| Allicdata Part #: | LTC1474CMS8-3.3#TRPBF-ND |
| Manufacturer Part#: |
LTC1474CMS8-3.3#TRPBF |
| Price: | $ 2.90 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | Linear Technology/Analog Devices |
| Short Description: | IC REG MULT CONFG INV 3.3V 8MSOP |
| More Detail: | Buck, Buck-Boost, SEPIC Switching Regulator IC Pos... |
| DataSheet: |  LTC1474CMS8-3.3#TRPBF Datasheet/PDF |
| Quantity: | 1000 |
| 2500 +: | $ 2.63469 |
Specifications
| Voltage - Output (Min/Fixed): | 3.3V |
| Base Part Number: | LTC1474 |
| Supplier Device Package: | 8-MSOP |
| Package / Case: | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
| Mounting Type: | Surface Mount |
| Operating Temperature: | 0°C ~ 70°C (TA) |
| Synchronous Rectifier: | No |
| Frequency - Switching: | -- |
| Current - Output: | 750mA (Switch) |
| Voltage - Output (Max): | -- |
| Series: | -- |
| Voltage - Input (Max): | 18V |
| Voltage - Input (Min): | 3V |
| Number of Outputs: | 1 |
| Output Type: | Fixed |
| Topology: | Buck, Buck-Boost, SEPIC |
| Output Configuration: | Positive or Negative |
| Function: | Step-Down, Step-Up/Step-Down |
| Part Status: | Active |
| Packaging: | Tape & Reel (TR) |
Description
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The LTC1474CMS8-3.3#TRPBF is a DC-DC switching regulator which falls into the category of PMIC - Voltage Regulators - DC DC Switching Regulators. It is a highly integrated monolithic device which provides a regulated output from an input voltage as low as 2.7V up to 28V, with a maximum input voltage of 36V. It is programmed to a fixed output voltage of 3.3V, with a maximum output current of 10A. The LTC1474CMS8-3.3#TRPBF provides a good power solution for those applications where very low voltage is required, such as portable electronic systems, tablets, LCD televisions, DVD players, and more. It offers good power efficiency with a shutdown current of less than 10uA. The regulator also features short-circuit protection, which is provided by an internal power-limit circuit which monitors average inductor current and can regulate the current as needed.The working principle of the LTC1474CMS8-3.3#TRPBF is based on the concept of buck switching. In this type of switching regulator, the incoming voltage is stepped down to the required output voltage using a buck converter. This converter comprises of an inductor and a Schottky diode along with the input capacitor. When the switch is closed, energy is stored in the inductor as a magnetic field. The power from the input voltage is then converted into a higher current which is supplied to the load. During this process, the inductor acts as an energy storage element.At the same time, the output capacitor isCharged to the required level and helps maintain the output voltage. The switching speed of the regulator is controlled by the controller IC, which uses an internal oscillator to generate the pulses. The speed of the pulses can be varied by altering the clock frequency. The LTC1474CMS8-3.3#TRPBF also features a synchronous rectifier which helps in achieving higher efficiencies. It is a MOSFET which is connected in parallel with the Schottky diode and acts as a replacement for the diode. When the switch is opened, the synchronous rectifier turns off, allowing the Schottky diode to conduct the current. In this way, the losses in the diode are minimized and the power efficiency of the regulator is improved.Overall, the LTC1474CMS8-3.3#TRPBF offers a highly efficient, cost effective, and reliable solution for those applications which require a low voltage output. Its compact size, low power consumption and robust protection features, makes it an ideal choice for many applications.The specific data is subject to PDF, and the above content is for reference
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