Allicdata Part #: | LT3494EDDB#TRMPBFTR-ND |
Manufacturer Part#: |
LT3494EDDB#TRMPBF |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Linear Technology/Analog Devices |
Short Description: | IC REG BOOST ADJ 115MA 8DFN |
More Detail: | Boost Switching Regulator IC Positive Adjustable 2... |
DataSheet: | LT3494EDDB#TRMPBF Datasheet/PDF |
Quantity: | 1000 |
Voltage - Output (Min/Fixed): | 2.3V |
Base Part Number: | LT3494 |
Supplier Device Package: | 8-DFN (3x2) |
Package / Case: | 8-WFDFN Exposed Pad |
Mounting Type: | Surface Mount |
Operating Temperature: | -40°C ~ 85°C (TA) |
Synchronous Rectifier: | No |
Frequency - Switching: | -- |
Current - Output: | 115mA (Switch) |
Voltage - Output (Max): | 40V (Switch) |
Series: | -- |
Voltage - Input (Max): | 16V |
Voltage - Input (Min): | 2.3V |
Number of Outputs: | 1 |
Output Type: | Adjustable |
Topology: | Boost |
Output Configuration: | Positive |
Function: | Step-Up |
Part Status: | Active |
Packaging: | Tape & Reel (TR) |
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The LT3494EDDB#TRMPBF is a wide input voltage range, step-down switching regulator with integrated internal power switches. It is designed for compact systems that require a wide input voltage range, up to 40V, with a single regulator. It is ideal for automotive applications, distributed power systems applications, or any other applications that require high efficiency, high power, and high reliability.
The LT3494EDDB provides excellent efficiency, up to 94%, and low quiescent current of 33μA. It includes protections such as under voltage lockout and thermal shutdown. The current mode control of the LT3494EDDB provides fast loop response, good line/load transient response and good noise rejection. The LT3494EDDB allows the designer to operate at a switching frequency of up to 1MHz, minimizing the size of the external components.
Application Field
The LT3494EDDB#TRMPBF is suitable for any application requiring high power, high efficiency, and low input voltage. Such applications include distributed power systems, automotive systems, industrial systems, telecom systems, off-line applications, and so on. It is also suitable for battery operated systems and solar energy storage systems.
Working Principle
The LT3494EDDB#TRMPBF operates in a current mode to provide high efficiency, fast loop response and good line/load transient response. The device allows the designer to select a fixed frequency or an externally adjust frequency via an optional external resistor. The device is protected with both under voltage lockout and thermal protection. In addition, a soft-start circuit is integrated to reduce the inrush current.
The LT3494EDDB#TRMPBF is based on a voltage-mode or current-mode buck controller. The in-rush current into the output is controlled with an external N-channel MOSFET. The device also features an output voltage fixed or adjustable via an external resistor and an enable pin to control the regulator\'s state by turning it on or off automatically.
When the LT3494EDDB#TRMPBF is enabled, the integrated internal power switches will be turned on with a PWM signal and current will start to flow into the inductor. When the current reaches its maximum peak, the switches will turn off and the current stored in the inductor will be discharged into the load. When the current reaches its minimum peak, the switches will again be turned on and the current will flow back into the input and the cycle repeats itself.
The output voltage of the LT3494EDDB#TRMPBF is regulated by a feedback loop. An internal or external voltage reference sets the desired output voltage. The voltage on the output is compared to the reference voltage, and the error is processed by the controller. The controller then adjusts the current in the inductor, and the output voltage follows the reference voltage.
In summary, the LT3494EDDB#TRMPBF is a wide input voltage range, switching regulator with integrated internal power switches, suitable for any application requiring high power, high efficiency, and low input voltage. It offers excellent efficiency, up to 94%, with current mode control for flat efficiency and fast loop response. It also offers protection against under voltage lockout, thermal shutdown, and inrush current limiting. The LT3494EDDB has a wide application field, from distributed power systems, automotive systems, to telecom systems, and off-line applications.
The specific data is subject to PDF, and the above content is for reference
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