode topology is used for fast transient response and good loop stability. A high efficiency 0.44Ω switch is included on the die along with a boost Schottky diode and the necessary oscillator, control and logic circuitry. An accurate 1V threshold enable pin can be used to shut down the LT3991, reducing the input supply current to 700nA. A capacitor on the SS pin provides a controlled inrush current (soft-start). A power good flag signals when VOUT reaches 91% of the programmed output voltage. The LT3991EDD is available in small 10-pin MSOP and 3mm × 3mm DFN packages with exposed pads for low thermal resistance.
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TYPE | DESCRIPTION | Select all |
---|---|---|
Voltage - Output (Min/Fixed) | 1.19V | |
Voltage - Output (Max) | 30V | |
Package | Tube | |
Current - Output | 1.2A | |
Product Status | Obsolete | |
Frequency - Switching | 200kHz ~ 2MHz | |
Function | Step-Down | |
Synchronous Rectifier | No | |
Output Configuration | Positive | |
Operating Temperature | -40°C ~ 125°C (TJ) | |
Topology | Buck | |
Mounting Type | Surface Mount | |
Output Type | Adjustable | |
Package / Case | 10-WFDFN Exposed Pad | |
Number of Outputs | 1 | |
Supplier Device Package | 10-DFN (3x3) | |
Voltage - Input (Min) | 4.3V | |
Voltage - Input (Max) | 55V |
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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