
Allicdata Part #: | LTC3621EDCB-3.3#TRMPBF-ND |
Manufacturer Part#: |
LTC3621EDCB-3.3#TRMPBF |
Price: | $ 2.19 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Linear Technology/Analog Devices |
Short Description: | IC REG BUCK 3.3V 1A SYNC 6DFN |
More Detail: | Buck Switching Regulator IC Positive Fixed 3.3V 1 ... |
DataSheet: | ![]() |
Quantity: | 1000 |
500 +: | $ 1.99207 |
Voltage - Output (Min/Fixed): | 3.3V |
Base Part Number: | LTC3621 |
Supplier Device Package: | 6-DFN (2x3) |
Package / Case: | 6-WFDFN Exposed Pad |
Mounting Type: | Surface Mount |
Operating Temperature: | -40°C ~ 125°C (TJ) |
Synchronous Rectifier: | Yes |
Frequency - Switching: | 1MHz |
Current - Output: | 1A |
Voltage - Output (Max): | -- |
Series: | -- |
Voltage - Input (Max): | 17V |
Voltage - Input (Min): | 2.7V |
Number of Outputs: | 1 |
Output Type: | Fixed |
Topology: | Buck |
Output Configuration: | Positive |
Function: | Step-Down |
Part Status: | Active |
Packaging: | Tape & Reel (TR) |
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The LTC3621EDCB-3.3#TRMPBF is a highly integrated low quiescent current, wide input voltage range DC/DC switching regulator capable of providing up to 3.3A of continuous output current with a typical efficiency of 92%. This switching regulator is a great choice for battery operated systems that require the lowest possible quiescent current. The LTC3621 has integrated power switches, MOSFET driver, high side and low side switched current sensing, and other features that greatly simplify board layout and component count for a given application.
The LTC3621EDCB-3.3#TRMPBF is offered in a thermally enhanced, low profile 4-lead TSOT package that meets the JEDEC standard. It operates in a wide range of input voltage from 2.7V to 18V and the adjustable output voltage can be set from 0.6V to 5.5V. This device is capable of providing up to 3.3A continuous output current and it has an integrated power switch which eliminates the need for a power FET, allowing for a more compact and efficient design. Its efficient synchronous rectifier topology delivers excellent load and line regulation. The LTC3621EDCB-3.3#TRMPBF has wide operating temperature range of -40°C to +125°C and is ideal for any high current application such as video, power amplifiers, automotive, industrial and telecommunications.
The LTC3621EDCB-3.3#TRMPBF DC/DC switching regulator is a great choice for portable, battery-powered applications that require the lowest possible quiescent current while delivering 3.3A continuous output current. Its advanced features, such as synchronous rectifier, internal current sensing, over temperature protection and under voltage lockout, allow it to provide high efficiency, low noise and superior performance for a wide range of input and output voltages.
The working principle of LTC3621EDCB-3.3#TRMPBF DC/DC switching regulator is a combination of four components, namely a comparator, an error amplifier, a power MOSFET, and a voltage reference. The comparator compares the feedback voltage to a reference voltage and switches the MOSFET accordingly. This then regulates the output voltage. The error amplifier amplifies the feedback voltage which is then compared to the reference voltage. The voltage reference then provides a fixed reference point which the regulator uses to compare its output to. Once the output voltage is within the desired tolerance, the voltage reference maintains it by driving the power MOSFET to switch on and off.
The LTC3621EDCB-3.3#TRMPBF DC/DC switching regulator is ideal for applications such as video, power amplifiers, automotive, industrial and telecommunications. Its advanced features such as synchronous rectifier, internal current sensing, over temperature protection and under voltage lockout provide high efficiency and superior performance. In addition, its integrated power switch eliminates the need for a power FET, allowing for a more compact and efficient design. This device also offers a wide input voltage range of 2.7V to 18V, a typical efficiency of 92%, and a wide operating temperature range of -40°C to +125°C.
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